Ignition + TurboFan: Node.js benchmarks

[vsemozhetbyt]

• Version: 8.0
• Platform: Windows 7 x64
• Subsystem: v8, benchmark

This commit in the v8/node/vee-eight-lkgr has turned the new Ignition+TurboFan pipeline on by default. To see the performance impact, I've built vee-eight-lkgr before and after this commit and have started common Node.js benchmark suites with them.
Both builds have these same versions:

{ http_parser: '2.7.0',
  node: '8.0.0-pre',
  v8: '5.9.0 (candidate)',
  uv: '1.11.0',
  zlib: '1.2.11',
  ares: '1.10.1-DEV',
  modules: '56',
  openssl: '1.0.2k',
  icu: '58.2',
  unicode: '9.0',
  cldr: '30.0.3',
  tz: '2016j' }

As my machine is not a fast one, I will post the results piecemeal.

UPD. All suites are complete.

TOC:

• arrays (+ fixed benchmarks)
• assert
• buffers (+ buffer-swap.js with --set n=1e6)
• child_process
• crypto
• dgram
• domain
• es (+ new foreach-bench.js)
• events
• fs
• http
• misc
• module
• net (except tcp-raw-pipe.js)
• os
• path
• process
• querystring
• streams (+ on Windows)
• string_decoder
• timers (+ on Windows)
• tls
• url
• util
• vm (+ on Windows)

[vsemozhetbyt]

arrays:

                                                improvement confidence      p.value
 arrays\\var-int.js n=25 type="Array"                2.12 %        *** 1.911996e-11
 arrays\\var-int.js n=25 type="Buffer"              -1.39 %        *** 2.953185e-13
 arrays\\var-int.js n=25 type="Float32Array"         1.36 %        *** 4.482114e-21
 arrays\\var-int.js n=25 type="Float64Array"        -1.29 %        *** 3.712094e-13
 arrays\\var-int.js n=25 type="Int16Array"          -1.71 %        *** 3.185373e-15
 arrays\\var-int.js n=25 type="Int32Array"          -0.84 %        *** 3.184537e-04
 arrays\\var-int.js n=25 type="Int8Array"           -1.43 %        *** 2.081429e-16
 arrays\\var-int.js n=25 type="Uint16Array"         -1.61 %        *** 1.591048e-17
 arrays\\var-int.js n=25 type="Uint32Array"         -0.51 %          * 4.560219e-02
 arrays\\var-int.js n=25 type="Uint8Array"          -1.42 %        *** 3.315598e-35
 arrays\\zero-float.js n=25 type="Array"            -0.29 %          * 2.067735e-02
 arrays\\zero-float.js n=25 type="Buffer"            0.81 %        *** 1.432181e-14
 arrays\\zero-float.js n=25 type="Float32Array"     10.16 %        *** 1.887618e-43
 arrays\\zero-float.js n=25 type="Float64Array"      0.37 %         ** 1.180476e-03
 arrays\\zero-float.js n=25 type="Int16Array"       -1.19 %        *** 7.951452e-28
 arrays\\zero-float.js n=25 type="Int32Array"       -6.52 %        *** 1.214743e-42
 arrays\\zero-float.js n=25 type="Int8Array"       -17.88 %        *** 7.204014e-81
 arrays\\zero-float.js n=25 type="Uint16Array"      -1.16 %        *** 2.603611e-21
 arrays\\zero-float.js n=25 type="Uint32Array"      -6.40 %        *** 5.803861e-43
 arrays\\zero-float.js n=25 type="Uint8Array"      -17.86 %        *** 7.705079e-84
 arrays\\zero-int.js n=25 type="Array"              -0.43 %          * 3.411995e-02
 arrays\\zero-int.js n=25 type="Buffer"              0.93 %        *** 3.097691e-12
 arrays\\zero-int.js n=25 type="Float32Array"       10.41 %        *** 3.242834e-58
 arrays\\zero-int.js n=25 type="Float64Array"        0.61 %         ** 6.996484e-03
 arrays\\zero-int.js n=25 type="Int16Array"         -1.18 %        *** 7.198962e-17
 arrays\\zero-int.js n=25 type="Int32Array"         -6.24 %        *** 2.192567e-42
 arrays\\zero-int.js n=25 type="Int8Array"         -17.80 %        *** 4.249127e-61
 arrays\\zero-int.js n=25 type="Uint16Array"        -1.04 %        *** 1.051799e-17
 arrays\\zero-int.js n=25 type="Uint32Array"        -6.41 %        *** 7.414706e-53
 arrays\\zero-int.js n=25 type="Uint8Array"        -17.98 %        *** 6.231374e-72

[vsemozhetbyt]

assert:

                                                                                                   improvement confidence      p.value
 assert\\deepequal-buffer.js method="nonstrict" len=100 n=1000                                          6.08 %        *** 2.240694e-16
 assert\\deepequal-buffer.js method="strict" len=100 n=1000                                             6.36 %        *** 1.715121e-08
 assert\\deepequal-prims-and-objs-big-array.js method="nonstrict" len=100000 n=25 prim="array"         11.16 %        *** 3.089537e-20
 assert\\deepequal-prims-and-objs-big-array.js method="nonstrict" len=100000 n=25 prim="boolean"       11.65 %        *** 6.319150e-35
 assert\\deepequal-prims-and-objs-big-array.js method="nonstrict" len=100000 n=25 prim="new-array"     11.43 %        *** 1.019362e-28
 assert\\deepequal-prims-and-objs-big-array.js method="nonstrict" len=100000 n=25 prim="null"          11.81 %        *** 6.516888e-28
 assert\\deepequal-prims-and-objs-big-array.js method="nonstrict" len=100000 n=25 prim="number"        10.07 %        *** 3.636875e-23
 assert\\deepequal-prims-and-objs-big-array.js method="nonstrict" len=100000 n=25 prim="object"        11.48 %        *** 2.818413e-35
 assert\\deepequal-prims-and-objs-big-array.js method="nonstrict" len=100000 n=25 prim="string"        11.38 %        *** 8.847026e-29
 assert\\deepequal-prims-and-objs-big-array.js method="nonstrict" len=100000 n=25 prim="undefined"     11.83 %        *** 2.848567e-29
 assert\\deepequal-prims-and-objs-big-array.js method="strict" len=100000 n=25 prim="array"            11.18 %        *** 1.020906e-28
 assert\\deepequal-prims-and-objs-big-array.js method="strict" len=100000 n=25 prim="boolean"          10.51 %        *** 5.346165e-17
 assert\\deepequal-prims-and-objs-big-array.js method="strict" len=100000 n=25 prim="new-array"        11.35 %        *** 6.250137e-27
 assert\\deepequal-prims-and-objs-big-array.js method="strict" len=100000 n=25 prim="null"             10.45 %        *** 2.073088e-24
 assert\\deepequal-prims-and-objs-big-array.js method="strict" len=100000 n=25 prim="number"           10.37 %        *** 1.018234e-15
 assert\\deepequal-prims-and-objs-big-array.js method="strict" len=100000 n=25 prim="object"           10.44 %        *** 3.487968e-24
 assert\\deepequal-prims-and-objs-big-array.js method="strict" len=100000 n=25 prim="string"           11.79 %        *** 1.710809e-38
 assert\\deepequal-prims-and-objs-big-array.js method="strict" len=100000 n=25 prim="undefined"        10.91 %        *** 3.133955e-27
 assert\\deepequal-prims-and-objs-big-loop.js method="nonstrict" n=1000000 prim="array"                39.25 %        *** 2.220953e-63
 assert\\deepequal-prims-and-objs-big-loop.js method="nonstrict" n=1000000 prim="boolean"              39.48 %        *** 3.117618e-82
 assert\\deepequal-prims-and-objs-big-loop.js method="nonstrict" n=1000000 prim="new-array"            40.43 %        *** 1.118514e-73
 assert\\deepequal-prims-and-objs-big-loop.js method="nonstrict" n=1000000 prim="null"                 39.43 %        *** 6.743661e-77
 assert\\deepequal-prims-and-objs-big-loop.js method="nonstrict" n=1000000 prim="number"               36.70 %        *** 8.813610e-64
 assert\\deepequal-prims-and-objs-big-loop.js method="nonstrict" n=1000000 prim="object"               40.04 %        *** 2.289447e-64
 assert\\deepequal-prims-and-objs-big-loop.js method="nonstrict" n=1000000 prim="string"               39.03 %        *** 1.345610e-76
 assert\\deepequal-prims-and-objs-big-loop.js method="nonstrict" n=1000000 prim="undefined"            39.12 %        *** 2.970695e-76
 assert\\deepequal-prims-and-objs-big-loop.js method="strict" n=1000000 prim="array"                   36.64 %        *** 3.348739e-60
 assert\\deepequal-prims-and-objs-big-loop.js method="strict" n=1000000 prim="boolean"                 33.43 %        *** 1.410337e-65
 assert\\deepequal-prims-and-objs-big-loop.js method="strict" n=1000000 prim="new-array"               35.21 %        *** 6.250969e-64
 assert\\deepequal-prims-and-objs-big-loop.js method="strict" n=1000000 prim="null"                    33.86 %        *** 1.815821e-64
 assert\\deepequal-prims-and-objs-big-loop.js method="strict" n=1000000 prim="number"                  32.49 %        *** 2.435150e-57
 assert\\deepequal-prims-and-objs-big-loop.js method="strict" n=1000000 prim="object"                  36.99 %        *** 3.538131e-46
 assert\\deepequal-prims-and-objs-big-loop.js method="strict" n=1000000 prim="string"                  33.83 %        *** 2.264266e-56
 assert\\deepequal-prims-and-objs-big-loop.js method="strict" n=1000000 prim="undefined"               34.27 %        *** 2.675520e-61
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Float32Array"              -11.66 %        *** 7.849993e-27
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Float64Array"              -11.36 %        *** 3.903625e-29
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Int16Array"                  8.10 %        *** 1.298645e-16
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Int32Array"                  6.88 %        *** 4.351738e-15
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Int8Array"                  10.21 %        *** 3.566406e-21
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Uint16Array"                 6.94 %        *** 6.770045e-14
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Uint32Array"                 7.38 %        *** 1.083080e-12
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Uint8Array"                  7.85 %        *** 5.187461e-18
 assert\\deepequal-typedarrays.js len=1000000 method="nonstrict" n=1 type="Uint8ClampedArray"           8.13 %        *** 7.616631e-16
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Float32Array"                 -11.03 %        *** 6.610454e-66
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Float64Array"                 -11.06 %        *** 2.551550e-46
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Int16Array"                     0.60 %            5.300335e-01
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Int32Array"                     0.09 %            8.860152e-01
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Int8Array"                      5.09 %        *** 2.161384e-04
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Uint16Array"                    3.97 %         ** 2.187538e-03
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Uint32Array"                    0.90 %            4.287213e-01
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Uint8Array"                     1.67 %            9.340617e-02
 assert\\deepequal-typedarrays.js len=1000000 method="strict" n=1 type="Uint8ClampedArray"              3.99 %        *** 9.655741e-04

[mscdex]

Yikes... those performance hits... especially for Uint8Array.

[hashseed]

There is still improvements being made in the area of TypedArrays: https://bugs.chromium.org/p/v8/issues/detail?id=5977

[Fishrock123]

Hmm yeah I think we should definitely keep an eye on that before merging. We use UInt8Array a lot.

[hashseed]

@bmeurer @psmarshall could we keep an eye on this?

[bmeurer]

Yes, this is mostly known. We know that there's some work to be done, not only for TypedArrays.

[vsemozhetbyt]

I had to abort buffer-swap.js benchmark after 2 runs because 1 run lasts ~ 2.5 hours, so default 60 runs would take 6 days. Maybe somebody with a free fast machine will be able to run a whole buffer-swap.js cycle later.

buffers:

                                                                                                                                                  improvement confidence      p.value
 buffers\\buffer-base64-decode.js n=32                                                                                                               -0.03 %            6.813796e-01
 buffers\\buffer-base64-encode.js n=32 len=67108864                                                                                                   0.10 %            7.395115e-02
 buffers\\buffer-bytelength.js n=5000000 len=1 encoding="base64"                                                                                     16.14 %        *** 5.629742e-46
 buffers\\buffer-bytelength.js n=5000000 len=1 encoding="utf8"                                                                                      -36.00 %        *** 2.712131e-60
 buffers\\buffer-bytelength.js n=5000000 len=16 encoding="base64"                                                                                    17.67 %        *** 8.234877e-53
 buffers\\buffer-bytelength.js n=5000000 len=16 encoding="utf8"                                                                                      -9.00 %        *** 6.554314e-47
 buffers\\buffer-bytelength.js n=5000000 len=2 encoding="base64"                                                                                     14.62 %        *** 1.496880e-30
 buffers\\buffer-bytelength.js n=5000000 len=2 encoding="utf8"                                                                                      -27.22 %        *** 4.940651e-70
 buffers\\buffer-bytelength.js n=5000000 len=256 encoding="base64"                                                                                   15.63 %        *** 5.408900e-35
 buffers\\buffer-bytelength.js n=5000000 len=256 encoding="utf8"                                                                                     -1.68 %        *** 1.306409e-05
 buffers\\buffer-bytelength.js n=5000000 len=4 encoding="base64"                                                                                     17.38 %        *** 8.353420e-48
 buffers\\buffer-bytelength.js n=5000000 len=4 encoding="utf8"                                                                                      -23.14 %        *** 2.336540e-62
 buffers\\buffer-bytelength.js n=5000000 len=64 encoding="base64"                                                                                    17.70 %        *** 9.030145e-49
 buffers\\buffer-bytelength.js n=5000000 len=64 encoding="utf8"                                                                                      -3.25 %        *** 2.280305e-12
 buffers\\buffer-compare-instance-method.js millions=1 args=1 size=1024                                                                             -11.50 %        *** 2.000140e-17
 buffers\\buffer-compare-instance-method.js millions=1 args=1 size=16                                                                               -12.12 %        *** 2.153111e-25
 buffers\\buffer-compare-instance-method.js millions=1 args=1 size=16386                                                                              2.15 %            3.759710e-01
 buffers\\buffer-compare-instance-method.js millions=1 args=1 size=4096                                                                             -11.47 %        *** 1.230915e-05
 buffers\\buffer-compare-instance-method.js millions=1 args=1 size=512                                                                              -10.09 %        *** 3.727958e-19
 buffers\\buffer-compare-instance-method.js millions=1 args=2 size=1024                                                                             -19.04 %        *** 7.673003e-27
 buffers\\buffer-compare-instance-method.js millions=1 args=2 size=16                                                                               -21.40 %        *** 3.935922e-62
 buffers\\buffer-compare-instance-method.js millions=1 args=2 size=16386                                                                             -2.74 %            1.174619e-01
 buffers\\buffer-compare-instance-method.js millions=1 args=2 size=4096                                                                             -15.96 %        *** 7.638449e-11
 buffers\\buffer-compare-instance-method.js millions=1 args=2 size=512                                                                              -19.64 %        *** 5.566149e-30
 buffers\\buffer-compare-instance-method.js millions=1 args=3 size=1024                                                                             -16.32 %        *** 9.753637e-24
 buffers\\buffer-compare-instance-method.js millions=1 args=3 size=16                                                                               -19.00 %        *** 2.905866e-60
 buffers\\buffer-compare-instance-method.js millions=1 args=3 size=16386                                                                             -3.50 %        *** 3.463127e-04
 buffers\\buffer-compare-instance-method.js millions=1 args=3 size=4096                                                                             -15.93 %        *** 6.136367e-12
 buffers\\buffer-compare-instance-method.js millions=1 args=3 size=512                                                                              -17.67 %        *** 2.211209e-33
 buffers\\buffer-compare-instance-method.js millions=1 args=4 size=1024                                                                             -17.24 %        *** 3.824330e-29
 buffers\\buffer-compare-instance-method.js millions=1 args=4 size=16                                                                               -19.58 %        *** 1.338838e-38
 buffers\\buffer-compare-instance-method.js millions=1 args=4 size=16386                                                                             -3.50 %        *** 2.668278e-06
 buffers\\buffer-compare-instance-method.js millions=1 args=4 size=4096                                                                             -15.32 %        *** 4.822259e-11
 buffers\\buffer-compare-instance-method.js millions=1 args=4 size=512                                                                              -16.30 %        *** 3.251165e-25
 buffers\\buffer-compare-instance-method.js millions=1 args=5 size=1024                                                                              -0.20 %            8.718793e-01
 buffers\\buffer-compare-instance-method.js millions=1 args=5 size=16                                                                                -0.35 %            3.508750e-01
 buffers\\buffer-compare-instance-method.js millions=1 args=5 size=16386                                                                              3.04 %         ** 1.167276e-03
 buffers\\buffer-compare-instance-method.js millions=1 args=5 size=4096                                                                              -4.48 %          * 3.204543e-02
 buffers\\buffer-compare-instance-method.js millions=1 args=5 size=512                                                                                1.06 %            8.748816e-02
 buffers\\buffer-compare-offset.js millions=1 size=1024 method="offset"                                                                              -3.03 %        *** 1.757880e-11
 buffers\\buffer-compare-offset.js millions=1 size=1024 method="slice"                                                                                7.19 %        *** 9.960328e-16
 buffers\\buffer-compare-offset.js millions=1 size=16 method="offset"                                                                                -3.49 %        *** 1.237199e-11
 buffers\\buffer-compare-offset.js millions=1 size=16 method="slice"                                                                                  7.24 %        *** 1.006812e-19
 buffers\\buffer-compare-offset.js millions=1 size=16386 method="offset"                                                                             -3.00 %        *** 5.300663e-09
 buffers\\buffer-compare-offset.js millions=1 size=16386 method="slice"                                                                               7.22 %        *** 6.424469e-16
 buffers\\buffer-compare-offset.js millions=1 size=4096 method="offset"                                                                              -3.75 %        *** 2.294207e-14
 buffers\\buffer-compare-offset.js millions=1 size=4096 method="slice"                                                                                7.18 %        *** 3.934175e-20
 buffers\\buffer-compare-offset.js millions=1 size=512 method="offset"                                                                               -3.34 %        *** 2.742405e-11
 buffers\\buffer-compare-offset.js millions=1 size=512 method="slice"                                                                                 7.59 %        *** 8.893416e-20
 buffers\\buffer-compare.js millions=1 size=1024                                                                                                    -21.69 %        *** 2.710130e-27
 buffers\\buffer-compare.js millions=1 size=16                                                                                                      -27.15 %        *** 4.754943e-54
 buffers\\buffer-compare.js millions=1 size=16386                                                                                                    -5.12 %         ** 1.333052e-03
 buffers\\buffer-compare.js millions=1 size=4096                                                                                                    -16.47 %        *** 2.029561e-11
 buffers\\buffer-compare.js millions=1 size=512                                                                                                     -23.08 %        *** 9.287436e-34
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=1 pieces=1                                                                             -4.73 %        *** 7.982186e-07
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=1 pieces=16                                                                           -26.40 %        *** 4.427981e-42
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=1 pieces=4                                                                            -19.26 %        *** 1.195433e-37
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=16 pieces=1                                                                            -9.86 %        *** 9.593113e-24
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=16 pieces=16                                                                          -24.97 %        *** 3.166334e-28
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=16 pieces=4                                                                           -21.01 %        *** 2.224996e-52
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=256 pieces=1                                                                           -6.38 %        *** 4.025680e-17
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=256 pieces=16                                                                         -12.39 %        *** 1.076091e-51
 buffers\\buffer-concat.js n=1024 withTotalLength=0 pieceSize=256 pieces=4                                                                          -13.81 %        *** 2.545945e-52
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=1 pieces=1                                                                             -3.94 %        *** 4.046170e-11
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=1 pieces=16                                                                           -29.76 %        *** 1.779827e-50
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=1 pieces=4                                                                            -19.35 %        *** 1.488346e-44
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=16 pieces=1                                                                           -12.40 %        *** 2.748948e-26
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=16 pieces=16                                                                          -30.48 %        *** 5.782960e-53
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=16 pieces=4                                                                           -22.38 %        *** 2.518032e-47
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=256 pieces=1                                                                           -7.67 %        *** 1.012370e-17
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=256 pieces=16                                                                         -13.33 %        *** 6.172313e-47
 buffers\\buffer-concat.js n=1024 withTotalLength=1 pieceSize=256 pieces=4                                                                          -12.97 %        *** 1.221396e-50
 buffers\\buffer-creation.js n=1024 len=10 type="buffer()"                                                                                           -5.87 %        *** 9.479277e-09
 buffers\\buffer-creation.js n=1024 len=10 type="fast-alloc-fill"                                                                                    17.73 %        *** 7.279321e-26
 buffers\\buffer-creation.js n=1024 len=10 type="fast-alloc"                                                                                         -7.55 %        *** 2.297406e-13
 buffers\\buffer-creation.js n=1024 len=10 type="fast-allocUnsafe"                                                                                  -10.28 %        *** 7.217664e-17
 buffers\\buffer-creation.js n=1024 len=10 type="slow-allocUnsafe"                                                                                   14.11 %        *** 3.181184e-20
 buffers\\buffer-creation.js n=1024 len=10 type="slow"                                                                                               13.62 %        *** 1.207137e-22
 buffers\\buffer-creation.js n=1024 len=1024 type="buffer()"                                                                                         -3.41 %         ** 1.440904e-03
 buffers\\buffer-creation.js n=1024 len=1024 type="fast-alloc-fill"                                                                                   9.64 %        *** 1.272331e-12
 buffers\\buffer-creation.js n=1024 len=1024 type="fast-alloc"                                                                                        2.22 %          * 3.739922e-02
 buffers\\buffer-creation.js n=1024 len=1024 type="fast-allocUnsafe"                                                                                 -1.65 %            8.510120e-02
 buffers\\buffer-creation.js n=1024 len=1024 type="slow-allocUnsafe"                                                                                 10.84 %        *** 2.302591e-14
 buffers\\buffer-creation.js n=1024 len=1024 type="slow"                                                                                             11.07 %        *** 5.350467e-17
 buffers\\buffer-creation.js n=1024 len=2048 type="buffer()"                                                                                         -1.89 %            7.896093e-02
 buffers\\buffer-creation.js n=1024 len=2048 type="fast-alloc-fill"                                                                                   5.82 %        *** 1.278769e-06
 buffers\\buffer-creation.js n=1024 len=2048 type="fast-alloc"                                                                                        0.56 %            6.263182e-01
 buffers\\buffer-creation.js n=1024 len=2048 type="fast-allocUnsafe"                                                                                 -0.13 %            8.992751e-01
 buffers\\buffer-creation.js n=1024 len=2048 type="slow-allocUnsafe"                                                                                  7.31 %        *** 4.140525e-09
 buffers\\buffer-creation.js n=1024 len=2048 type="slow"                                                                                              7.26 %        *** 1.368239e-08
 buffers\\buffer-creation.js n=1024 len=4096 type="buffer()"                                                                                          6.40 %        *** 1.419849e-07
 buffers\\buffer-creation.js n=1024 len=4096 type="fast-alloc-fill"                                                                                   3.58 %         ** 4.131086e-03
 buffers\\buffer-creation.js n=1024 len=4096 type="fast-alloc"                                                                                        0.23 %            8.587182e-01
 buffers\\buffer-creation.js n=1024 len=4096 type="fast-allocUnsafe"                                                                                  5.57 %        *** 1.204951e-04
 buffers\\buffer-creation.js n=1024 len=4096 type="slow-allocUnsafe"                                                                                  4.85 %        *** 3.717312e-05
 buffers\\buffer-creation.js n=1024 len=4096 type="slow"                                                                                              5.49 %        *** 2.288046e-06
 buffers\\buffer-creation.js n=1024 len=8192 type="buffer()"                                                                                          7.39 %        *** 1.701336e-07
 buffers\\buffer-creation.js n=1024 len=8192 type="fast-alloc-fill"                                                                                   4.18 %         ** 2.611444e-03
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 buffers\\buffer-read.js millions=1 type="FloatBE" buffer="fast" noAssert="true"                                                                    -37.52 %        *** 4.027095e-77
 buffers\\buffer-read.js millions=1 type="FloatBE" buffer="slow" noAssert="false"                                                                   -36.55 %        *** 1.428981e-66
 buffers\\buffer-read.js millions=1 type="FloatBE" buffer="slow" noAssert="true"                                                                    -37.41 %        *** 2.018451e-76
 buffers\\buffer-read.js millions=1 type="FloatLE" buffer="fast" noAssert="false"                                                                   -38.29 %        *** 4.356237e-53
 buffers\\buffer-read.js millions=1 type="FloatLE" buffer="fast" noAssert="true"                                                                    -40.63 %        *** 5.012620e-81
 buffers\\buffer-read.js millions=1 type="FloatLE" buffer="slow" noAssert="false"                                                                   -38.80 %        *** 3.198838e-55
 buffers\\buffer-read.js millions=1 type="FloatLE" buffer="slow" noAssert="true"                                                                    -40.26 %        *** 7.326122e-70
 buffers\\buffer-read.js millions=1 type="Int16BE" buffer="fast" noAssert="false"                                                                    19.06 %        *** 1.403670e-30
 buffers\\buffer-read.js millions=1 type="Int16BE" buffer="fast" noAssert="true"                                                                    -27.04 %        *** 2.933201e-43
 buffers\\buffer-read.js millions=1 type="Int16BE" buffer="slow" noAssert="false"                                                                    18.64 %        *** 1.137060e-36
 buffers\\buffer-read.js millions=1 type="Int16BE" buffer="slow" noAssert="true"                                                                    -27.24 %        *** 1.160528e-32
 buffers\\buffer-read.js millions=1 type="Int16LE" buffer="fast" noAssert="false"                                                                    19.66 %        *** 1.784479e-29
 buffers\\buffer-read.js millions=1 type="Int16LE" buffer="fast" noAssert="true"                                                                    -27.80 %        *** 1.643164e-42
 buffers\\buffer-read.js millions=1 type="Int16LE" buffer="slow" noAssert="false"                                                                    18.40 %        *** 7.945532e-36
 buffers\\buffer-read.js millions=1 type="Int16LE" buffer="slow" noAssert="true"                                                                    -26.02 %        *** 4.235541e-26
 buffers\\buffer-read.js millions=1 type="Int32BE" buffer="fast" noAssert="false"                                                                    -1.19 %            3.034823e-01
 buffers\\buffer-read.js millions=1 type="Int32BE" buffer="fast" noAssert="true"                                                                    -47.40 %        *** 1.243172e-43
 buffers\\buffer-read.js millions=1 type="Int32BE" buffer="slow" noAssert="false"                                                                     0.81 %            2.872066e-01
 buffers\\buffer-read.js millions=1 type="Int32BE" buffer="slow" noAssert="true"                                                                    -47.13 %        *** 9.286128e-28
 buffers\\buffer-read.js millions=1 type="Int32LE" buffer="fast" noAssert="false"                                                                     2.62 %         ** 6.505751e-03
 buffers\\buffer-read.js millions=1 type="Int32LE" buffer="fast" noAssert="true"                                                                    -42.77 %        *** 9.960392e-42
 buffers\\buffer-read.js millions=1 type="Int32LE" buffer="slow" noAssert="false"                                                                     2.59 %        *** 3.431484e-05
 buffers\\buffer-read.js millions=1 type="Int32LE" buffer="slow" noAssert="true"                                                                    -42.23 %        *** 2.721267e-36
 buffers\\buffer-read.js millions=1 type="Int8" buffer="fast" noAssert="false"                                                                       14.11 %        *** 1.021695e-36
 buffers\\buffer-read.js millions=1 type="Int8" buffer="fast" noAssert="true"                                                                       -26.83 %        *** 1.598243e-41
 buffers\\buffer-read.js millions=1 type="Int8" buffer="slow" noAssert="false"                                                                       13.58 %        *** 4.622852e-34
 buffers\\buffer-read.js millions=1 type="Int8" buffer="slow" noAssert="true"                                                                       -26.74 %        *** 3.749623e-44
 buffers\\buffer-read.js millions=1 type="UInt16BE" buffer="fast" noAssert="false"                                                                    4.00 %        *** 9.770175e-10
 buffers\\buffer-read.js millions=1 type="UInt16BE" buffer="fast" noAssert="true"                                                                   -43.99 %        *** 2.389208e-53
 buffers\\buffer-read.js millions=1 type="UInt16BE" buffer="slow" noAssert="false"                                                                    3.02 %        *** 2.438014e-11
 buffers\\buffer-read.js millions=1 type="UInt16BE" buffer="slow" noAssert="true"                                                                   -43.48 %        *** 1.778761e-52
 buffers\\buffer-read.js millions=1 type="UInt16LE" buffer="fast" noAssert="false"                                                                    7.27 %        *** 7.607707e-19
 buffers\\buffer-read.js millions=1 type="UInt16LE" buffer="fast" noAssert="true"                                                                   -37.75 %        *** 1.282249e-42
 buffers\\buffer-read.js millions=1 type="UInt16LE" buffer="slow" noAssert="false"                                                                    6.32 %        *** 1.510428e-13
 buffers\\buffer-read.js millions=1 type="UInt16LE" buffer="slow" noAssert="true"                                                                   -39.37 %        *** 1.188848e-49
 buffers\\buffer-read.js millions=1 type="UInt32BE" buffer="fast" noAssert="false"                                                                   -6.57 %        *** 2.519559e-15
 buffers\\buffer-read.js millions=1 type="UInt32BE" buffer="fast" noAssert="true"                                                                   -50.93 %        *** 1.031245e-44
 buffers\\buffer-read.js millions=1 type="UInt32BE" buffer="slow" noAssert="false"                                                                   -7.23 %        *** 5.927445e-26
 buffers\\buffer-read.js millions=1 type="UInt32BE" buffer="slow" noAssert="true"                                                                   -51.02 %        *** 4.138643e-51
 buffers\\buffer-read.js millions=1 type="UInt32LE" buffer="fast" noAssert="false"                                                                   -4.94 %        *** 1.291956e-09
 buffers\\buffer-read.js millions=1 type="UInt32LE" buffer="fast" noAssert="true"                                                                   -49.31 %        *** 2.610133e-49
 buffers\\buffer-read.js millions=1 type="UInt32LE" buffer="slow" noAssert="false"                                                                   -5.06 %        *** 8.029210e-16
 buffers\\buffer-read.js millions=1 type="UInt32LE" buffer="slow" noAssert="true"                                                                   -48.99 %        *** 3.672503e-40
 buffers\\buffer-read.js millions=1 type="UInt8" buffer="fast" noAssert="false"                                                                     -13.40 %        *** 8.950667e-29
 buffers\\buffer-read.js millions=1 type="UInt8" buffer="fast" noAssert="true"                                                                      -54.61 %        *** 4.233053e-39
 buffers\\buffer-read.js millions=1 type="UInt8" buffer="slow" noAssert="false"                                                                     -12.84 %        *** 6.666907e-28
 buffers\\buffer-read.js millions=1 type="UInt8" buffer="slow" noAssert="true"                                                                      -54.34 %        *** 2.847385e-36
 buffers\\buffer-slice.js n=1024 type="fast"                                                                                                         18.66 %        *** 4.017939e-23
 buffers\\buffer-slice.js n=1024 type="slow"                                                                                                         18.22 %        *** 5.380341e-28
 buffers\\buffer-tojson.js len=0 n=10000                                                                                                            -29.94 %        *** 2.279781e-35
 buffers\\buffer-tojson.js len=10 n=10000                                                                                                           -50.51 %        *** 4.138969e-30
 buffers\\buffer-tojson.js len=256 n=10000                                                                                                           -6.61 %        *** 1.909075e-12
 buffers\\buffer-tojson.js len=4096 n=10000                                                                                                           0.61 %            3.305055e-01
 buffers\\buffer-tostring.js n=10000000 len=0 arg="false"                                                                                           -45.06 %        *** 1.052493e-64
 buffers\\buffer-tostring.js n=10000000 len=0 arg="true"                                                                                            141.33 %        *** 2.570761e-49
 buffers\\buffer-tostring.js n=10000000 len=1 arg="false"                                                                                           -29.80 %        *** 1.295265e-36
 buffers\\buffer-tostring.js n=10000000 len=1 arg="true"                                                                                            -23.91 %        *** 5.613356e-50
 buffers\\buffer-tostring.js n=10000000 len=1024 arg="false"                                                                                        -11.89 %        *** 1.852139e-43
 buffers\\buffer-tostring.js n=10000000 len=1024 arg="true"                                                                                          -7.67 %        *** 1.280761e-22
 buffers\\buffer-tostring.js n=10000000 len=64 arg="false"                                                                                          -32.36 %        *** 3.080627e-63
 buffers\\buffer-tostring.js n=10000000 len=64 arg="true"                                                                                           -23.21 %        *** 1.418203e-37
 buffers\\buffer-write.js millions=1 type="DoubleBE" buffer="fast" noAssert="false"                                                                 -43.56 %        *** 1.585645e-31
 buffers\\buffer-write.js millions=1 type="DoubleBE" buffer="fast" noAssert="true"                                                                  -44.91 %        *** 3.569385e-44
 buffers\\buffer-write.js millions=1 type="DoubleBE" buffer="slow" noAssert="false"                                                                 -44.11 %        *** 1.041960e-42
 buffers\\buffer-write.js millions=1 type="DoubleBE" buffer="slow" noAssert="true"                                                                  -43.94 %        *** 1.257416e-34
 buffers\\buffer-write.js millions=1 type="DoubleLE" buffer="fast" noAssert="false"                                                                 -39.65 %        *** 1.140142e-82
 buffers\\buffer-write.js millions=1 type="DoubleLE" buffer="fast" noAssert="true"                                                                  -42.72 %        *** 1.151006e-80
 buffers\\buffer-write.js millions=1 type="DoubleLE" buffer="slow" noAssert="false"                                                                 -39.74 %        *** 3.682974e-75
 buffers\\buffer-write.js millions=1 type="DoubleLE" buffer="slow" noAssert="true"                                                                  -42.39 %        *** 1.113374e-74
 buffers\\buffer-write.js millions=1 type="FloatBE" buffer="fast" noAssert="false"                                                                  -41.31 %        *** 8.648892e-40
 buffers\\buffer-write.js millions=1 type="FloatBE" buffer="fast" noAssert="true"                                                                   -41.94 %        *** 1.885928e-37
 buffers\\buffer-write.js millions=1 type="FloatBE" buffer="slow" noAssert="false"                                                                  -40.38 %        *** 6.572863e-39
 buffers\\buffer-write.js millions=1 type="FloatBE" buffer="slow" noAssert="true"                                                                   -44.10 %        *** 7.293289e-41
 buffers\\buffer-write.js millions=1 type="FloatLE" buffer="fast" noAssert="false"                                                                  -40.11 %        *** 1.285867e-38
 buffers\\buffer-write.js millions=1 type="FloatLE" buffer="fast" noAssert="true"                                                                   -41.97 %        *** 3.338780e-27
 buffers\\buffer-write.js millions=1 type="FloatLE" buffer="slow" noAssert="false"                                                                  -40.85 %        *** 1.234396e-37
 buffers\\buffer-write.js millions=1 type="FloatLE" buffer="slow" noAssert="true"                                                                   -42.77 %        *** 8.299756e-37
 buffers\\buffer-write.js millions=1 type="Int16BE" buffer="fast" noAssert="false"                                                                   12.51 %        *** 1.082288e-32
 buffers\\buffer-write.js millions=1 type="Int16BE" buffer="fast" noAssert="true"                                                                   -38.73 %        *** 3.306965e-39
 buffers\\buffer-write.js millions=1 type="Int16BE" buffer="slow" noAssert="false"                                                                   12.64 %        *** 5.858414e-26
 buffers\\buffer-write.js millions=1 type="Int16BE" buffer="slow" noAssert="true"                                                                   -38.80 %        *** 2.644936e-46
 buffers\\buffer-write.js millions=1 type="Int16LE" buffer="fast" noAssert="false"                                                                   13.20 %        *** 3.046712e-36
 buffers\\buffer-write.js millions=1 type="Int16LE" buffer="fast" noAssert="true"                                                                   -42.88 %        *** 2.418837e-43
 buffers\\buffer-write.js millions=1 type="Int16LE" buffer="slow" noAssert="false"                                                                   13.35 %        *** 5.381653e-33
 buffers\\buffer-write.js millions=1 type="Int16LE" buffer="slow" noAssert="true"                                                                   -43.64 %        *** 2.124825e-56
 buffers\\buffer-write.js millions=1 type="Int32BE" buffer="fast" noAssert="false"                                                                    0.68 %            1.443934e-01
 buffers\\buffer-write.js millions=1 type="Int32BE" buffer="fast" noAssert="true"                                                                   -39.90 %        *** 7.142140e-40
 buffers\\buffer-write.js millions=1 type="Int32BE" buffer="slow" noAssert="false"                                                                    1.64 %        *** 2.493676e-06
 buffers\\buffer-write.js millions=1 type="Int32BE" buffer="slow" noAssert="true"                                                                   -40.22 %        *** 5.057077e-47
 buffers\\buffer-write.js millions=1 type="Int32LE" buffer="fast" noAssert="false"                                                                    2.51 %        *** 4.209786e-08
 buffers\\buffer-write.js millions=1 type="Int32LE" buffer="fast" noAssert="true"                                                                   -44.77 %        *** 7.731343e-32
 buffers\\buffer-write.js millions=1 type="Int32LE" buffer="slow" noAssert="false"                                                                    1.90 %        *** 6.013827e-09
 buffers\\buffer-write.js millions=1 type="Int32LE" buffer="slow" noAssert="true"                                                                   -44.69 %        *** 1.473504e-38
 buffers\\buffer-write.js millions=1 type="Int8" buffer="fast" noAssert="false"                                                                       8.96 %        *** 1.390186e-25
 buffers\\buffer-write.js millions=1 type="Int8" buffer="fast" noAssert="true"                                                                      -43.46 %        *** 6.151087e-60
 buffers\\buffer-write.js millions=1 type="Int8" buffer="slow" noAssert="false"                                                                       8.77 %        *** 3.912871e-31
 buffers\\buffer-write.js millions=1 type="Int8" buffer="slow" noAssert="true"                                                                      -42.49 %        *** 4.625293e-20
 buffers\\buffer-write.js millions=1 type="UInt16BE" buffer="fast" noAssert="false"                                                                  15.93 %        *** 1.920343e-40
 buffers\\buffer-write.js millions=1 type="UInt16BE" buffer="fast" noAssert="true"                                                                  -37.95 %        *** 2.985032e-28
 buffers\\buffer-write.js millions=1 type="UInt16BE" buffer="slow" noAssert="false"                                                                  15.93 %        *** 1.402500e-43
 buffers\\buffer-write.js millions=1 type="UInt16BE" buffer="slow" noAssert="true"                                                                  -38.79 %        *** 1.025692e-57
 buffers\\buffer-write.js millions=1 type="UInt16LE" buffer="fast" noAssert="false"                                                                  12.50 %        *** 2.898478e-33
 buffers\\buffer-write.js millions=1 type="UInt16LE" buffer="fast" noAssert="true"                                                                  -43.70 %        *** 2.854414e-55
 buffers\\buffer-write.js millions=1 type="UInt16LE" buffer="slow" noAssert="false"                                                                  12.86 %        *** 6.317302e-42
 buffers\\buffer-write.js millions=1 type="UInt16LE" buffer="slow" noAssert="true"                                                                  -43.15 %        *** 4.572356e-42
 buffers\\buffer-write.js millions=1 type="UInt32BE" buffer="fast" noAssert="false"                                                                   5.89 %        *** 1.182524e-25
 buffers\\buffer-write.js millions=1 type="UInt32BE" buffer="fast" noAssert="true"                                                                  -40.05 %        *** 1.608055e-52
 buffers\\buffer-write.js millions=1 type="UInt32BE" buffer="slow" noAssert="false"                                                                   5.68 %        *** 2.005348e-24
 buffers\\buffer-write.js millions=1 type="UInt32BE" buffer="slow" noAssert="true"                                                                  -40.09 %        *** 2.130559e-44
 buffers\\buffer-write.js millions=1 type="UInt32LE" buffer="fast" noAssert="false"                                                                   5.20 %        *** 3.130693e-19
 buffers\\buffer-write.js millions=1 type="UInt32LE" buffer="fast" noAssert="true"                                                                  -40.95 %        *** 4.726284e-60
 buffers\\buffer-write.js millions=1 type="UInt32LE" buffer="slow" noAssert="false"                                                                   5.93 %        *** 2.668763e-20
 buffers\\buffer-write.js millions=1 type="UInt32LE" buffer="slow" noAssert="true"                                                                  -40.30 %        *** 1.091369e-32
 buffers\\buffer-write.js millions=1 type="UInt8" buffer="fast" noAssert="false"                                                                      8.60 %        *** 2.492144e-29
 buffers\\buffer-write.js millions=1 type="UInt8" buffer="fast" noAssert="true"                                                                     -41.73 %        *** 1.405204e-31
 buffers\\buffer-write.js millions=1 type="UInt8" buffer="slow" noAssert="false"                                                                      9.32 %        *** 4.601417e-22
 buffers\\buffer-write.js millions=1 type="UInt8" buffer="slow" noAssert="true"                                                                     -42.55 %        *** 2.019819e-31
 buffers\\buffer_zero.js type="buffer" n=1024                                                                                                         2.44 %        *** 3.511559e-04
 buffers\\buffer_zero.js type="string" n=1024                                                                                                         8.90 %        *** 1.325879e-13
 buffers\\dataview-set.js millions=1 type="Float32BE"                                                                                                -4.65 %        *** 1.682569e-11
 buffers\\dataview-set.js millions=1 type="Float32LE"                                                                                                -6.15 %        *** 1.081206e-21
 buffers\\dataview-set.js millions=1 type="Float64BE"                                                                                                -6.72 %        *** 5.129692e-21
 buffers\\dataview-set.js millions=1 type="Float64LE"                                                                                                -7.83 %        *** 4.473849e-17
 buffers\\dataview-set.js millions=1 type="Int16BE"                                                                                                  -4.64 %         ** 1.451298e-03
 buffers\\dataview-set.js millions=1 type="Int16LE"                                                                                                  -3.09 %        *** 4.174781e-04
 buffers\\dataview-set.js millions=1 type="Int32BE"                                                                                                  -3.69 %         ** 1.222692e-03
 buffers\\dataview-set.js millions=1 type="Int32LE"                                                                                                  -5.41 %        *** 6.345715e-07
 buffers\\dataview-set.js millions=1 type="Int8"                                                                                                     -6.33 %        *** 1.863074e-07
 buffers\\dataview-set.js millions=1 type="Uint16BE"                                                                                                 -7.71 %        *** 4.916663e-08
 buffers\\dataview-set.js millions=1 type="Uint16LE"                                                                                                 -9.33 %        *** 2.014695e-15
 buffers\\dataview-set.js millions=1 type="Uint32BE"                                                                                                 29.27 %        *** 6.652924e-54
 buffers\\dataview-set.js millions=1 type="Uint32LE"                                                                                                 33.39 %        *** 8.781109e-55
 buffers\\dataview-set.js millions=1 type="Uint8"                                                                                                    -4.19 %        *** 2.561106e-04

A gist with the same data.

[mscdex]

@vsemozhetbyt You can reduce the iteration count n (and/or the number of runs if the results don't seem to vary too wildly) if a single run takes too long. I would make sure a single run executes for at least 5-10 seconds or so to give V8 plenty of time to properly optimize code and whatnot.

[vsemozhetbyt]

@mscdex If I get it right, the problem is that a nominal 'one run', as the progress bar and the compare.js have it, includes many real runs with different config variants, from 2 up to more than 100. These real runs can last a very different amount of time with the same n parameter, from a second up to several minutes. If we try to keep all these real runs near at least 5-10 seconds, the real runs with maximum time span get a huge time span.

For example, I've reduced n for buffer-swap.js from 5e7 to 1e6. The whole set of 60 nominal runs has lasted ~ 3 hours, with one nominal run ~ 3 min. This benchmark has 66 config variants, some of them have lasted near 1 second, some of them have lasted near 15-20 seconds. To balance these cases, the n should be changed separately and conditionally for each config variant. Unfortunately, this can be achieved either by editing the code or by many complicated CLI arguments sets and separate runs.

[vsemozhetbyt]

buffer-swap.js with --set n=1e6:

                                                                            improvement confidence      p.value
 buffers\\buffer-swap.js n=1000000 len=1024 method="swap16" aligned="false"      0.36 %        *** 6.076393e-18
 buffers\\buffer-swap.js n=1000000 len=1024 method="swap16" aligned="true"       1.10 %        *** 1.359542e-22
 buffers\\buffer-swap.js n=1000000 len=1024 method="swap32" aligned="false"      0.07 %            1.796922e-01
 buffers\\buffer-swap.js n=1000000 len=1024 method="swap32" aligned="true"       0.22 %          * 1.744881e-02
 buffers\\buffer-swap.js n=1000000 len=1024 method="swap64" aligned="false"      0.24 %        *** 1.566726e-07
 buffers\\buffer-swap.js n=1000000 len=1024 method="swap64" aligned="true"      -0.04 %            7.858086e-01
 buffers\\buffer-swap.js n=1000000 len=128 method="swap16" aligned="false"       1.96 %        *** 2.119761e-08
 buffers\\buffer-swap.js n=1000000 len=128 method="swap16" aligned="true"        3.60 %        *** 8.102858e-24
 buffers\\buffer-swap.js n=1000000 len=128 method="swap32" aligned="false"     -25.83 %        *** 2.334289e-88
 buffers\\buffer-swap.js n=1000000 len=128 method="swap32" aligned="true"      -28.18 %        *** 9.633524e-92
 buffers\\buffer-swap.js n=1000000 len=128 method="swap64" aligned="false"     -32.50 %        *** 2.203248e-71
 buffers\\buffer-swap.js n=1000000 len=128 method="swap64" aligned="true"      -29.72 %        *** 5.921971e-96
 buffers\\buffer-swap.js n=1000000 len=1536 method="swap16" aligned="false"      0.21 %        *** 2.326170e-04
 buffers\\buffer-swap.js n=1000000 len=1536 method="swap16" aligned="true"       0.92 %        *** 2.883013e-20
 buffers\\buffer-swap.js n=1000000 len=1536 method="swap32" aligned="false"      0.10 %        *** 8.005634e-06
 buffers\\buffer-swap.js n=1000000 len=1536 method="swap32" aligned="true"       0.14 %            7.896609e-02
 buffers\\buffer-swap.js n=1000000 len=1536 method="swap64" aligned="false"      0.09 %            9.037307e-02
 buffers\\buffer-swap.js n=1000000 len=1536 method="swap64" aligned="true"       0.21 %            3.514098e-01
 buffers\\buffer-swap.js n=1000000 len=2056 method="swap16" aligned="false"      0.17 %        *** 3.248787e-04
 buffers\\buffer-swap.js n=1000000 len=2056 method="swap16" aligned="true"       0.55 %        *** 1.625691e-10
 buffers\\buffer-swap.js n=1000000 len=2056 method="swap32" aligned="false"      0.02 %            1.648908e-01
 buffers\\buffer-swap.js n=1000000 len=2056 method="swap32" aligned="true"       0.13 %          * 3.592004e-02
 buffers\\buffer-swap.js n=1000000 len=2056 method="swap64" aligned="false"     -0.08 %            1.680445e-01
 buffers\\buffer-swap.js n=1000000 len=2056 method="swap64" aligned="true"       0.13 %            8.412957e-02
 buffers\\buffer-swap.js n=1000000 len=256 method="swap16" aligned="false"       1.14 %        *** 2.298617e-15
 buffers\\buffer-swap.js n=1000000 len=256 method="swap16" aligned="true"        2.35 %        *** 8.848386e-23
 buffers\\buffer-swap.js n=1000000 len=256 method="swap32" aligned="false"       0.51 %          * 2.855728e-02
 buffers\\buffer-swap.js n=1000000 len=256 method="swap32" aligned="true"        0.31 %          * 4.837458e-02
 buffers\\buffer-swap.js n=1000000 len=256 method="swap64" aligned="false"       0.70 %        *** 1.187119e-10
 buffers\\buffer-swap.js n=1000000 len=256 method="swap64" aligned="true"        0.03 %            8.377633e-01
 buffers\\buffer-swap.js n=1000000 len=4096 method="swap16" aligned="false"      0.03 %            2.168347e-01
 buffers\\buffer-swap.js n=1000000 len=4096 method="swap16" aligned="true"       0.27 %        *** 5.990335e-08
 buffers\\buffer-swap.js n=1000000 len=4096 method="swap32" aligned="false"      0.03 %            3.267018e-01
 buffers\\buffer-swap.js n=1000000 len=4096 method="swap32" aligned="true"      -0.05 %            7.015377e-01
 buffers\\buffer-swap.js n=1000000 len=4096 method="swap64" aligned="false"     -0.23 %            1.504769e-01
 buffers\\buffer-swap.js n=1000000 len=4096 method="swap64" aligned="true"      -0.18 %            7.870197e-02
 buffers\\buffer-swap.js n=1000000 len=512 method="swap16" aligned="false"       0.57 %        *** 4.245723e-15
 buffers\\buffer-swap.js n=1000000 len=512 method="swap16" aligned="true"        1.80 %        *** 3.992138e-20
 buffers\\buffer-swap.js n=1000000 len=512 method="swap32" aligned="false"       0.35 %        *** 6.259493e-09
 buffers\\buffer-swap.js n=1000000 len=512 method="swap32" aligned="true"        0.42 %         ** 1.212643e-03
 buffers\\buffer-swap.js n=1000000 len=512 method="swap64" aligned="false"       0.52 %        *** 2.336598e-16
 buffers\\buffer-swap.js n=1000000 len=512 method="swap64" aligned="true"       -0.04 %            7.897691e-01
 buffers\\buffer-swap.js n=1000000 len=64 method="swap16" aligned="false"      -11.63 %        *** 1.715831e-70
 buffers\\buffer-swap.js n=1000000 len=64 method="swap16" aligned="true"       -11.28 %        *** 2.934296e-46
 buffers\\buffer-swap.js n=1000000 len=64 method="swap32" aligned="false"      -22.73 %        *** 6.453671e-79
 buffers\\buffer-swap.js n=1000000 len=64 method="swap32" aligned="true"       -23.37 %        *** 3.179763e-71
 buffers\\buffer-swap.js n=1000000 len=64 method="swap64" aligned="false"      -26.91 %        *** 1.133643e-31
 buffers\\buffer-swap.js n=1000000 len=64 method="swap64" aligned="true"       -24.71 %        *** 1.203672e-29
 buffers\\buffer-swap.js n=1000000 len=768 method="swap16" aligned="false"       0.38 %        *** 5.071203e-12
 buffers\\buffer-swap.js n=1000000 len=768 method="swap16" aligned="true"        1.18 %        *** 2.312994e-23
 buffers\\buffer-swap.js n=1000000 len=768 method="swap32" aligned="false"       0.17 %         ** 2.755085e-03
 buffers\\buffer-swap.js n=1000000 len=768 method="swap32" aligned="true"        0.13 %            3.430058e-01
 buffers\\buffer-swap.js n=1000000 len=768 method="swap64" aligned="false"       0.44 %        *** 4.743284e-04
 buffers\\buffer-swap.js n=1000000 len=768 method="swap64" aligned="true"       -0.03 %            8.388090e-01
 buffers\\buffer-swap.js n=1000000 len=8 method="swap16" aligned="false"         6.06 %        *** 2.951182e-30
 buffers\\buffer-swap.js n=1000000 len=8 method="swap16" aligned="true"          5.74 %        *** 3.316930e-21
 buffers\\buffer-swap.js n=1000000 len=8 method="swap32" aligned="false"         3.50 %        *** 1.244331e-22
 buffers\\buffer-swap.js n=1000000 len=8 method="swap32" aligned="true"          1.72 %        *** 1.879290e-11
 buffers\\buffer-swap.js n=1000000 len=8 method="swap64" aligned="false"         0.68 %          * 3.477764e-02
 buffers\\buffer-swap.js n=1000000 len=8 method="swap64" aligned="true"          0.10 %            8.185927e-01
 buffers\\buffer-swap.js n=1000000 len=8192 method="swap16" aligned="false"      0.02 %            1.425613e-01
 buffers\\buffer-swap.js n=1000000 len=8192 method="swap16" aligned="true"       0.18 %        *** 1.916646e-08
 buffers\\buffer-swap.js n=1000000 len=8192 method="swap32" aligned="false"     -0.02 %            2.420096e-01
 buffers\\buffer-swap.js n=1000000 len=8192 method="swap32" aligned="true"       0.11 %          * 2.388254e-02
 buffers\\buffer-swap.js n=1000000 len=8192 method="swap64" aligned="false"     -0.17 %         ** 3.838764e-03
 buffers\\buffer-swap.js n=1000000 len=8192 method="swap64" aligned="true"       0.02 %            6.347701e-01

[vsemozhetbyt]

child_process:

                                                                                  improvement confidence      p.value
 child_process\\child-process-exec-stdout.js dur=5 len=1024                           -0.90 %            4.373815e-01
 child_process\\child-process-exec-stdout.js dur=5 len=256                             0.23 %            8.935467e-01
 child_process\\child-process-exec-stdout.js dur=5 len=4096                            0.62 %            6.591330e-01
 child_process\\child-process-exec-stdout.js dur=5 len=64                             -1.87 %            3.482599e-01
 child_process\\child-process-params.js params=1 methodName="exec" n=1000             -4.63 %        *** 5.123714e-11
 child_process\\child-process-params.js params=1 methodName="execFile" n=1000         -3.92 %        *** 2.644723e-12
 child_process\\child-process-params.js params=1 methodName="execFileSync" n=1000     -0.28 %            7.107140e-01
 child_process\\child-process-params.js params=1 methodName="execSync" n=1000         -0.21 %            4.051633e-01
 child_process\\child-process-params.js params=1 methodName="spawn" n=1000            -4.01 %        *** 1.536730e-14
 child_process\\child-process-params.js params=1 methodName="spawnSync" n=1000        -0.22 %            7.796821e-01
 child_process\\child-process-params.js params=2 methodName="exec" n=1000             -4.42 %        *** 5.623094e-16
 child_process\\child-process-params.js params=2 methodName="execFile" n=1000         -3.40 %        *** 1.986012e-09
 child_process\\child-process-params.js params=2 methodName="execFileSync" n=1000      0.07 %            9.104965e-01
 child_process\\child-process-params.js params=2 methodName="execSync" n=1000         -0.09 %            4.823520e-01
 child_process\\child-process-params.js params=2 methodName="spawn" n=1000            -3.98 %        *** 7.050357e-13
 child_process\\child-process-params.js params=2 methodName="spawnSync" n=1000         1.04 %            2.596032e-01
 child_process\\child-process-params.js params=3 methodName="exec" n=1000             -5.15 %        *** 4.912272e-15
 child_process\\child-process-params.js params=3 methodName="execFile" n=1000         -4.78 %        *** 2.814372e-17
 child_process\\child-process-params.js params=3 methodName="execFileSync" n=1000      0.06 %            9.181210e-01
 child_process\\child-process-params.js params=3 methodName="spawn" n=1000            -3.86 %        *** 1.507486e-10
 child_process\\child-process-params.js params=3 methodName="spawnSync" n=1000         1.02 %            2.644717e-01
 child_process\\child-process-params.js params=4 methodName="execFile" n=1000         -3.90 %        *** 7.927832e-17
 child_process\\child-process-read-ipc.js dur=5 len=1024                              -0.02 %            9.396622e-01
 child_process\\child-process-read-ipc.js dur=5 len=1048576                            1.03 %          * 3.282735e-02
 child_process\\child-process-read-ipc.js dur=5 len=16384                             -0.27 %        *** 5.423084e-04
 child_process\\child-process-read-ipc.js dur=5 len=16777216                           0.26 %            2.500390e-01
 child_process\\child-process-read-ipc.js dur=5 len=256                               -0.70 %        *** 7.789173e-04
 child_process\\child-process-read-ipc.js dur=5 len=4096                              -0.21 %            9.370554e-02
 child_process\\child-process-read-ipc.js dur=5 len=64                                -0.68 %         ** 2.257675e-03
 child_process\\child-process-read-ipc.js dur=5 len=65536                              0.91 %        *** 3.971267e-04
 child_process\\child-process-read.js dur=5 len=1024                                   0.83 %         ** 1.021766e-03
 child_process\\child-process-read.js dur=5 len=256                                   -1.70 %            4.431098e-01
 child_process\\child-process-read.js dur=5 len=4096                                  -0.54 %            5.921539e-01
 child_process\\child-process-read.js dur=5 len=64                                     0.84 %        *** 6.748565e-05
 child_process\\spawn-echo.js thousands=1                                             -0.68 %            3.306275e-01

[mscdex]

@vsemozhetbyt Yep, benchmarking isn't always easy :-) Explicitly passing a lower --runs value may help as previously noted, especially for benchmarks that don't involve I/O and thus are usually less volatile.

[targos]

streams:

                                          improvement confidence      p.value
 streams/readable-bigread.js n=1000          -10.73 %        *** 1.269154e-12
 streams/readable-bigunevenread.js n=1000    -13.88 %        *** 1.834009e-19
 streams/readable-boundaryread.js n=2000     -13.83 %        *** 4.606770e-10
 streams/readable-readall.js n=5000           -9.64 %        *** 3.697793e-25
 streams/readable-unevenread.js n=1000        -8.92 %        *** 8.211917e-14
 streams/writable-manywrites.js n=2000000    -22.36 %        *** 9.987796e-27

[targos]

Example output with --trace-opt --trace-deopt on streams/readable-bigread.js

node-tf:

[marking 0x364ce29371d9 <JSFunction BufferList.push (sfi = 0x364ce2936791)> for optimized recompilation, reason: small function, ICs with typeinfo: 9/10 (90%), generic ICs: 0/10 (0%)]
[compiling method 0x364ce29371d9 <JSFunction BufferList.push (sfi = 0x364ce2936791)> using TurboFan]
[marking 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 21/52 (40%), generic ICs: 0/52 (0%)]
[compiling method 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)> using TurboFan]
[optimizing 0x364ce29371d9 <JSFunction BufferList.push (sfi = 0x364ce2936791)> - took 0.148, 0.397, 0.071 ms]
[completed optimizing 0x364ce29371d9 <JSFunction BufferList.push (sfi = 0x364ce2936791)>]
[marking 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)> for optimized recompilation, reason: small function, ICs with typeinfo: 7/7 (100%), generic ICs: 0/7 (0%)]
[compiling method 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)> using TurboFan]
[optimizing 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)> - took 0.068, 0.349, 0.036 ms]
[completed optimizing 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)>]
[optimizing 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)> - took 0.668, 3.108, 0.229 ms]
[completed optimizing 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)>]
[marking 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 30/38 (78%), generic ICs: 0/38 (0%)]
[compiling method 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> using TurboFan]
[marking 0x18b2b54db1b1 <JSFunction Buffer.copy (sfi = 0x18b2b54cc869)> for optimized recompilation, reason: small function, ICs with typeinfo: 2/2 (100%), generic ICs: 0/2 (0%)]
[compiling method 0x18b2b54db1b1 <JSFunction Buffer.copy (sfi = 0x18b2b54cc869)> using TurboFan]
[optimizing 0x18b2b54db1b1 <JSFunction Buffer.copy (sfi = 0x18b2b54cc869)> - took 0.079, 0.145, 0.022 ms]
[completed optimizing 0x18b2b54db1b1 <JSFunction Buffer.copy (sfi = 0x18b2b54cc869)>]
[optimizing 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> - took 0.769, 2.125, 0.191 ms]
[completed optimizing 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>]
[marking 0x364ce29373f1 <JSFunction Readable.push (sfi = 0x364ce29349c9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 4/9 (44%), generic ICs: 0/9 (0%)]
[compiling method 0x364ce29373f1 <JSFunction Readable.push (sfi = 0x364ce29349c9)> using TurboFan]
[optimizing 0x364ce29373f1 <JSFunction Readable.push (sfi = 0x364ce29349c9)> - took 0.083, 0.296, 0.023 ms]
[completed optimizing 0x364ce29373f1 <JSFunction Readable.push (sfi = 0x364ce29349c9)>]
[marking 0x19f9ce582699 <JSFunction main (sfi = 0xec00c8df6e1)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 13/18 (72%), generic ICs: 0/18 (0%)]
[deoptimizing (DEOPT eager): begin 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> (opt #3) @15, FP to SP delta: 88, caller sp: 0x7ffd8f45f608]
            ;;; deoptimize at <buffer.js:209:26> inlined at <buffer.js:178:10> inlined at <_stream_readable.js:943:22>, not a Smi
  reading input frame copyFromBuffer => bytecode_offset=25, args=3, height=12; inputs:
      0: 0xec00c8a5ec9 ; [fp - 16] 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>
      1: 0x2a2af9902311 ; [fp + 32] 0x2a2af9902311 <undefined>
      2: 0x8000000000 ; [fp + 24] 128
      3: 0x19f9ce582369 ; [fp + 16] 0x19f9ce582369 <BufferList map = 0x1558bcd39eb9>
      4: 0x35ef1a1ec031 ; [fp - 8] 0x35ef1a1ec031 <FixedArray[36]>
      5: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      6: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      7: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      8: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      9: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     10: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     11: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     12: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     13: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     14: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     15: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     16: 0x18b2b54dad69 ; (literal 12) 0x18b2b54dad69 <JSFunction Buffer.allocUnsafe (sfi = 0x18b2b54cc1e9)>
  reading input frame Buffer.allocUnsafe => bytecode_offset=20, args=2, height=3; inputs:
      0: 0x18b2b54dad69 ; (literal 12) 0x18b2b54dad69 <JSFunction Buffer.allocUnsafe (sfi = 0x18b2b54cc1e9)>
      1: 0x35ef1a1a71a9 ; (literal 13) 0x35ef1a1a71a9 <JSFunction Buffer (sfi = 0x18b2b54cb1a9)>
      2: 0x8000000000 ; [fp + 24] 128
      3: 0x35ef1a1a66a9 ; (literal 14) 0x35ef1a1a66a9 <FixedArray[42]>
      4: 0x35ef1a1fd829 ; (literal 21) 0x35ef1a1fd829 <JSFunction allocate (sfi = 0x18b2b54cb419)>
      5: 0x2a2af9902311 ; (literal 16) 0x2a2af9902311 <undefined>
      6: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
  translating interpreted frame copyFromBuffer => bytecode_offset=25, height=88
    0x7ffd8f45f600: [top + 160] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #1)
    0x7ffd8f45f5f8: [top + 152] <- 0x8000000000 ;  128  (input #2)
    0x7ffd8f45f5f0: [top + 144] <- 0x19f9ce582369 ;  0x19f9ce582369 <BufferList map = 0x1558bcd39eb9>  (input #3)
    -------------------------
    0x7ffd8f45f5e8: [top + 136] <- 0x2851db679f0a ;  caller's pc
    0x7ffd8f45f5e0: [top + 128] <- 0x7ffd8f45f610 ;  caller's fp
    0x7ffd8f45f5d8: [top + 120] <- 0x35ef1a1ec031 ;  context    0x35ef1a1ec031 <FixedArray[36]>  (input #4)
    0x7ffd8f45f5d0: [top + 112] <- 0xec00c8a5ec9 ;  function    0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>  (input #0)
    0x7ffd8f45f5c8: [top + 104] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f5c0: [top + 96] <- 0xec00c8f5941 ;  bytecode array 0xec00c8f5941 <BytecodeArray[272]>  (input #0)
    0x7ffd8f45f5b8: [top + 88] <- 0x4e00000000 ;  bytecode offset 78  (input #0)
    -------------------------
    0x7ffd8f45f5b0: [top + 80] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #5)
    0x7ffd8f45f5a8: [top + 72] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #6)
    0x7ffd8f45f5a0: [top + 64] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #7)
    0x7ffd8f45f598: [top + 56] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #8)
    0x7ffd8f45f590: [top + 48] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #9)
    0x7ffd8f45f588: [top + 40] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffd8f45f580: [top + 32] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #11)
    0x7ffd8f45f578: [top + 24] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #12)
    0x7ffd8f45f570: [top + 16] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #13)
    0x7ffd8f45f568: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #14)
    0x7ffd8f45f560: [top + 0] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #15)
  translating interpreted frame Buffer.allocUnsafe => bytecode_offset=20, height=24
    0x7ffd8f45f558: [top + 88] <- 0x35ef1a1a71a9 ;  0x35ef1a1a71a9 <JSFunction Buffer (sfi = 0x18b2b54cb1a9)>  (input #1)
    0x7ffd8f45f550: [top + 80] <- 0x8000000000 ;  128  (input #2)
    -------------------------
    0x7ffd8f45f548: [top + 72] <- 0x2851db648e00 ;  caller's pc
    0x7ffd8f45f540: [top + 64] <- 0x7ffd8f45f5e0 ;  caller's fp
    0x7ffd8f45f538: [top + 56] <- 0x35ef1a1a66a9 ;  context    0x35ef1a1a66a9 <FixedArray[42]>  (input #3)
    0x7ffd8f45f530: [top + 48] <- 0x18b2b54dad69 ;  function    0x18b2b54dad69 <JSFunction Buffer.allocUnsafe (sfi = 0x18b2b54cc1e9)>  (input #0)
    0x7ffd8f45f528: [top + 40] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f520: [top + 32] <- 0x364ce2953ff9 ;  bytecode array 0x364ce2953ff9 <BytecodeArray[26]>  (input #0)
    0x7ffd8f45f518: [top + 24] <- 0x4900000000 ;  bytecode offset 73  (input #0)
    -------------------------
    0x7ffd8f45f510: [top + 16] <- 0x35ef1a1fd829 ;  0x35ef1a1fd829 <JSFunction allocate (sfi = 0x18b2b54cb419)>  (input #4)
    0x7ffd8f45f508: [top + 8] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #5)
    0x7ffd8f45f500: [top + 0] <- 0x2a2af9904a41 ;  accumulator 0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #6)
[deoptimizing (eager): end 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> @15 => node=20, pc=0x2851db648f00, caller sp=0x7ffd8f45f608, state=TOS_REGISTER, took 0.344 ms]
[removing optimized code for: 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>]
[marking 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 36/67 (53%), generic ICs: 0/67 (0%)]
[compiling method 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> using TurboFan]
[marking 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 30/38 (78%), generic ICs: 0/38 (0%)]
[compiling method 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> using TurboFan]
[marking 0x35ef1a1fd829 <JSFunction allocate (sfi = 0x18b2b54cb419)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 11/12 (91%), generic ICs: 0/12 (0%)]
[compiling method 0x35ef1a1fd829 <JSFunction allocate (sfi = 0x18b2b54cb419)> using TurboFan]
[optimizing 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> - took 1.098, 1.969, 0.157 ms]
[completed optimizing 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>]
[optimizing 0x35ef1a1fd829 <JSFunction allocate (sfi = 0x18b2b54cb419)> - took 0.384, 0.834, 0.077 ms]
[completed optimizing 0x35ef1a1fd829 <JSFunction allocate (sfi = 0x18b2b54cb419)>]
[optimizing 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> - took 0.909, 6.498, 0.251 ms]
[completed optimizing 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>]
[compiling method 0x19f9ce582699 <JSFunction main (sfi = 0xec00c8df6e1)> using TurboFan OSR]
[optimizing 0x19f9ce582699 <JSFunction main (sfi = 0xec00c8df6e1)> - took 0.417, 1.382, 0.092 ms]
[deoptimizing (DEOPT eager): begin 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> (opt #6) @41, FP to SP delta: 128, caller sp: 0x7ffd8f45f7f0]
            ;;; deoptimize at <_stream_readable.js:374:9>, not a Smi
  reading input frame Readable.read => bytecode_offset=498, args=2, height=10; inputs:
      0: 0x364ce2937511 ; [fp - 16] 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>
      1: 0x19f9ce5824f1 ; [fp + 24] 0x19f9ce5824f1 <Readable map = 0x1558bcd3a751>
      2: 0x18fd595f3859 ; rbx 0x18fd595f3859 <Number 128>
      3: 0x35ef1a1ec031 ; [fp - 8] 0x35ef1a1ec031 <FixedArray[36]>
      4: 0x19f9ce5823d9 ; [fp - 32] 0x19f9ce5823d9 <ReadableState map = 0x1558bcd3a4e9>
      5: 0x8000000000 ; [fp - 24] 128
      6: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      7: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      8: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      9: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     10: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     11: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     12: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     13: 0x00000000 ; (literal 13) 0
  translating interpreted frame Readable.read => bytecode_offset=498, height=80
    0x7ffd8f45f7e8: [top + 144] <- 0x19f9ce5824f1 ;  0x19f9ce5824f1 <Readable map = 0x1558bcd3a751>  (input #1)
    0x7ffd8f45f7e0: [top + 136] <- 0x18fd595f3859 ;  0x18fd595f3859 <Number 128>  (input #2)
    -------------------------
    0x7ffd8f45f7d8: [top + 128] <- 0x2851db713094 ;  caller's pc
    0x7ffd8f45f7d0: [top + 120] <- 0x7ffd8f45f898 ;  caller's fp
    0x7ffd8f45f7c8: [top + 112] <- 0x35ef1a1ec031 ;  context    0x35ef1a1ec031 <FixedArray[36]>  (input #3)
    0x7ffd8f45f7c0: [top + 104] <- 0x364ce2937511 ;  function    0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>  (input #0)
    0x7ffd8f45f7b8: [top + 96] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f7b0: [top + 88] <- 0xec00c8f43f9 ;  bytecode array 0xec00c8f43f9 <BytecodeArray[626]>  (input #0)
    0x7ffd8f45f7a8: [top + 80] <- 0x22700000000 ;  bytecode offset 551  (input #0)
    -------------------------
    0x7ffd8f45f7a0: [top + 72] <- 0x19f9ce5823d9 ;  0x19f9ce5823d9 <ReadableState map = 0x1558bcd3a4e9>  (input #4)
    0x7ffd8f45f798: [top + 64] <- 0x8000000000 ;  128  (input #5)
    0x7ffd8f45f790: [top + 56] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #6)
    0x7ffd8f45f788: [top + 48] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #7)
    0x7ffd8f45f780: [top + 40] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #8)
    0x7ffd8f45f778: [top + 32] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #9)
    0x7ffd8f45f770: [top + 24] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffd8f45f768: [top + 16] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #11)
    0x7ffd8f45f760: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #12)
    0x7ffd8f45f758: [top + 0] <- 0x00000000 ;  accumulator 0  (input #13)
[deoptimizing (eager): end 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> @41 => node=498, pc=0x2851db648f00, caller sp=0x7ffd8f45f7f0, state=TOS_REGISTER, took 0.229 ms]
[removing optimized code for: 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>]
[deoptimizing (DEOPT eager): begin 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> (opt #7) @32, FP to SP delta: 88, caller sp: 0x7ffd8f45f5e8]
            ;;; deoptimize at <_stream_readable.js:947:14>, not a Smi
  reading input frame copyFromBuffer => bytecode_offset=62, args=3, height=12; inputs:
      0: 0xec00c8a5ec9 ; [fp - 16] 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>
      1: 0x2a2af9902311 ; [fp + 32] 0x2a2af9902311 <undefined>
      2: 0x18fd595f3859 ; [fp + 24] 0x18fd595f3859 <Number 128>
      3: 0x19f9ce582369 ; [fp + 16] 0x19f9ce582369 <BufferList map = 0x1558bcd39eb9>
      4: 0x35ef1a1ec031 ; [fp - 8] 0x35ef1a1ec031 <FixedArray[36]>
      5: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      6: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      7: 0x18fd595f3869 ; [fp - 24] 0x18fd595f3869 <Uint8Array map = 0x1558bcd2bc31>
      8: 0x18fd59591d91 ; rax 0x18fd59591d91 <Object map = 0x1558bcd3a801>
      9: 0x100000000 ; (literal 29) 1
     10: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     11: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     12: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     13: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     14: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     15: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     16: 0x2a2af9904a41 ; (literal 11) 0x2a2af9904a41 <Odd Oddball: optimized_out>
  translating interpreted frame copyFromBuffer => bytecode_offset=62, height=96
    0x7ffd8f45f5e0: [top + 168] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #1)
    0x7ffd8f45f5d8: [top + 160] <- 0x18fd595f3859 ;  0x18fd595f3859 <Number 128>  (input #2)
    0x7ffd8f45f5d0: [top + 152] <- 0x19f9ce582369 ;  0x19f9ce582369 <BufferList map = 0x1558bcd39eb9>  (input #3)
    -------------------------
    0x7ffd8f45f5c8: [top + 144] <- 0x2851db679f0a ;  caller's pc
    0x7ffd8f45f5c0: [top + 136] <- 0x7ffd8f45f5f0 ;  caller's fp
    0x7ffd8f45f5b8: [top + 128] <- 0x35ef1a1ec031 ;  context    0x35ef1a1ec031 <FixedArray[36]>  (input #4)
    0x7ffd8f45f5b0: [top + 120] <- 0xec00c8a5ec9 ;  function    0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>  (input #0)
    0x7ffd8f45f5a8: [top + 112] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f5a0: [top + 104] <- 0xec00c8f5941 ;  bytecode array 0xec00c8f5941 <BytecodeArray[272]>  (input #0)
    0x7ffd8f45f598: [top + 96] <- 0x7300000000 ;  bytecode offset 115  (input #0)
    -------------------------
    0x7ffd8f45f590: [top + 88] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #5)
    0x7ffd8f45f588: [top + 80] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #6)
    0x7ffd8f45f580: [top + 72] <- 0x18fd595f3869 ;  0x18fd595f3869 <Uint8Array map = 0x1558bcd2bc31>  (input #7)
    0x7ffd8f45f578: [top + 64] <- 0x18fd59591d91 ;  0x18fd59591d91 <Object map = 0x1558bcd3a801>  (input #8)
    0x7ffd8f45f570: [top + 56] <- 0x100000000 ;  1  (input #9)
    0x7ffd8f45f568: [top + 48] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffd8f45f560: [top + 40] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #11)
    0x7ffd8f45f558: [top + 32] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #12)
    0x7ffd8f45f550: [top + 24] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #13)
    0x7ffd8f45f548: [top + 16] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #14)
    0x7ffd8f45f540: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #15)
    0x7ffd8f45f538: [top + 0] <- 0x2a2af9904a41 ;  accumulator 0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #16)
[deoptimizing (eager): end 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> @32 => node=62, pc=0x2851db648f00, caller sp=0x7ffd8f45f5e8, state=TOS_REGISTER, took 0.229 ms]
[removing optimized code for: 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>]
[marking dependent code 0x2851db70f6a1 (opt #5) for deoptimization, reason: prototype-check]
[marking dependent code 0x2851db711761 (opt #6) for deoptimization, reason: prototype-check]
[marking dependent code 0x2851db712e61 (opt #9) for deoptimization, reason: prototype-check]
[deoptimize marked code in all contexts]
[deoptimizer unlinked: Readable.push / 364ce29373f1]
[deoptimizing (DEOPT lazy): begin 0x19f9ce582699 <JSFunction main (sfi = 0xec00c8df6e1)> (opt #9) @8, FP to SP delta: 168, caller sp: 0x7ffd8f45f8b8]
  reading input frame main => bytecode_offset=162, args=2, height=10; inputs:
      0: 0x19f9ce582699 ; [fp - 16] 0x19f9ce582699 <JSFunction main (sfi = 0xec00c8df6e1)>
      1: 0x2a2af9902311 ; [fp + 24] 0x2a2af9902311 <undefined>
      2: 0x19f9ce582721 ; [fp + 16] 0x19f9ce582721 <Object map = 0x1558bcd39889>
      3: 0x19f9ce5826e1 ; [fp - 120] 0x19f9ce5826e1 <FixedArray[6]>
      4: 0x3e800000000 ; [fp - 48] 1000
      5: 0x19f9ce582649 ; [fp - 56] 0x19f9ce582649 <Uint8Array map = 0x1558bcd2bc31>
      6: 0x19f9ce5824f1 ; [fp - 64] 0x19f9ce5824f1 <Readable map = 0x1558bcd3a751>
      7: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      8: 0x200000000 ; [fp - 80] 2
      9: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     10: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     11: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     12: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     13: 0x18fd595f3869 ; rax 0x18fd595f3869 <Uint8Array map = 0x1558bcd2bc31>
  translating interpreted frame main => bytecode_offset=162, height=80
    0x7ffd8f45f8b0: [top + 144] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #1)
    0x7ffd8f45f8a8: [top + 136] <- 0x19f9ce582721 ;  0x19f9ce582721 <Object map = 0x1558bcd39889>  (input #2)
    -------------------------
    0x7ffd8f45f8a0: [top + 128] <- 0x2851db679ddc ;  caller's pc
    0x7ffd8f45f898: [top + 120] <- 0x7ffd8f45f8c0 ;  caller's fp
    0x7ffd8f45f890: [top + 112] <- 0x19f9ce5826e1 ;  context    0x19f9ce5826e1 <FixedArray[6]>  (input #3)
    0x7ffd8f45f888: [top + 104] <- 0x19f9ce582699 ;  function    0x19f9ce582699 <JSFunction main (sfi = 0xec00c8df6e1)>  (input #0)
    0x7ffd8f45f880: [top + 96] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f878: [top + 88] <- 0xec00c8f05b1 ;  bytecode array 0xec00c8f05b1 <BytecodeArray[210]>  (input #0)
    0x7ffd8f45f870: [top + 80] <- 0xd700000000 ;  bytecode offset 215  (input #0)
    -------------------------
    0x7ffd8f45f868: [top + 72] <- 0x3e800000000 ;  1000  (input #4)
    0x7ffd8f45f860: [top + 64] <- 0x19f9ce582649 ;  0x19f9ce582649 <Uint8Array map = 0x1558bcd2bc31>  (input #5)
    0x7ffd8f45f858: [top + 56] <- 0x19f9ce5824f1 ;  0x19f9ce5824f1 <Readable map = 0x1558bcd3a751>  (input #6)
    0x7ffd8f45f850: [top + 48] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #7)
    0x7ffd8f45f848: [top + 40] <- 0x200000000 ;  2  (input #8)
    0x7ffd8f45f840: [top + 32] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #9)
    0x7ffd8f45f838: [top + 24] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffd8f45f830: [top + 16] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #11)
    0x7ffd8f45f828: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #12)
    0x7ffd8f45f820: [top + 0] <- 0x18fd595f3869 ;  accumulator 0x18fd595f3869 <Uint8Array map = 0x1558bcd2bc31>  (input #13)
[deoptimizing (lazy): end 0x19f9ce582699 <JSFunction main (sfi = 0xec00c8df6e1)> @8 => node=162, pc=0x2851db648e00, caller sp=0x7ffd8f45f8b8, state=TOS_REGISTER, took 0.177 ms]
[marking 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 30/38 (78%), generic ICs: 0/38 (0%)]
[compiling method 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> using TurboFan]
[optimizing 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)> - took 0.761, 2.006, 0.167 ms]
[completed optimizing 0xec00c8a5ec9 <JSFunction copyFromBuffer (sfi = 0x364ce2934759)>]
[marking 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 46/67 (68%), generic ICs: 0/67 (0%)]
[compiling method 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> using TurboFan]
[deoptimizing (DEOPT eager): begin 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)> (opt #1) @4, FP to SP delta: 80, caller sp: 0x7ffd8f45f6f8]
            ;;; deoptimize at <_stream_readable.js:171:19>, wrong map
  reading input frame readableAddChunk => bytecode_offset=62, args=6, height=8; inputs:
      0: 0xec00c8a59b9 ; [fp - 16] 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)>
      1: 0x2a2af9902311 ; [fp + 56] 0x2a2af9902311 <undefined>
      2: 0x320bde5b6ca9 ; [fp + 48] 0x320bde5b6ca9 <Readable map = 0x1558bcd3a751>
      3: 0x320bde5b6b91 ; rcx 0x320bde5b6b91 <ReadableState map = 0x1558bcd3a961>
      4: 0x320bde5b6d19 ; rdx 0x320bde5b6d19 <Uint8Array map = 0x1558bcd2bc31>
      5: 0x2a2af9902311 ; [fp + 24] 0x2a2af9902311 <undefined>
      6: 0x2a2af9902421 ; rdi 0x2a2af9902421 <false>
      7: 0x35ef1a1ec031 ; [fp - 8] 0x35ef1a1ec031 <FixedArray[36]>
      8: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      9: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     10: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     11: 0x2a2af9902311 ; (literal 8) 0x2a2af9902311 <undefined>
     12: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     13: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     14: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     15: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
  translating interpreted frame readableAddChunk => bytecode_offset=62, height=64
    0x7ffd8f45f6f0: [top + 160] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #1)
    0x7ffd8f45f6e8: [top + 152] <- 0x320bde5b6ca9 ;  0x320bde5b6ca9 <Readable map = 0x1558bcd3a751>  (input #2)
    0x7ffd8f45f6e0: [top + 144] <- 0x320bde5b6b91 ;  0x320bde5b6b91 <ReadableState map = 0x1558bcd3a961>  (input #3)
    0x7ffd8f45f6d8: [top + 136] <- 0x320bde5b6d19 ;  0x320bde5b6d19 <Uint8Array map = 0x1558bcd2bc31>  (input #4)
    0x7ffd8f45f6d0: [top + 128] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #5)
    0x7ffd8f45f6c8: [top + 120] <- 0x2a2af9902421 ;  0x2a2af9902421 <false>  (input #6)
    -------------------------
    0x7ffd8f45f6c0: [top + 112] <- 0x2851db679728 ;  caller's pc
    0x7ffd8f45f6b8: [top + 104] <- 0x7ffd8f45f738 ;  caller's fp
    0x7ffd8f45f6b0: [top + 96] <- 0x35ef1a1ec031 ;  context    0x35ef1a1ec031 <FixedArray[36]>  (input #7)
    0x7ffd8f45f6a8: [top + 88] <- 0xec00c8a59b9 ;  function    0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)>  (input #0)
    0x7ffd8f45f6a0: [top + 80] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f698: [top + 72] <- 0xec00c8f27e1 ;  bytecode array 0xec00c8f27e1 <BytecodeArray[441]>  (input #0)
    0x7ffd8f45f690: [top + 64] <- 0x7300000000 ;  bytecode offset 115  (input #0)
    -------------------------
    0x7ffd8f45f688: [top + 56] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #8)
    0x7ffd8f45f680: [top + 48] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #9)
    0x7ffd8f45f678: [top + 40] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffd8f45f670: [top + 32] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #11)
    0x7ffd8f45f668: [top + 24] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #12)
    0x7ffd8f45f660: [top + 16] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #13)
    0x7ffd8f45f658: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #14)
    0x7ffd8f45f650: [top + 0] <- 0x2a2af9904a41 ;  accumulator 0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #15)
[deoptimizing (eager): end 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)> @4 => node=62, pc=0x2851db648f00, caller sp=0x7ffd8f45f6f8, state=TOS_REGISTER, took 0.232 ms]
[removing optimized code for: 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)>]
[deoptimizing (DEOPT eager): begin 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)> (opt #2) @1, FP to SP delta: 16, caller sp: 0x7ffd8f45f640]
            ;;; deoptimize at <_stream_readable.js:226:16>, wrong map
  reading input frame needMoreData => bytecode_offset=0, args=2, height=2; inputs:
      0: 0xec00c8a5a01 ; [fp - 16] 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)>
      1: 0x2a2af9902311 ; [fp + 24] 0x2a2af9902311 <undefined>
      2: 0x320bde5b6b91 ; rax 0x320bde5b6b91 <ReadableState map = 0x1558bcd3a961>
      3: 0x35ef1a1ec031 ; [fp - 8] 0x35ef1a1ec031 <FixedArray[36]>
      4: 0x2a2af9904a41 ; (literal 1) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      5: 0x2a2af9904a41 ; (literal 1) 0x2a2af9904a41 <Odd Oddball: optimized_out>
  translating interpreted frame needMoreData => bytecode_offset=0, height=16
    0x7ffd8f45f638: [top + 80] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #1)
    0x7ffd8f45f630: [top + 72] <- 0x320bde5b6b91 ;  0x320bde5b6b91 <ReadableState map = 0x1558bcd3a961>  (input #2)
    -------------------------
    0x7ffd8f45f628: [top + 64] <- 0x2851db679ddc ;  caller's pc
    0x7ffd8f45f620: [top + 56] <- 0x7ffd8f45f648 ;  caller's fp
    0x7ffd8f45f618: [top + 48] <- 0x35ef1a1ec031 ;  context    0x35ef1a1ec031 <FixedArray[36]>  (input #3)
    0x7ffd8f45f610: [top + 40] <- 0xec00c8a5a01 ;  function    0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)>  (input #0)
    0x7ffd8f45f608: [top + 32] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f600: [top + 24] <- 0xec00c8f3691 ;  bytecode array 0xec00c8f3691 <BytecodeArray[41]>  (input #0)
    0x7ffd8f45f5f8: [top + 16] <- 0x3500000000 ;  bytecode offset 53  (input #0)
    -------------------------
    0x7ffd8f45f5f0: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #4)
    0x7ffd8f45f5e8: [top + 0] <- 0x2a2af9904a41 ;  accumulator 0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #5)
[deoptimizing (eager): end 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)> @1 => node=0, pc=0x2851db648f00, caller sp=0x7ffd8f45f640, state=TOS_REGISTER, took 0.105 ms]
[removing optimized code for: 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)>]
[marking 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 22/52 (42%), generic ICs: 0/52 (0%)]
[compiling method 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)> using TurboFan]
[optimizing 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> - took 0.874, 3.458, 0.232 ms]
[completed optimizing 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>]
[marking 0x364ce29373f1 <JSFunction Readable.push (sfi = 0x364ce29349c9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 4/9 (44%), generic ICs: 0/9 (0%)]
[compiling method 0x364ce29373f1 <JSFunction Readable.push (sfi = 0x364ce29349c9)> using TurboFan]
[optimizing 0x364ce29373f1 <JSFunction Readable.push (sfi = 0x364ce29349c9)> - took 0.086, 0.308, 0.034 ms]
[completed optimizing 0x364ce29373f1 <JSFunction Readable.push (sfi = 0x364ce29349c9)>]
[marking 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)> for optimized recompilation, reason: small function, ICs with typeinfo: 7/7 (100%), generic ICs: 0/7 (0%)]
[compiling method 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)> using TurboFan]
[optimizing 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)> - took 0.807, 3.311, 0.256 ms]
[completed optimizing 0xec00c8a59b9 <JSFunction readableAddChunk (sfi = 0x364ce29338b9)>]
[optimizing 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)> - took 0.062, 0.313, 0.018 ms]
[completed optimizing 0xec00c8a5a01 <JSFunction needMoreData (sfi = 0x364ce2933989)>]
[marking 0xec00c8a5ad9 <JSFunction chunkInvalid (sfi = 0x364ce2933bf9)> for optimized recompilation, reason: small function, ICs with typeinfo: 2/7 (28%), generic ICs: 0/7 (0%)]
[compiling method 0x320bde5b6d69 <JSFunction main (sfi = 0xec00c8df6e1)> using TurboFan OSR]
[optimizing 0x320bde5b6d69 <JSFunction main (sfi = 0xec00c8df6e1)> - took 0.398, 1.195, 0.077 ms]
[deoptimizing (DEOPT eager): begin 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> (opt #11) @75, FP to SP delta: 136, caller sp: 0x7ffd8f45f7f8]
            ;;; deoptimize at <_stream_readable.js:393:15>, not a Smi
  reading input frame Readable.read => bytecode_offset=579, args=2, height=10; inputs:
      0: 0x364ce2937511 ; [fp - 16] 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>
      1: 0x320bde5b6ca9 ; [fp + 24] 0x320bde5b6ca9 <Readable map = 0x1558bcd3a751>
      2: 0xe2c582223e1 ; r8 0xe2c582223e1 <Number 128>
      3: 0x35ef1a1ec031 ; [fp - 8] 0x35ef1a1ec031 <FixedArray[36]>
      4: 0x320bde5b6b91 ; rax 0x320bde5b6b91 <ReadableState map = 0x1558bcd3a961>
      5: 0x8000000000 ; [fp - 24] 128
      6: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      7: 0xe2c58222401 ; rbx 0xe2c58222401 <Uint8Array map = 0x1558bcd2bc31>
      8: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      9: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     10: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     11: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     12: 0x2a2af9904a41 ; (literal 7) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     13: 0xe2c582223e1 ; r8 0xe2c582223e1 <Number 128>
  translating interpreted frame Readable.read => bytecode_offset=579, height=80
    0x7ffd8f45f7f0: [top + 144] <- 0x320bde5b6ca9 ;  0x320bde5b6ca9 <Readable map = 0x1558bcd3a751>  (input #1)
    0x7ffd8f45f7e8: [top + 136] <- 0xe2c582223e1 ;  0xe2c582223e1 <Number 128>  (input #2)
    -------------------------
    0x7ffd8f45f7e0: [top + 128] <- 0x2851db719f92 ;  caller's pc
    0x7ffd8f45f7d8: [top + 120] <- 0x7ffd8f45f898 ;  caller's fp
    0x7ffd8f45f7d0: [top + 112] <- 0x35ef1a1ec031 ;  context    0x35ef1a1ec031 <FixedArray[36]>  (input #3)
    0x7ffd8f45f7c8: [top + 104] <- 0x364ce2937511 ;  function    0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>  (input #0)
    0x7ffd8f45f7c0: [top + 96] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f7b8: [top + 88] <- 0xec00c8f43f9 ;  bytecode array 0xec00c8f43f9 <BytecodeArray[626]>  (input #0)
    0x7ffd8f45f7b0: [top + 80] <- 0x27800000000 ;  bytecode offset 632  (input #0)
    -------------------------
    0x7ffd8f45f7a8: [top + 72] <- 0x320bde5b6b91 ;  0x320bde5b6b91 <ReadableState map = 0x1558bcd3a961>  (input #4)
    0x7ffd8f45f7a0: [top + 64] <- 0x8000000000 ;  128  (input #5)
    0x7ffd8f45f798: [top + 56] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #6)
    0x7ffd8f45f790: [top + 48] <- 0xe2c58222401 ;  0xe2c58222401 <Uint8Array map = 0x1558bcd2bc31>  (input #7)
    0x7ffd8f45f788: [top + 40] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #8)
    0x7ffd8f45f780: [top + 32] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #9)
    0x7ffd8f45f778: [top + 24] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffd8f45f770: [top + 16] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #11)
    0x7ffd8f45f768: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #12)
    0x7ffd8f45f760: [top + 0] <- 0xe2c582223e1 ;  accumulator 0xe2c582223e1 <Number 128>  (input #13)
[deoptimizing (eager): end 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> @75 => node=579, pc=0x2851db648f00, caller sp=0x7ffd8f45f7f8, state=TOS_REGISTER, took 0.230 ms]
[removing optimized code for: 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>]
[marking 0xec00c8a5a91 <JSFunction howMuchToRead (sfi = 0x364ce2933b29)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 12/22 (54%), generic ICs: 0/22 (0%)]
[compiling method 0xec00c8a5a91 <JSFunction howMuchToRead (sfi = 0x364ce2933b29)> using TurboFan]
[optimizing 0xec00c8a5a91 <JSFunction howMuchToRead (sfi = 0x364ce2933b29)> - took 0.114, 0.438, 0.031 ms]
[completed optimizing 0xec00c8a5a91 <JSFunction howMuchToRead (sfi = 0x364ce2933b29)>]
[marking 0xec00c8a5df1 <JSFunction fromList (sfi = 0x364ce29344e9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 19/28 (67%), generic ICs: 0/28 (0%)]
[compiling method 0xec00c8a5df1 <JSFunction fromList (sfi = 0x364ce29344e9)> using TurboFan]
[marking 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 46/67 (68%), generic ICs: 0/67 (0%)]
[compiling method 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> using TurboFan]
[marking 0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 15/54 (27%), generic ICs: 1/54 (1%)]
[compiling method 0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)> using TurboFan]
[marking 0xec00c8a5e39 <JSFunction fromListPartial (sfi = 0x364ce29345b9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 9/22 (40%), generic ICs: 0/22 (0%)]
[compiling method 0xec00c8a5e39 <JSFunction fromListPartial (sfi = 0x364ce29345b9)> using TurboFan]
[optimizing 0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)> - took 0.437, 2.022, 0.179 ms]
[completed optimizing 0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)>]
[optimizing 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)> - took 0.915, 3.517, 0.228 ms]
[completed optimizing 0x364ce2937511 <JSFunction Readable.read (sfi = 0x364ce2934d09)>]
[marking 0x18b2b54dad69 <JSFunction Buffer.allocUnsafe (sfi = 0x18b2b54cc1e9)> for optimized recompilation, reason: small function, ICs with typeinfo: 2/2 (100%), generic ICs: 0/2 (0%)]
[compiling method 0x18b2b54dad69 <JSFunction Buffer.allocUnsafe (sfi = 0x18b2b54cc1e9)> using TurboFan]
[optimizing 0xec00c8a5df1 <JSFunction fromList (sfi = 0x364ce29344e9)> - took 0.724, 6.041, 0.192 ms]
[completed optimizing 0xec00c8a5df1 <JSFunction fromList (sfi = 0x364ce29344e9)>]
[optimizing 0x18b2b54dad69 <JSFunction Buffer.allocUnsafe (sfi = 0x18b2b54cc1e9)> - took 0.476, 1.132, 0.090 ms]
[completed optimizing 0x18b2b54dad69 <JSFunction Buffer.allocUnsafe (sfi = 0x18b2b54cc1e9)>]
[optimizing 0xec00c8a5e39 <JSFunction fromListPartial (sfi = 0x364ce29345b9)> - took 1.063, 2.357, 0.157 ms]
[completed optimizing 0xec00c8a5e39 <JSFunction fromListPartial (sfi = 0x364ce29345b9)>]
[marking 0x18b2b549a591 <JSFunction Uint8Array (sfi = 0x2a2af9912c89)> for optimized recompilation, reason: not much type info but very hot, ICs with typeinfo: 1/9 (11%), generic ICs: 0/9 (0%)]
[compiling method 0x18b2b549a591 <JSFunction Uint8Array (sfi = 0x2a2af9912c89)> using TurboFan]
[optimizing 0x18b2b549a591 <JSFunction Uint8Array (sfi = 0x2a2af9912c89)> - took 0.155, 0.405, 0.064 ms]
[completed optimizing 0x18b2b549a591 <JSFunction Uint8Array (sfi = 0x2a2af9912c89)>]
[deoptimizing (DEOPT soft): begin 0x320bde5b6d69 <JSFunction main (sfi = 0xec00c8df6e1)> (opt #15) @23, FP to SP delta: 160, caller sp: 0x7ffd8f45f8b8]
            ;;; deoptimize at <_stream_readable.js:151:10> inlined at </home/mzasso/git/nodejs/node-canary/benchmark/streams/readable-bigread.js:1:1>, Insufficient type feedback for generic named access
  reading input frame main => bytecode_offset=197, args=2, height=10; inputs:
      0: 0x320bde5b6d69 ; [fp - 16] 0x320bde5b6d69 <JSFunction main (sfi = 0xec00c8df6e1)>
      1: 0x2a2af9902311 ; [fp + 24] 0x2a2af9902311 <undefined>
      2: 0x320bde5b6df1 ; [fp + 16] 0x320bde5b6df1 <Object map = 0x1558bcd39889>
      3: 0x320bde5b6db1 ; [fp - 120] 0x320bde5b6db1 <FixedArray[6]>
      4: 0x3e800000000 ; [fp - 48] 1000
      5: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      6: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      7: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      8: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      9: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     10: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     11: 0x320bde5c8f71 ; rax 0x320bde5c8f71 <Benchmark map = 0x1558bcd39a41>
     12: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     13: 0x2a2af9904a41 ; (literal 3) 0x2a2af9904a41 <Odd Oddball: optimized_out>
  translating interpreted frame main => bytecode_offset=197, height=80
    0x7ffd8f45f8b0: [top + 144] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #1)
    0x7ffd8f45f8a8: [top + 136] <- 0x320bde5b6df1 ;  0x320bde5b6df1 <Object map = 0x1558bcd39889>  (input #2)
    -------------------------
    0x7ffd8f45f8a0: [top + 128] <- 0x2851db679ddc ;  caller's pc
    0x7ffd8f45f898: [top + 120] <- 0x7ffd8f45f8c0 ;  caller's fp
    0x7ffd8f45f890: [top + 112] <- 0x320bde5b6db1 ;  context    0x320bde5b6db1 <FixedArray[6]>  (input #3)
    0x7ffd8f45f888: [top + 104] <- 0x320bde5b6d69 ;  function    0x320bde5b6d69 <JSFunction main (sfi = 0xec00c8df6e1)>  (input #0)
    0x7ffd8f45f880: [top + 96] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45f878: [top + 88] <- 0xec00c8f05b1 ;  bytecode array 0xec00c8f05b1 <BytecodeArray[210]>  (input #0)
    0x7ffd8f45f870: [top + 80] <- 0xfa00000000 ;  bytecode offset 250  (input #0)
    -------------------------
    0x7ffd8f45f868: [top + 72] <- 0x3e800000000 ;  1000  (input #4)
    0x7ffd8f45f860: [top + 64] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #5)
    0x7ffd8f45f858: [top + 56] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #6)
    0x7ffd8f45f850: [top + 48] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #7)
    0x7ffd8f45f848: [top + 40] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #8)
    0x7ffd8f45f840: [top + 32] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #9)
    0x7ffd8f45f838: [top + 24] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffd8f45f830: [top + 16] <- 0x320bde5c8f71 ;  0x320bde5c8f71 <Benchmark map = 0x1558bcd39a41>  (input #11)
    0x7ffd8f45f828: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #12)
    0x7ffd8f45f820: [top + 0] <- 0x2a2af9904a41 ;  accumulator 0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #13)
[deoptimizing (soft): end 0x320bde5b6d69 <JSFunction main (sfi = 0xec00c8df6e1)> @23 => node=197, pc=0x2851db648f00, caller sp=0x7ffd8f45f8b8, state=TOS_REGISTER, took 0.250 ms]
[deoptimizing (DEOPT eager): begin 0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)> (opt #19) @1, FP to SP delta: 128, caller sp: 0x7ffd8f45fc80]
            ;;; deoptimize at <events.js:160:23>, wrong instance type
  reading input frame emit => bytecode_offset=3, args=2, height=24; inputs:
      0: 0x18b2b54be6f1 ; [fp - 16] 0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)>
      1: 0x364ce297e3e9 ; [fp + 24] 0x364ce297e3e9 <process map = 0x1558bcd11e51>
      2: 0x2fb276743081 ; r9 0x2fb276743081 <String[10]: beforeExit>
      3: 0x35ef1a18d959 ; [fp - 8] 0x35ef1a18d959 <FixedArray[22]>
      4: 0x2a2af9902311 ; (literal 4) 0x2a2af9902311 <undefined>
      5: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      6: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      7: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      8: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
      9: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     10: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     11: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     12: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     13: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     14: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     15: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     16: 0x2fb2767430e9 ; rdi 0x2fb2767430e9 <Arguments map = 0x1558bcd08559>
     17: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     18: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     19: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     20: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     21: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     22: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     23: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     24: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     25: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     26: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
     27: 0x2a2af9904a41 ; (literal 5) 0x2a2af9904a41 <Odd Oddball: optimized_out>
  translating interpreted frame emit => bytecode_offset=3, height=192
    0x7ffd8f45fc78: [top + 256] <- 0x364ce297e3e9 ;  0x364ce297e3e9 <process map = 0x1558bcd11e51>  (input #1)
    0x7ffd8f45fc70: [top + 248] <- 0x2fb276743081 ;  0x2fb276743081 <String[10]: beforeExit>  (input #2)
    -------------------------
    0x7ffd8f45fc68: [top + 240] <- 0x2851db585a7b ;  caller's pc
    0x7ffd8f45fc60: [top + 232] <- 0x7ffd8f45fc98 ;  caller's fp
    0x7ffd8f45fc58: [top + 224] <- 0x35ef1a18d959 ;  context    0x35ef1a18d959 <FixedArray[22]>  (input #3)
    0x7ffd8f45fc50: [top + 216] <- 0x18b2b54be6f1 ;  function    0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)>  (input #0)
    0x7ffd8f45fc48: [top + 208] <- 0x2a2af9902311 ;  new_target  0x2a2af9902311 <undefined>  (input #0)
    0x7ffd8f45fc40: [top + 200] <- 0x18b2b54f6541 ;  bytecode array 0x18b2b54f6541 <BytecodeArray[535]>  (input #0)
    0x7ffd8f45fc38: [top + 192] <- 0x3800000000 ;  bytecode offset 56  (input #0)
    -------------------------
    0x7ffd8f45fc30: [top + 184] <- 0x2a2af9902311 ;  0x2a2af9902311 <undefined>  (input #4)
    0x7ffd8f45fc28: [top + 176] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #5)
    0x7ffd8f45fc20: [top + 168] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #6)
    0x7ffd8f45fc18: [top + 160] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #7)
    0x7ffd8f45fc10: [top + 152] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #8)
    0x7ffd8f45fc08: [top + 144] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #9)
    0x7ffd8f45fc00: [top + 136] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffd8f45fbf8: [top + 128] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #11)
    0x7ffd8f45fbf0: [top + 120] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #12)
    0x7ffd8f45fbe8: [top + 112] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #13)
    0x7ffd8f45fbe0: [top + 104] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #14)
    0x7ffd8f45fbd8: [top + 96] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #15)
    0x7ffd8f45fbd0: [top + 88] <- 0x2fb2767430e9 ;  0x2fb2767430e9 <Arguments map = 0x1558bcd08559>  (input #16)
    0x7ffd8f45fbc8: [top + 80] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #17)
    0x7ffd8f45fbc0: [top + 72] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #18)
    0x7ffd8f45fbb8: [top + 64] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #19)
    0x7ffd8f45fbb0: [top + 56] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #20)
    0x7ffd8f45fba8: [top + 48] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #21)
    0x7ffd8f45fba0: [top + 40] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #22)
    0x7ffd8f45fb98: [top + 32] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #23)
    0x7ffd8f45fb90: [top + 24] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #24)
    0x7ffd8f45fb88: [top + 16] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #25)
    0x7ffd8f45fb80: [top + 8] <- 0x2a2af9904a41 ;  0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #26)
    0x7ffd8f45fb78: [top + 0] <- 0x2a2af9904a41 ;  accumulator 0x2a2af9904a41 <Odd Oddball: optimized_out>  (input #27)
[deoptimizing (eager): end 0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)> @1 => node=3, pc=0x2851db648f00, caller sp=0x7ffd8f45fc80, state=TOS_REGISTER, took 0.384 ms]
[removing optimized code for: 0x18b2b54be6f1 <JSFunction emit (sfi = 0x18b2b54bce89)>]
streams/readable-bigread.js n=1000: 497.0089677266382

node-cs:

[marking 0x1571e7b38e9 <JSFunction BufferList.push (sfi = 0x1571e7b2f79)> for optimized recompilation, reason: small function, ICs with typeinfo: 9/10 (90%), generic ICs: 0/10 (0%)]
[marking 0x2375da6a5eb1 <JSFunction maybeReadMore (sfi = 0x1571e7b0a39)> for optimized recompilation, reason: small function, ICs with typeinfo: 4/7 (57%), generic ICs: 0/7 (0%)]
[marking 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)> for optimized recompilation, reason: small function, ICs with typeinfo: 9/11 (81%), generic ICs: 0/11 (0%)]
[marking 0x1571e7b3b01 <JSFunction Readable.push (sfi = 0x1571e7b14c9)> for optimized recompilation, reason: small function, ICs with typeinfo: 4/12 (33%), generic ICs: 0/12 (0%)]
[compiling method 0x1571e7b3b01 <JSFunction Readable.push (sfi = 0x1571e7b14c9)> using Crankshaft]
[compiling method 0x1571e7b38e9 <JSFunction BufferList.push (sfi = 0x1571e7b2f79)> using Crankshaft]
[compiling method 0x2375da6a5eb1 <JSFunction maybeReadMore (sfi = 0x1571e7b0a39)> using Crankshaft]
[optimizing 0x1571e7b3b01 <JSFunction Readable.push (sfi = 0x1571e7b14c9)> - took 0.069, 0.128, 0.047 ms]
[completed optimizing 0x1571e7b3b01 <JSFunction Readable.push (sfi = 0x1571e7b14c9)>]
[optimizing 0x1571e7b38e9 <JSFunction BufferList.push (sfi = 0x1571e7b2f79)> - took 0.046, 0.095, 0.050 ms]
[completed optimizing 0x1571e7b38e9 <JSFunction BufferList.push (sfi = 0x1571e7b2f79)>]
[optimizing 0x2375da6a5eb1 <JSFunction maybeReadMore (sfi = 0x1571e7b0a39)> - took 0.030, 0.063, 0.015 ms]
[completed optimizing 0x2375da6a5eb1 <JSFunction maybeReadMore (sfi = 0x1571e7b0a39)>]
[compiling method 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)> using Crankshaft]
[marking 0x2375da6a5d91 <JSFunction chunkInvalid (sfi = 0x1571e7b06f9)> for optimized recompilation, reason: small function, ICs with typeinfo: 2/6 (33%), generic ICs: 0/6 (0%)]
[compiling method 0x2375da6a5d91 <JSFunction chunkInvalid (sfi = 0x1571e7b06f9)> using Crankshaft]
[optimizing 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)> - took 0.032, 0.094, 0.022 ms]
[completed optimizing 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>]
[optimizing 0x2375da6a5d91 <JSFunction chunkInvalid (sfi = 0x1571e7b06f9)> - took 0.038, 0.064, 0.015 ms]
[completed optimizing 0x2375da6a5d91 <JSFunction chunkInvalid (sfi = 0x1571e7b06f9)>]
[marking 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 33/86 (38%), generic ICs: 0/86 (0%)]
[compiling method 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)> using Crankshaft]
[deoptimizing (DEOPT soft): begin 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)> (opt #3) @5, FP to SP delta: 24, caller sp: 0x7ffc711ff560]
            ;;; deoptimize at <_stream_readable.js:229:24>, Insufficient type feedback for generic named access
  reading input frame needMoreData => node=26, args=2, height=2; inputs:
      0: 0x2375da6a5cb9 ; [fp - 16] 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>
      1: 0x3bccd3c02311 ; [fp + 24] 0x3bccd3c02311 <undefined>
      2: 0x265eaea76fe1 ; rax 0x265eaea76fe1 <ReadableState map = 0x39ddfdba541>
      3: 0x3f0550d656d1 ; [fp - 24] 0x3f0550d656d1 <FixedArray[36]>
      4: 0x3bccd3c02421 ; rdx 0x3bccd3c02421 <false>
  translating frame needMoreData => node=26, height=8
    0x7ffc711ff558: [top + 48] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #1)
    0x7ffc711ff550: [top + 40] <- 0x265eaea76fe1 ;  0x265eaea76fe1 <ReadableState map = 0x39ddfdba541>  (input #2)
    -------------------------
    0x7ffc711ff548: [top + 32] <- 0x2f8b1d9d9fc6 ;  caller's pc
    0x7ffc711ff540: [top + 24] <- 0x7ffc711ff598 ;  caller's fp
    0x7ffc711ff538: [top + 16] <- 0x3f0550d656d1 ;  context    0x3f0550d656d1 <FixedArray[36]>  (input #3)
    0x7ffc711ff530: [top + 8] <- 0x2375da6a5cb9 ;  function    0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>  (input #0)
    -------------------------
    0x7ffc711ff528: [top + 0] <- 0x3bccd3c02421 ;  0x3bccd3c02421 <false>  (input #4)
[deoptimizing (soft): end 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)> @5 => node=26, pc=0x2f8b1d9da864, caller sp=0x7ffc711ff560, state=TOS_REGISTER, took 0.088 ms]
[removing optimized code for: 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>]
[evicting entry from optimizing code map (notify deoptimized) for 0x1571e7b0489 <SharedFunctionInfo needMoreData>]
[marking 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)> for optimized recompilation, reason: small function, ICs with typeinfo: 11/11 (100%), generic ICs: 0/11 (0%)]
[compiling method 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)> using Crankshaft]
[optimizing 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)> - took 0.037, 0.085, 0.034 ms]
[completed optimizing 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>]
[optimizing 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)> - took 0.306, 0.709, 0.117 ms]
[completed optimizing 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)>]
[deoptimizing (DEOPT soft): begin 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)> (opt #5) @56, FP to SP delta: 88, caller sp: 0x7ffc711ff5d8]
            ;;; deoptimize at <_stream_readable.js:229:24>, Insufficient type feedback for generic named access
  reading input frame readableAddChunk => node=708, args=6, height=6; inputs:
      0: 0x2375da6a5c71 ; [fp - 16] 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)>
      1: 0x3bccd3c02311 ; [fp + 56] 0x3bccd3c02311 <undefined>
      2: 0x265eaea76e41 ; [fp + 48] 0x265eaea76e41 <Readable map = 0x39ddfdba7a9>
      3: 0x265eaea76fe1 ; rdx 0x265eaea76fe1 <ReadableState map = 0x39ddfdba541>
      4: 0x3bccd3c02311 ; (literal 9) 0x3bccd3c02311 <undefined>
      5: 0x3bccd3c02311 ; [fp + 24] 0x3bccd3c02311 <undefined>
      6: 0x3bccd3c02421 ; [fp + 16] 0x3bccd3c02421 <false>
      7: 0x3f0550d656d1 ; rax 0x3f0550d656d1 <FixedArray[36]>
      8: 0x3bccd3c02311 ; (literal 9) 0x3bccd3c02311 <undefined>
      9: 0x3bccd3c02311 ; (literal 9) 0x3bccd3c02311 <undefined>
     10: 0x3bccd3c04a41 ; (literal 13) 0x3bccd3c04a41 <Odd Oddball: optimized_out>
     11: 0x3bccd3c02311 ; (literal 9) 0x3bccd3c02311 <undefined>
     12: 0x2375da6a5cb9 ; rbx 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>
  reading input frame needMoreData => node=26, args=2, height=2; inputs:
      0: 0x2375da6a5cb9 ; (literal 19) 0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>
      1: 0x3bccd3c02311 ; (literal 9) 0x3bccd3c02311 <undefined>
      2: 0x265eaea76fe1 ; rdx 0x265eaea76fe1 <ReadableState map = 0x39ddfdba541>
      3: 0x3f0550d656d1 ; (literal 11) 0x3f0550d656d1 <FixedArray[36]>
      4: 0x3bccd3c02421 ; rsi 0x3bccd3c02421 <false>
  translating frame readableAddChunk => node=708, height=40
    0x7ffc711ff5d0: [top + 112] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #1)
    0x7ffc711ff5c8: [top + 104] <- 0x265eaea76e41 ;  0x265eaea76e41 <Readable map = 0x39ddfdba7a9>  (input #2)
    0x7ffc711ff5c0: [top + 96] <- 0x265eaea76fe1 ;  0x265eaea76fe1 <ReadableState map = 0x39ddfdba541>  (input #3)
    0x7ffc711ff5b8: [top + 88] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #4)
    0x7ffc711ff5b0: [top + 80] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #5)
    0x7ffc711ff5a8: [top + 72] <- 0x3bccd3c02421 ;  0x3bccd3c02421 <false>  (input #6)
    -------------------------
    0x7ffc711ff5a0: [top + 64] <- 0x2f8b1d9db26a ;  caller's pc
    0x7ffc711ff598: [top + 56] <- 0x7ffc711ff600 ;  caller's fp
    0x7ffc711ff590: [top + 48] <- 0x3f0550d656d1 ;  context    0x3f0550d656d1 <FixedArray[36]>  (input #7)
    0x7ffc711ff588: [top + 40] <- 0x2375da6a5c71 ;  function    0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)>  (input #0)
    -------------------------
    0x7ffc711ff580: [top + 32] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #8)
    0x7ffc711ff578: [top + 24] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #9)
    0x7ffc711ff570: [top + 16] <- 0x3bccd3c04a41 ;  0x3bccd3c04a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffc711ff568: [top + 8] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #11)
    0x7ffc711ff560: [top + 0] <- 0x2375da6a5cb9 ;  0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>  (input #12)
  translating frame needMoreData => node=26, height=8
    0x7ffc711ff558: [top + 48] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #1)
    0x7ffc711ff550: [top + 40] <- 0x265eaea76fe1 ;  0x265eaea76fe1 <ReadableState map = 0x39ddfdba541>  (input #2)
    -------------------------
    0x7ffc711ff548: [top + 32] <- 0x2f8b1d9d9fc6 ;  caller's pc
    0x7ffc711ff540: [top + 24] <- 0x7ffc711ff598 ;  caller's fp
    0x7ffc711ff538: [top + 16] <- 0x3f0550d656d1 ;  context    0x3f0550d656d1 <FixedArray[36]>  (input #3)
    0x7ffc711ff530: [top + 8] <- 0x2375da6a5cb9 ;  function    0x2375da6a5cb9 <JSFunction needMoreData (sfi = 0x1571e7b0489)>  (input #0)
    -------------------------
    0x7ffc711ff528: [top + 0] <- 0x3bccd3c02421 ;  0x3bccd3c02421 <false>  (input #4)
[deoptimizing (soft): end 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)> @56 => node=26, pc=0x2f8b1d9da864, caller sp=0x7ffc711ff5d8, state=TOS_REGISTER, took 0.222 ms]
[removing optimized code for: 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)>]
[evicting entry from optimizing code map (notify deoptimized) for 0x1571e7b03b9 <SharedFunctionInfo readableAddChunk>]
[marking 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 33/86 (38%), generic ICs: 0/86 (0%)]
[compiling method 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)> using Crankshaft]
[optimizing 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)> - took 0.239, 0.625, 0.122 ms]
[completed optimizing 0x2375da6a5c71 <JSFunction readableAddChunk (sfi = 0x1571e7b03b9)>]
[marking 0x1571e7b2b11 <JSFunction debugs.(anonymous function) (sfi = 0x3d7d93c66ad1)> for optimized recompilation, reason: small function, ICs with typeinfo: 0/0 (100%), generic ICs: 0/0 (0%)]
[compiling method 0x1571e7b2b11 <JSFunction debugs.(anonymous function) (sfi = 0x3d7d93c66ad1)> using Crankshaft]
[marking 0x3d7d93c5a351 <JSFunction Buffer.copy (sfi = 0x3d7d93c4bab9)> for optimized recompilation, reason: small function, ICs with typeinfo: 2/3 (66%), generic ICs: 0/3 (0%)]
[compiling method 0x3d7d93c5a351 <JSFunction Buffer.copy (sfi = 0x3d7d93c4bab9)> using Crankshaft]
[optimizing 0x1571e7b2b11 <JSFunction debugs.(anonymous function) (sfi = 0x3d7d93c66ad1)> - took 0.008, 0.025, 0.007 ms]
[completed optimizing 0x1571e7b2b11 <JSFunction debugs.(anonymous function) (sfi = 0x3d7d93c66ad1)>]
[optimizing 0x3d7d93c5a351 <JSFunction Buffer.copy (sfi = 0x3d7d93c4bab9)> - took 0.025, 0.048, 0.017 ms]
[completed optimizing 0x3d7d93c5a351 <JSFunction Buffer.copy (sfi = 0x3d7d93c4bab9)>]
[marking 0x3f0550d76ec9 <JSFunction allocate (sfi = 0x3d7d93c4a669)> for optimized recompilation, reason: small function, ICs with typeinfo: 11/17 (64%), generic ICs: 0/17 (0%)]
[marking 0x3d7d93c59f09 <JSFunction Buffer.allocUnsafe (sfi = 0x3d7d93c4b439)> for optimized recompilation, reason: small function, ICs with typeinfo: 2/4 (50%), generic ICs: 0/4 (0%)]
[compiling method 0x3d7d93c59f09 <JSFunction Buffer.allocUnsafe (sfi = 0x3d7d93c4b439)> using Crankshaft]
[compiling method 0x3f0550d76ec9 <JSFunction allocate (sfi = 0x3d7d93c4a669)> using Crankshaft]
[optimizing 0x3f0550d76ec9 <JSFunction allocate (sfi = 0x3d7d93c4a669)> - took 0.089, 0.177, 0.087 ms]
[completed optimizing 0x3f0550d76ec9 <JSFunction allocate (sfi = 0x3d7d93c4a669)>]
[optimizing 0x3d7d93c59f09 <JSFunction Buffer.allocUnsafe (sfi = 0x3d7d93c4b439)> - took 0.262, 0.366, 0.079 ms]
[completed optimizing 0x3d7d93c59f09 <JSFunction Buffer.allocUnsafe (sfi = 0x3d7d93c4b439)>]
[marking 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 10/28 (35%), generic ICs: 0/28 (0%)]
[marking 0x2375da6a60f1 <JSFunction fromListPartial (sfi = 0x1571e7b10b9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 10/28 (35%), generic ICs: 0/28 (0%)]
[marking 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 10/36 (27%), generic ICs: 0/36 (0%)]
[marking 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 31/91 (34%), generic ICs: 0/91 (0%)]
[compiling method 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)> using Crankshaft]
[compiling method 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)> using Crankshaft]
[compiling method 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)> using Crankshaft]
[optimizing 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)> - took 0.075, 0.192, 0.041 ms]
[completed optimizing 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)>]
[optimizing 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)> - took 0.646, 1.750, 0.313 ms]
[completed optimizing 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)>]
[optimizing 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)> - took 0.545, 1.110, 0.216 ms]
[completed optimizing 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)>]
[marking 0x3f0550d76f59 <JSFunction alignPool (sfi = 0x3d7d93c4a329)> for optimized recompilation, reason: small function, ICs with typeinfo: 4/4 (100%), generic ICs: 0/4 (0%)]
[compiling method 0x3f0550d76f59 <JSFunction alignPool (sfi = 0x3d7d93c4a329)> using Crankshaft]
[optimizing 0x3f0550d76f59 <JSFunction alignPool (sfi = 0x3d7d93c4a329)> - took 0.018, 0.052, 0.023 ms]
[completed optimizing 0x3f0550d76f59 <JSFunction alignPool (sfi = 0x3d7d93c4a329)>]
[deoptimizing (DEOPT soft): begin 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)> (opt #12) @19, FP to SP delta: 232, caller sp: 0x7ffc711ff660]
            ;;; deoptimize at <_stream_readable.js:358:5>, Insufficient type feedback for generic named access
  reading input frame Readable.read => node=509, args=2, height=5; inputs:
      0: 0x1571e7b3c21 ; [fp - 16] 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)>
      1: 0x735f0b02469 ; [fp + 24] 0x735f0b02469 <Readable map = 0x39ddfdba7a9>
      2: 0x8000000000 ; [fp - 48] 128
      3: 0x3f0550d656d1 ; [fp - 24] 0x3f0550d656d1 <FixedArray[36]>
      4: 0x735f0b02351 ; [fp - 40] 0x735f0b02351 <ReadableState map = 0x39ddfdba541>
      5: 0x8000000000 ; [fp - 32] 128
      6: 0x3bccd3c023b1 ; [fp - 56] 0x3bccd3c023b1 <true>
      7: 0x3bccd3c02311 ; (literal 17) 0x3bccd3c02311 <undefined>
  translating frame Readable.read => node=509, height=32
    0x7ffc711ff658: [top + 72] <- 0x735f0b02469 ;  0x735f0b02469 <Readable map = 0x39ddfdba7a9>  (input #1)
    0x7ffc711ff650: [top + 64] <- 0x8000000000 ;  128  (input #2)
    -------------------------
    0x7ffc711ff648: [top + 56] <- 0x2f8b1d9d745d ;  caller's pc
    0x7ffc711ff640: [top + 48] <- 0x7ffc711ff6a8 ;  caller's fp
    0x7ffc711ff638: [top + 40] <- 0x3f0550d656d1 ;  context    0x3f0550d656d1 <FixedArray[36]>  (input #3)
    0x7ffc711ff630: [top + 32] <- 0x1571e7b3c21 ;  function    0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)>  (input #0)
    -------------------------
    0x7ffc711ff628: [top + 24] <- 0x735f0b02351 ;  0x735f0b02351 <ReadableState map = 0x39ddfdba541>  (input #4)
    0x7ffc711ff620: [top + 16] <- 0x8000000000 ;  128  (input #5)
    0x7ffc711ff618: [top + 8] <- 0x3bccd3c023b1 ;  0x3bccd3c023b1 <true>  (input #6)
    0x7ffc711ff610: [top + 0] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #7)
[deoptimizing (soft): end 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)> @19 => node=509, pc=0x2f8b1d9e03e9, caller sp=0x7ffc711ff660, state=NO_REGISTERS, took 0.115 ms]
[removing optimized code for: 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)>]
[evicting entry from optimizing code map (notify deoptimized) for 0x1571e7b1809 <SharedFunctionInfo Readable.read>]
[deoptimizing (DEOPT soft): begin 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)> (opt #14) @80, FP to SP delta: 192, caller sp: 0x7ffc711ff608]
            ;;; deoptimize at <_stream_readable.js:865:20>, Insufficient type feedback for generic named access
  reading input frame fromList => node=71, args=3, height=2; inputs:
      0: 0x2375da6a60a9 ; [fp - 16] 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)>
      1: 0x3bccd3c02311 ; [fp + 32] 0x3bccd3c02311 <undefined>
      2: 0x8000000000 ; [fp + 24] 128
      3: 0x735f0b02351 ; [fp + 16] 0x735f0b02351 <ReadableState map = 0x39ddfdba541>
      4: 0x3f0550d656d1 ; [fp - 24] 0x3f0550d656d1 <FixedArray[36]>
      5: 0x3bccd3c02311 ; (literal 19) 0x3bccd3c02311 <undefined>
  translating frame fromList => node=71, height=8
    0x7ffc711ff600: [top + 56] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #1)
    0x7ffc711ff5f8: [top + 48] <- 0x8000000000 ;  128  (input #2)
    0x7ffc711ff5f0: [top + 40] <- 0x735f0b02351 ;  0x735f0b02351 <ReadableState map = 0x39ddfdba541>  (input #3)
    -------------------------
    0x7ffc711ff5e8: [top + 32] <- 0x2f8b1d9e05fd ;  caller's pc
    0x7ffc711ff5e0: [top + 24] <- 0x7ffc711ff640 ;  caller's fp
    0x7ffc711ff5d8: [top + 16] <- 0x3f0550d656d1 ;  context    0x3f0550d656d1 <FixedArray[36]>  (input #4)
    0x7ffc711ff5d0: [top + 8] <- 0x2375da6a60a9 ;  function    0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)>  (input #0)
    -------------------------
    0x7ffc711ff5c8: [top + 0] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #5)
[deoptimizing (soft): end 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)> @80 => node=71, pc=0x2f8b1d9e0f47, caller sp=0x7ffc711ff608, state=NO_REGISTERS, took 0.097 ms]
[removing optimized code for: 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)>]
[evicting entry from optimizing code map (notify deoptimized) for 0x1571e7b0fe9 <SharedFunctionInfo fromList>]
[deoptimizing (DEOPT soft): begin 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)> (opt #13) @3, FP to SP delta: 40, caller sp: 0x7ffc711ff608]
            ;;; deoptimize at <_stream_readable.js:263:31>, Insufficient type feedback for generic named access
  reading input frame howMuchToRead => node=23, args=3, height=1; inputs:
      0: 0x2375da6a5d49 ; [fp - 16] 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)>
      1: 0x3bccd3c02311 ; [fp + 32] 0x3bccd3c02311 <undefined>
      2: 0x8000000000 ; [fp + 24] 128
      3: 0x735f0b02351 ; r8 0x735f0b02351 <ReadableState map = 0x39ddfdba541>
      4: 0x3f0550d656d1 ; [fp - 24] 0x3f0550d656d1 <FixedArray[36]>
  translating frame howMuchToRead => node=23, height=0
    0x7ffc711ff600: [top + 48] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #1)
    0x7ffc711ff5f8: [top + 40] <- 0x8000000000 ;  128  (input #2)
    0x7ffc711ff5f0: [top + 32] <- 0x735f0b02351 ;  0x735f0b02351 <ReadableState map = 0x39ddfdba541>  (input #3)
    -------------------------
    0x7ffc711ff5e8: [top + 24] <- 0x2f8b1d9e0010 ;  caller's pc
    0x7ffc711ff5e0: [top + 16] <- 0x7ffc711ff640 ;  caller's fp
    0x7ffc711ff5d8: [top + 8] <- 0x3f0550d656d1 ;  context    0x3f0550d656d1 <FixedArray[36]>  (input #4)
    0x7ffc711ff5d0: [top + 0] <- 0x2375da6a5d49 ;  function    0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)>  (input #0)
    -------------------------
[deoptimizing (soft): end 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)> @3 => node=23, pc=0x2f8b1d9e098e, caller sp=0x7ffc711ff608, state=NO_REGISTERS, took 0.078 ms]
[removing optimized code for: 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)>]
[evicting entry from optimizing code map (notify deoptimized) for 0x1571e7b0629 <SharedFunctionInfo howMuchToRead>]
[compiling method 0x2375da6a60f1 <JSFunction fromListPartial (sfi = 0x1571e7b10b9)> using Crankshaft]
[marking 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 43/91 (47%), generic ICs: 0/91 (0%)]
[compiling method 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)> using Crankshaft]
[optimizing 0x2375da6a60f1 <JSFunction fromListPartial (sfi = 0x1571e7b10b9)> - took 0.433, 0.915, 0.189 ms]
[completed optimizing 0x2375da6a60f1 <JSFunction fromListPartial (sfi = 0x1571e7b10b9)>]
[marking 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 12/28 (42%), generic ICs: 0/28 (0%)]
[compiling method 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)> using Crankshaft]
[optimizing 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)> - took 0.065, 0.171, 0.031 ms]
[completed optimizing 0x2375da6a5d49 <JSFunction howMuchToRead (sfi = 0x1571e7b0629)>]
[marking 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 14/36 (38%), generic ICs: 0/36 (0%)]
[compiling method 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)> using Crankshaft]
[optimizing 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)> - took 0.555, 1.801, 0.306 ms]
[completed optimizing 0x1571e7b3c21 <JSFunction Readable.read (sfi = 0x1571e7b1809)>]
[optimizing 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)> - took 0.397, 1.120, 0.205 ms]
[completed optimizing 0x2375da6a60a9 <JSFunction fromList (sfi = 0x1571e7b0fe9)>]
[marking 0x221231a4b231 <JSFunction main (sfi = 0x2375da6de421)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 14/25 (56%), generic ICs: 0/25 (0%)]
[marking 0x3f0550d76f11 <JSFunction FastBuffer (sfi = 0x3d7d93c4b1c9)> for optimized recompilation, reason: small function, ICs with typeinfo: 1/1 (100%), generic ICs: 0/1 (0%)]
[compiling method 0x3f0550d76f11 <JSFunction FastBuffer (sfi = 0x3d7d93c4b1c9)> using TurboFan]
[optimizing 0x3f0550d76f11 <JSFunction FastBuffer (sfi = 0x3d7d93c4b1c9)> - took 0.125, 0.224, 0.029 ms]
[completed optimizing 0x3f0550d76f11 <JSFunction FastBuffer (sfi = 0x3d7d93c4b1c9)>]
[compiling method 0x221231a4b231 <JSFunction main (sfi = 0x2375da6de421)> using Crankshaft OSR]
[optimizing 0x221231a4b231 <JSFunction main (sfi = 0x2375da6de421)> - took 0.291, 0.436, 0.099 ms]
[marking 0x3f0550d1fc99 <JSFunction createPool (sfi = 0x3d7d93c4a259)> for optimized recompilation, reason: small function, ICs with typeinfo: 2/3 (66%), generic ICs: 0/3 (0%)]
[compiling method 0x3f0550d1fc99 <JSFunction createPool (sfi = 0x3d7d93c4a259)> using Crankshaft]
[optimizing 0x3f0550d1fc99 <JSFunction createPool (sfi = 0x3d7d93c4a259)> - took 0.030, 0.044, 0.042 ms]
[completed optimizing 0x3f0550d1fc99 <JSFunction createPool (sfi = 0x3d7d93c4a259)>]
[marking 0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 19/69 (27%), generic ICs: 1/69 (1%)]
[compiling method 0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)> using Crankshaft]
[optimizing 0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)> - took 0.330, 0.716, 0.140 ms]
[completed optimizing 0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)>]
[marking 0x221231a4b1e9 <JSFunction noop (sfi = 0x2375da6ede41)> for optimized recompilation, reason: small function, ICs with typeinfo: 0/0 (100%), generic ICs: 0/0 (0%)]
[marking 0x1571e7b39c1 <JSFunction BufferList.clear (sfi = 0x1571e7b31e9)> for optimized recompilation, reason: small function, ICs with typeinfo: 3/3 (100%), generic ICs: 0/3 (0%)]
[marking 0x2375da6a5e69 <JSFunction emitReadable_ (sfi = 0x1571e7b0969)> for optimized recompilation, reason: small function, ICs with typeinfo: 4/7 (57%), generic ICs: 0/7 (0%)]
[marking 0x2375da6a5e21 <JSFunction emitReadable (sfi = 0x1571e7b0899)> for optimized recompilation, reason: small function, ICs with typeinfo: 11/16 (68%), generic ICs: 0/16 (0%)]
[compiling method 0x221231a4b1e9 <JSFunction noop (sfi = 0x2375da6ede41)> using Crankshaft]
[optimizing 0x221231a4b1e9 <JSFunction noop (sfi = 0x2375da6ede41)> - took 0.026, 0.043, 0.014 ms]
[completed optimizing 0x221231a4b1e9 <JSFunction noop (sfi = 0x2375da6ede41)>]
[compiling method 0x1571e7b39c1 <JSFunction BufferList.clear (sfi = 0x1571e7b31e9)> using Crankshaft]
[compiling method 0x2375da6a5e21 <JSFunction emitReadable (sfi = 0x1571e7b0899)> using Crankshaft]
[optimizing 0x1571e7b39c1 <JSFunction BufferList.clear (sfi = 0x1571e7b31e9)> - took 0.027, 0.036, 0.013 ms]
[completed optimizing 0x1571e7b39c1 <JSFunction BufferList.clear (sfi = 0x1571e7b31e9)>]
[optimizing 0x2375da6a5e21 <JSFunction emitReadable (sfi = 0x1571e7b0899)> - took 0.158, 0.174, 0.042 ms]
[completed optimizing 0x2375da6a5e21 <JSFunction emitReadable (sfi = 0x1571e7b0899)>]
[marking 0x3d7d93c1a591 <JSFunction Uint8Array (sfi = 0x3bccd3c12c89)> for optimized recompilation, reason: not much type info but very hot, ICs with typeinfo: 1/9 (11%), generic ICs: 0/9 (0%)]
[compiling method 0x3d7d93c1a591 <JSFunction Uint8Array (sfi = 0x3bccd3c12c89)> using TurboFan]
[optimizing 0x3d7d93c1a591 <JSFunction Uint8Array (sfi = 0x3bccd3c12c89)> - took 0.163, 0.407, 0.046 ms]
[completed optimizing 0x3d7d93c1a591 <JSFunction Uint8Array (sfi = 0x3bccd3c12c89)>]
[marking 0x3f0550d1fce1 <JSFunction createUnsafeArrayBuffer (sfi = 0x3d7d93c4a189)> for optimized recompilation, reason: hot and stable, ICs with typeinfo: 4/4 (100%), generic ICs: 2/4 (50%)]
[compiling method 0x3f0550d1fce1 <JSFunction createUnsafeArrayBuffer (sfi = 0x3d7d93c4a189)> using TurboFan]
[optimizing 0x3f0550d1fce1 <JSFunction createUnsafeArrayBuffer (sfi = 0x3d7d93c4a189)> - took 0.133, 0.262, 0.035 ms]
[completed optimizing 0x3f0550d1fce1 <JSFunction createUnsafeArrayBuffer (sfi = 0x3d7d93c4a189)>]
[deoptimize marked code in all contexts]
[deoptimizing (DEOPT eager): begin 0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)> (opt #23) @2, FP to SP delta: 144, caller sp: 0x7ffc711ff860]
            ;;; deoptimize at <events.js:160:23>, wrong instance type
  reading input frame emit => node=4, args=2, height=15; inputs:
      0: 0x3d7d93c3de39 ; [fp - 16] 0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)>
      1: 0x1571e7f7ac9 ; [fp + 24] 0x1571e7f7ac9 <process map = 0x39ddfd91e51>
      2: 0xdae62b5f1b1 ; r8 0xdae62b5f1b1 <String[10]: beforeExit>
      3: 0x3f0550d06f79 ; [fp - 24] 0x3f0550d06f79 <FixedArray[22]>
      4: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
      5: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
      6: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
      7: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
      8: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
      9: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
     10: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
     11: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
     12: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
     13: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
     14: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
     15: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
     16: arguments object #0 (length = 1)
           0xdae62b5f1b1 ; r8 0xdae62b5f1b1 <String[10]: beforeExit>
     17: 0x3bccd3c02311 ; (literal 5) 0x3bccd3c02311 <undefined>
  translating frame emit => node=4, height=112
    0x7ffc711ff858: [top + 152] <- 0x1571e7f7ac9 ;  0x1571e7f7ac9 <process map = 0x39ddfd91e51>  (input #1)
    0x7ffc711ff850: [top + 144] <- 0xdae62b5f1b1 ;  0xdae62b5f1b1 <String[10]: beforeExit>  (input #2)
    -------------------------
    0x7ffc711ff848: [top + 136] <- 0x2f8b1d805a7b ;  caller's pc
    0x7ffc711ff840: [top + 128] <- 0x7ffc711ff878 ;  caller's fp
    0x7ffc711ff838: [top + 120] <- 0x3f0550d06f79 ;  context    0x3f0550d06f79 <FixedArray[22]>  (input #3)
    0x7ffc711ff830: [top + 112] <- 0x3d7d93c3de39 ;  function    0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)>  (input #0)
    -------------------------
    0x7ffc711ff828: [top + 104] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #4)
    0x7ffc711ff820: [top + 96] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #5)
    0x7ffc711ff818: [top + 88] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #6)
    0x7ffc711ff810: [top + 80] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #7)
    0x7ffc711ff808: [top + 72] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #8)
    0x7ffc711ff800: [top + 64] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #9)
    0x7ffc711ff7f8: [top + 56] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #10)
    0x7ffc711ff7f0: [top + 48] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #11)
    0x7ffc711ff7e8: [top + 40] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #12)
    0x7ffc711ff7e0: [top + 32] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #13)
    0x7ffc711ff7d8: [top + 24] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #14)
    0x7ffc711ff7d0: [top + 16] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #15)
    0x7ffc711ff7c8: [top + 8] <- 0x3bccd3c02489 ;  0x3bccd3c02489 <Odd Oddball: arguments_marker>  (input #16)
    0x7ffc711ff7c0: [top + 0] <- 0x3bccd3c02311 ;  0x3bccd3c02311 <undefined>  (input #17)
[deoptimizing (eager): end 0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)> @2 => node=4, pc=0x2f8b1d99b5f1, caller sp=0x7ffc711ff860, state=NO_REGISTERS, took 0.238 ms]
Materialization [0x7ffc711ff7c8] <- 0xdae62b5f1f9 ;  0xdae62b5f1f9 <Arguments map = 0x39ddfd88559>
[removing optimized code for: 0x3d7d93c3de39 <JSFunction emit (sfi = 0x3d7d93c3c8b9)>]
[evicting entry from optimizing code map (notify deoptimized) for 0x3d7d93c3c8b9 <SharedFunctionInfo emit>]
streams/readable-bigread.js n=1000: 544.0521844757741

[vsemozhetbyt]

crypto:

                                                                                                           improvement confidence      p.value
 crypto\\aes-gcm-throughput.js len=1024 cipher="aes-128-gcm" n=500                                             -1.34 %            2.008362e-01
 crypto\\aes-gcm-throughput.js len=1024 cipher="aes-192-gcm" n=500                                             -1.76 %        *** 6.105588e-05
 crypto\\aes-gcm-throughput.js len=1024 cipher="aes-256-gcm" n=500                                             -0.49 %            1.088602e-01
 crypto\\aes-gcm-throughput.js len=1048576 cipher="aes-128-gcm" n=500                                           0.01 %            8.729326e-01
 crypto\\aes-gcm-throughput.js len=1048576 cipher="aes-192-gcm" n=500                                           0.01 %            7.609731e-01
 crypto\\aes-gcm-throughput.js len=1048576 cipher="aes-256-gcm" n=500                                           0.00 %            8.910439e-01
 crypto\\aes-gcm-throughput.js len=16384 cipher="aes-128-gcm" n=500                                            -0.33 %         ** 3.563550e-03
 crypto\\aes-gcm-throughput.js len=16384 cipher="aes-192-gcm" n=500                                            -0.23 %          * 2.752174e-02
 crypto\\aes-gcm-throughput.js len=16384 cipher="aes-256-gcm" n=500                                            -0.23 %          * 1.518756e-02
 crypto\\aes-gcm-throughput.js len=262144 cipher="aes-128-gcm" n=500                                           -0.01 %            8.661866e-01
 crypto\\aes-gcm-throughput.js len=262144 cipher="aes-192-gcm" n=500                                            0.02 %            5.514443e-01
 crypto\\aes-gcm-throughput.js len=262144 cipher="aes-256-gcm" n=500                                           -0.01 %            8.078032e-01
 crypto\\aes-gcm-throughput.js len=4096 cipher="aes-128-gcm" n=500                                             -0.75 %         ** 3.928503e-03
 crypto\\aes-gcm-throughput.js len=4096 cipher="aes-192-gcm" n=500                                             -0.51 %          * 1.274996e-02
 crypto\\aes-gcm-throughput.js len=4096 cipher="aes-256-gcm" n=500                                             -0.23 %            8.112453e-02
 crypto\\aes-gcm-throughput.js len=65536 cipher="aes-128-gcm" n=500                                            -0.06 %            2.579998e-01
 crypto\\aes-gcm-throughput.js len=65536 cipher="aes-192-gcm" n=500                                            -0.13 %         ** 2.475176e-03
 crypto\\aes-gcm-throughput.js len=65536 cipher="aes-256-gcm" n=500                                            -0.14 %            6.502890e-02
 crypto\\cipher-stream.js api="legacy" len=1024 type="asc" cipher="AES192" writes=500                          -2.27 %         ** 4.322578e-03
 crypto\\cipher-stream.js api="legacy" len=1024 type="asc" cipher="AES256" writes=500                          -2.03 %         ** 1.164358e-03
 crypto\\cipher-stream.js api="legacy" len=1024 type="buf" cipher="AES192" writes=500                          -0.32 %            6.765303e-01
 crypto\\cipher-stream.js api="legacy" len=1024 type="buf" cipher="AES256" writes=500                          -1.28 %            1.146873e-01
 crypto\\cipher-stream.js api="legacy" len=1024 type="utf" cipher="AES192" writes=500                          -1.96 %        *** 6.367061e-04
 crypto\\cipher-stream.js api="legacy" len=1024 type="utf" cipher="AES256" writes=500                          -2.49 %        *** 1.820829e-04
 crypto\\cipher-stream.js api="legacy" len=102400 type="asc" cipher="AES192" writes=500                         0.06 %            2.687392e-01
 crypto\\cipher-stream.js api="legacy" len=102400 type="asc" cipher="AES256" writes=500                         0.03 %            5.501526e-01
 crypto\\cipher-stream.js api="legacy" len=102400 type="buf" cipher="AES192" writes=500                        -0.06 %            4.551686e-01
 crypto\\cipher-stream.js api="legacy" len=102400 type="buf" cipher="AES256" writes=500                         0.04 %            6.114770e-01
 crypto\\cipher-stream.js api="legacy" len=102400 type="utf" cipher="AES192" writes=500                         0.27 %          * 4.199251e-02
 crypto\\cipher-stream.js api="legacy" len=102400 type="utf" cipher="AES256" writes=500                        -0.05 %            7.176492e-01
 crypto\\cipher-stream.js api="legacy" len=1048576 type="asc" cipher="AES192" writes=500                        0.05 %            3.266881e-01
 crypto\\cipher-stream.js api="legacy" len=1048576 type="asc" cipher="AES256" writes=500                       -0.00 %            9.687600e-01
 crypto\\cipher-stream.js api="legacy" len=1048576 type="buf" cipher="AES192" writes=500                        0.01 %            9.070688e-01
 crypto\\cipher-stream.js api="legacy" len=1048576 type="buf" cipher="AES256" writes=500                       -0.06 %            1.409447e-01
 crypto\\cipher-stream.js api="legacy" len=1048576 type="utf" cipher="AES192" writes=500                        0.07 %            1.516167e-01
 crypto\\cipher-stream.js api="legacy" len=1048576 type="utf" cipher="AES256" writes=500                        0.04 %            3.967762e-01
 crypto\\cipher-stream.js api="legacy" len=2 type="asc" cipher="AES192" writes=500                              5.54 %        *** 2.578368e-11
 crypto\\cipher-stream.js api="legacy" len=2 type="asc" cipher="AES256" writes=500                              3.42 %        *** 6.892730e-04
 crypto\\cipher-stream.js api="legacy" len=2 type="buf" cipher="AES192" writes=500                              8.90 %        *** 1.607449e-09
 crypto\\cipher-stream.js api="legacy" len=2 type="buf" cipher="AES256" writes=500                              8.68 %        *** 2.559520e-11
 crypto\\cipher-stream.js api="legacy" len=2 type="utf" cipher="AES192" writes=500                              6.22 %        *** 1.322188e-04
 crypto\\cipher-stream.js api="legacy" len=2 type="utf" cipher="AES256" writes=500                              7.73 %        *** 2.883640e-07
 crypto\\cipher-stream.js api="stream" len=1024 type="asc" cipher="AES192" writes=500                          37.75 %        *** 7.868070e-55
 crypto\\cipher-stream.js api="stream" len=1024 type="asc" cipher="AES256" writes=500                          35.00 %        *** 5.729272e-48
 crypto\\cipher-stream.js api="stream" len=1024 type="buf" cipher="AES192" writes=500                          38.44 %        *** 7.777798e-55
 crypto\\cipher-stream.js api="stream" len=1024 type="buf" cipher="AES256" writes=500                          38.12 %        *** 7.210712e-36
 crypto\\cipher-stream.js api="stream" len=1024 type="utf" cipher="AES192" writes=500                          35.99 %        *** 3.588144e-40
 crypto\\cipher-stream.js api="stream" len=1024 type="utf" cipher="AES256" writes=500                          34.08 %        *** 3.980118e-42
 crypto\\cipher-stream.js api="stream" len=102400 type="asc" cipher="AES192" writes=500                         0.55 %        *** 6.049083e-11
 crypto\\cipher-stream.js api="stream" len=102400 type="asc" cipher="AES256" writes=500                         0.40 %        *** 5.015076e-10
 crypto\\cipher-stream.js api="stream" len=102400 type="buf" cipher="AES192" writes=500                         1.27 %        *** 1.261991e-16
 crypto\\cipher-stream.js api="stream" len=102400 type="buf" cipher="AES256" writes=500                         0.99 %        *** 2.337270e-12
 crypto\\cipher-stream.js api="stream" len=102400 type="utf" cipher="AES192" writes=500                         1.79 %        *** 1.193247e-33
 crypto\\cipher-stream.js api="stream" len=102400 type="utf" cipher="AES256" writes=500                         1.57 %        *** 1.972025e-31
 crypto\\cipher-stream.js api="stream" len=1048576 type="asc" cipher="AES192" writes=500                        0.11 %         ** 8.772521e-03
 crypto\\cipher-stream.js api="stream" len=1048576 type="asc" cipher="AES256" writes=500                        0.17 %        *** 1.635410e-05
 crypto\\cipher-stream.js api="stream" len=1048576 type="buf" cipher="AES192" writes=500                        0.30 %        *** 6.311005e-05
 crypto\\cipher-stream.js api="stream" len=1048576 type="buf" cipher="AES256" writes=500                        0.21 %        *** 1.587788e-06
 crypto\\cipher-stream.js api="stream" len=1048576 type="utf" cipher="AES192" writes=500                       -0.00 %            9.682333e-01
 crypto\\cipher-stream.js api="stream" len=1048576 type="utf" cipher="AES256" writes=500                        0.18 %        *** 6.529919e-04
 crypto\\cipher-stream.js api="stream" len=2 type="asc" cipher="AES192" writes=500                             88.27 %        *** 1.695861e-29
 crypto\\cipher-stream.js api="stream" len=2 type="asc" cipher="AES256" writes=500                             90.60 %        *** 5.931321e-51
 crypto\\cipher-stream.js api="stream" len=2 type="buf" cipher="AES192" writes=500                             99.13 %        *** 7.507449e-58
 crypto\\cipher-stream.js api="stream" len=2 type="buf" cipher="AES256" writes=500                            101.35 %        *** 5.881141e-46
 crypto\\cipher-stream.js api="stream" len=2 type="utf" cipher="AES192" writes=500                             97.00 %        *** 7.438330e-69
 crypto\\cipher-stream.js api="stream" len=2 type="utf" cipher="AES256" writes=500                             90.22 %        *** 4.998708e-28
 crypto\\get-ciphers.js v="crypto" n=1                                                                         15.29 %         ** 1.758208e-03
 crypto\\get-ciphers.js v="crypto" n=5000                                                                     -11.54 %        *** 2.136780e-18
 crypto\\get-ciphers.js v="tls" n=1                                                                             5.83 %          * 4.146339e-02
 crypto\\get-ciphers.js v="tls" n=5000                                                                        -12.78 %        *** 2.473264e-26
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="binary" type="asc" algo="md5" writes=500            8.61 %        *** 4.445789e-13
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="binary" type="asc" algo="sha256" writes=500        10.33 %        *** 3.100697e-14
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="binary" type="buf" algo="md5" writes=500           12.61 %        *** 3.827775e-13
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="binary" type="buf" algo="sha256" writes=500        12.36 %        *** 3.089916e-20
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="binary" type="utf" algo="md5" writes=500            7.33 %        *** 1.377767e-11
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="binary" type="utf" algo="sha256" writes=500         5.64 %        *** 1.377005e-13
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="buffer" type="asc" algo="md5" writes=500            7.95 %        *** 1.144126e-08
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="buffer" type="asc" algo="sha256" writes=500         4.28 %        *** 1.960466e-08
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="buffer" type="buf" algo="md5" writes=500            7.25 %        *** 2.335139e-14
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="buffer" type="buf" algo="sha256" writes=500         6.96 %        *** 6.526236e-13
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="buffer" type="utf" algo="md5" writes=500            2.45 %            5.100459e-02
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="buffer" type="utf" algo="sha256" writes=500         3.90 %        *** 5.013426e-06
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="hex" type="asc" algo="md5" writes=500              13.90 %        *** 4.209863e-13
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="hex" type="asc" algo="sha256" writes=500            5.60 %        *** 6.627797e-05
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="hex" type="buf" algo="md5" writes=500              15.32 %        *** 2.948900e-27
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="hex" type="buf" algo="sha256" writes=500           11.48 %        *** 1.054817e-26
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="hex" type="utf" algo="md5" writes=500               9.51 %        *** 5.914156e-14
 crypto\\hash-stream-creation.js api="legacy" len=1024 out="hex" type="utf" algo="sha256" writes=500            8.52 %        *** 5.624055e-14
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="binary" type="asc" algo="md5" writes=500          0.50 %        *** 5.938825e-04
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="binary" type="asc" algo="sha256" writes=500       0.07 %            5.037972e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="binary" type="buf" algo="md5" writes=500          0.47 %         ** 1.827676e-03
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="binary" type="buf" algo="sha256" writes=500       0.13 %            2.197848e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="binary" type="utf" algo="md5" writes=500          0.11 %            3.048700e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="binary" type="utf" algo="sha256" writes=500       0.14 %            6.242277e-02
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="buffer" type="asc" algo="md5" writes=500          0.01 %            9.354604e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="buffer" type="asc" algo="sha256" writes=500       0.01 %            9.351803e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="buffer" type="buf" algo="md5" writes=500          0.31 %          * 1.153133e-02
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="buffer" type="buf" algo="sha256" writes=500       0.02 %            8.597603e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="buffer" type="utf" algo="md5" writes=500          0.21 %            2.860554e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="buffer" type="utf" algo="sha256" writes=500      -0.38 %            3.563223e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="hex" type="asc" algo="md5" writes=500             0.06 %            6.448463e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="hex" type="asc" algo="sha256" writes=500          0.05 %            6.152511e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="hex" type="buf" algo="md5" writes=500             0.59 %        *** 1.713979e-05
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="hex" type="buf" algo="sha256" writes=500          0.14 %            4.088846e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="hex" type="utf" algo="md5" writes=500             0.16 %            1.399331e-01
 crypto\\hash-stream-creation.js api="legacy" len=102400 out="hex" type="utf" algo="sha256" writes=500          0.12 %            2.829152e-01
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="binary" type="asc" algo="md5" writes=500        -0.12 %            1.761382e-01
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="binary" type="asc" algo="sha256" writes=500     -0.08 %            6.375372e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="binary" type="buf" algo="md5" writes=500         0.06 %            3.900720e-01
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="binary" type="buf" algo="sha256" writes=500     -0.28 %            5.014478e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="binary" type="utf" algo="md5" writes=500        -0.19 %            9.346442e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="binary" type="utf" algo="sha256" writes=500     -0.14 %          * 1.130010e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="buffer" type="asc" algo="md5" writes=500        -0.11 %            1.524351e-01
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="buffer" type="asc" algo="sha256" writes=500     -0.15 %         ** 3.876734e-03
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="buffer" type="buf" algo="md5" writes=500        -0.19 %        *** 1.651618e-04
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="buffer" type="buf" algo="sha256" writes=500     -0.18 %          * 1.208016e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="buffer" type="utf" algo="md5" writes=500        -0.12 %          * 2.766830e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="buffer" type="utf" algo="sha256" writes=500     -0.40 %            9.624380e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="hex" type="asc" algo="md5" writes=500           -0.01 %            9.311843e-01
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="hex" type="asc" algo="sha256" writes=500        -0.19 %         ** 3.075457e-03
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="hex" type="buf" algo="md5" writes=500            0.01 %            8.336304e-01
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="hex" type="buf" algo="sha256" writes=500        -0.23 %          * 4.322421e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="hex" type="utf" algo="md5" writes=500           -0.21 %          * 3.700578e-02
 crypto\\hash-stream-creation.js api="legacy" len=1048576 out="hex" type="utf" algo="sha256" writes=500        -0.19 %        *** 2.262816e-04
 crypto\\hash-stream-creation.js api="legacy" len=2 out="binary" type="asc" algo="md5" writes=500              13.65 %        *** 1.698852e-12
 crypto\\hash-stream-creation.js api="legacy" len=2 out="binary" type="asc" algo="sha256" writes=500           11.70 %        *** 4.506819e-09
 crypto\\hash-stream-creation.js api="legacy" len=2 out="binary" type="buf" algo="md5" writes=500              14.49 %        *** 1.069548e-15
 crypto\\hash-stream-creation.js api="legacy" len=2 out="binary" type="buf" algo="sha256" writes=500           15.73 %        *** 1.086340e-13
 crypto\\hash-stream-creation.js api="legacy" len=2 out="binary" type="utf" algo="md5" writes=500              12.82 %        *** 5.458121e-13
 crypto\\hash-stream-creation.js api="legacy" len=2 out="binary" type="utf" algo="sha256" writes=500           12.38 %        *** 7.427945e-16
 crypto\\hash-stream-creation.js api="legacy" len=2 out="buffer" type="asc" algo="md5" writes=500               6.95 %        *** 3.609112e-09
 crypto\\hash-stream-creation.js api="legacy" len=2 out="buffer" type="asc" algo="sha256" writes=500            7.82 %        *** 7.002135e-09
 crypto\\hash-stream-creation.js api="legacy" len=2 out="buffer" type="buf" algo="md5" writes=500               7.37 %        *** 7.894505e-09
 crypto\\hash-stream-creation.js api="legacy" len=2 out="buffer" type="buf" algo="sha256" writes=500            9.37 %        *** 5.652820e-10
 crypto\\hash-stream-creation.js api="legacy" len=2 out="buffer" type="utf" algo="md5" writes=500               7.48 %        *** 2.174667e-13
 crypto\\hash-stream-creation.js api="legacy" len=2 out="buffer" type="utf" algo="sha256" writes=500            9.62 %        *** 3.523841e-10
 crypto\\hash-stream-creation.js api="legacy" len=2 out="hex" type="asc" algo="md5" writes=500                 15.53 %        *** 1.817075e-11
 crypto\\hash-stream-creation.js api="legacy" len=2 out="hex" type="asc" algo="sha256" writes=500              17.23 %        *** 9.297594e-21
 crypto\\hash-stream-creation.js api="legacy" len=2 out="hex" type="buf" algo="md5" writes=500                 17.99 %        *** 2.242151e-24
 crypto\\hash-stream-creation.js api="legacy" len=2 out="hex" type="buf" algo="sha256" writes=500              21.27 %        *** 4.644569e-20
 crypto\\hash-stream-creation.js api="legacy" len=2 out="hex" type="utf" algo="md5" writes=500                 14.70 %        *** 5.518580e-22
 crypto\\hash-stream-creation.js api="legacy" len=2 out="hex" type="utf" algo="sha256" writes=500              17.34 %        *** 1.027407e-17
 crypto\\hash-stream-creation.js api="stream" len=1024 out="binary" type="asc" algo="md5" writes=500           43.58 %        *** 3.218892e-57
 crypto\\hash-stream-creation.js api="stream" len=1024 out="binary" type="asc" algo="sha256" writes=500        41.21 %        *** 1.284450e-52
 crypto\\hash-stream-creation.js api="stream" len=1024 out="binary" type="buf" algo="md5" writes=500           42.94 %        *** 5.088858e-48
 crypto\\hash-stream-creation.js api="stream" len=1024 out="binary" type="buf" algo="sha256" writes=500        40.12 %        *** 2.242535e-50
 crypto\\hash-stream-creation.js api="stream" len=1024 out="binary" type="utf" algo="md5" writes=500           39.91 %        *** 6.941887e-44
 crypto\\hash-stream-creation.js api="stream" len=1024 out="binary" type="utf" algo="sha256" writes=500        38.48 %        *** 5.735116e-47
 crypto\\hash-stream-creation.js api="stream" len=1024 out="buffer" type="asc" algo="md5" writes=500           34.82 %        *** 3.472023e-45
 crypto\\hash-stream-creation.js api="stream" len=1024 out="buffer" type="asc" algo="sha256" writes=500        32.94 %        *** 1.279428e-51
 crypto\\hash-stream-creation.js api="stream" len=1024 out="buffer" type="buf" algo="md5" writes=500           35.03 %        *** 7.143992e-46
 crypto\\hash-stream-creation.js api="stream" len=1024 out="buffer" type="buf" algo="sha256" writes=500        31.56 %        *** 5.478611e-61
 crypto\\hash-stream-creation.js api="stream" len=1024 out="buffer" type="utf" algo="md5" writes=500           32.15 %        *** 1.245974e-59
 crypto\\hash-stream-creation.js api="stream" len=1024 out="buffer" type="utf" algo="sha256" writes=500        30.46 %        *** 6.139746e-46
 crypto\\hash-stream-creation.js api="stream" len=1024 out="hex" type="asc" algo="md5" writes=500              43.45 %        *** 7.597719e-49
 crypto\\hash-stream-creation.js api="stream" len=1024 out="hex" type="asc" algo="sha256" writes=500           42.64 %        *** 3.231487e-44
 crypto\\hash-stream-creation.js api="stream" len=1024 out="hex" type="buf" algo="md5" writes=500              44.31 %        *** 2.302064e-37
 crypto\\hash-stream-creation.js api="stream" len=1024 out="hex" type="buf" algo="sha256" writes=500           41.18 %        *** 6.470348e-58
 crypto\\hash-stream-creation.js api="stream" len=1024 out="hex" type="utf" algo="md5" writes=500              40.12 %        *** 3.961598e-54
 crypto\\hash-stream-creation.js api="stream" len=1024 out="hex" type="utf" algo="sha256" writes=500           37.90 %        *** 5.165523e-57
 crypto\\hash-stream-creation.js api="stream" len=102400 out="binary" type="asc" algo="md5" writes=500         15.06 %        *** 3.581052e-55
 crypto\\hash-stream-creation.js api="stream" len=102400 out="binary" type="asc" algo="sha256" writes=500       6.92 %        *** 5.385554e-48
 crypto\\hash-stream-creation.js api="stream" len=102400 out="binary" type="buf" algo="md5" writes=500         14.20 %        *** 1.316644e-58
 crypto\\hash-stream-creation.js api="stream" len=102400 out="binary" type="buf" algo="sha256" writes=500       6.17 %        *** 1.015737e-31
 crypto\\hash-stream-creation.js api="stream" len=102400 out="binary" type="utf" algo="md5" writes=500         10.90 %        *** 1.081533e-56
 crypto\\hash-stream-creation.js api="stream" len=102400 out="binary" type="utf" algo="sha256" writes=500       5.84 %        *** 1.197593e-43
 crypto\\hash-stream-creation.js api="stream" len=102400 out="buffer" type="asc" algo="md5" writes=500         12.36 %        *** 5.491091e-37
 crypto\\hash-stream-creation.js api="stream" len=102400 out="buffer" type="asc" algo="sha256" writes=500       5.64 %        *** 7.518869e-50
 crypto\\hash-stream-creation.js api="stream" len=102400 out="buffer" type="buf" algo="md5" writes=500         11.11 %        *** 2.461118e-48
 crypto\\hash-stream-creation.js api="stream" len=102400 out="buffer" type="buf" algo="sha256" writes=500       4.77 %        *** 7.866597e-45
 crypto\\hash-stream-creation.js api="stream" len=102400 out="buffer" type="utf" algo="md5" writes=500          8.32 %        *** 3.653448e-45
 crypto\\hash-stream-creation.js api="stream" len=102400 out="buffer" type="utf" algo="sha256" writes=500       4.21 %        *** 4.929195e-18
 crypto\\hash-stream-creation.js api="stream" len=102400 out="hex" type="asc" algo="md5" writes=500            15.49 %        *** 4.492441e-37
 crypto\\hash-stream-creation.js api="stream" len=102400 out="hex" type="asc" algo="sha256" writes=500          6.90 %        *** 4.394802e-47
 crypto\\hash-stream-creation.js api="stream" len=102400 out="hex" type="buf" algo="md5" writes=500            14.59 %        *** 6.145906e-51
 crypto\\hash-stream-creation.js api="stream" len=102400 out="hex" type="buf" algo="sha256" writes=500          6.33 %        *** 1.995374e-47
 crypto\\hash-stream-creation.js api="stream" len=102400 out="hex" type="utf" algo="md5" writes=500            11.13 %        *** 6.664507e-53
 crypto\\hash-stream-creation.js api="stream" len=102400 out="hex" type="utf" algo="sha256" writes=500          5.61 %        *** 1.581784e-53
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="binary" type="asc" algo="md5" writes=500         1.32 %        *** 5.047128e-30
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="binary" type="asc" algo="sha256" writes=500      0.68 %        *** 4.429725e-26
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="binary" type="buf" algo="md5" writes=500         1.41 %        *** 3.984141e-34
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="binary" type="buf" algo="sha256" writes=500      0.47 %          * 1.429615e-02
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="binary" type="utf" algo="md5" writes=500         1.11 %        *** 6.640764e-28
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="binary" type="utf" algo="sha256" writes=500      0.53 %        *** 7.470229e-10
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="buffer" type="asc" algo="md5" writes=500         0.96 %        *** 2.057387e-11
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="buffer" type="asc" algo="sha256" writes=500      0.44 %        *** 2.522787e-08
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="buffer" type="buf" algo="md5" writes=500         0.99 %        *** 1.119083e-31
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="buffer" type="buf" algo="sha256" writes=500      0.36 %        *** 2.707135e-07
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="buffer" type="utf" algo="md5" writes=500         0.75 %        *** 2.815775e-16
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="buffer" type="utf" algo="sha256" writes=500      0.20 %            4.343580e-01
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="hex" type="asc" algo="md5" writes=500            1.40 %        *** 6.399642e-30
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="hex" type="asc" algo="sha256" writes=500         0.68 %        *** 2.016767e-27
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="hex" type="buf" algo="md5" writes=500            1.46 %        *** 3.341946e-34
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="hex" type="buf" algo="sha256" writes=500         0.49 %        *** 5.094241e-04
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="hex" type="utf" algo="md5" writes=500            1.03 %        *** 2.614926e-09
 crypto\\hash-stream-creation.js api="stream" len=1048576 out="hex" type="utf" algo="sha256" writes=500         0.64 %        *** 9.948626e-18
 crypto\\hash-stream-creation.js api="stream" len=2 out="binary" type="asc" algo="md5" writes=500              43.87 %        *** 1.212104e-53
 crypto\\hash-stream-creation.js api="stream" len=2 out="binary" type="asc" algo="sha256" writes=500           44.09 %        *** 4.647810e-61
 crypto\\hash-stream-creation.js api="stream" len=2 out="binary" type="buf" algo="md5" writes=500              43.66 %        *** 2.219082e-53
 crypto\\hash-stream-creation.js api="stream" len=2 out="binary" type="buf" algo="sha256" writes=500           43.80 %        *** 1.241209e-50
 crypto\\hash-stream-creation.js api="stream" len=2 out="binary" type="utf" algo="md5" writes=500              44.25 %        *** 1.007903e-42
 crypto\\hash-stream-creation.js api="stream" len=2 out="binary" type="utf" algo="sha256" writes=500           43.85 %        *** 3.018415e-60
 crypto\\hash-stream-creation.js api="stream" len=2 out="buffer" type="asc" algo="md5" writes=500              36.00 %        *** 2.107011e-61
 crypto\\hash-stream-creation.js api="stream" len=2 out="buffer" type="asc" algo="sha256" writes=500           36.20 %        *** 1.014837e-52
 crypto\\hash-stream-creation.js api="stream" len=2 out="buffer" type="buf" algo="md5" writes=500              34.42 %        *** 1.011169e-53
 crypto\\hash-stream-creation.js api="stream" len=2 out="buffer" type="buf" algo="sha256" writes=500           35.55 %        *** 7.331135e-48
 crypto\\hash-stream-creation.js api="stream" len=2 out="buffer" type="utf" algo="md5" writes=500              37.11 %        *** 1.059485e-57
 crypto\\hash-stream-creation.js api="stream" len=2 out="buffer" type="utf" algo="sha256" writes=500           37.41 %        *** 2.303535e-44
 crypto\\hash-stream-creation.js api="stream" len=2 out="hex" type="asc" algo="md5" writes=500                 44.57 %        *** 1.601546e-59
 crypto\\hash-stream-creation.js api="stream" len=2 out="hex" type="asc" algo="sha256" writes=500              44.15 %        *** 4.800232e-64
 crypto\\hash-stream-creation.js api="stream" len=2 out="hex" type="buf" algo="md5" writes=500                 44.32 %        *** 8.178802e-59
 crypto\\hash-stream-creation.js api="stream" len=2 out="hex" type="buf" algo="sha256" writes=500              43.25 %        *** 5.844831e-51
 crypto\\hash-stream-creation.js api="stream" len=2 out="hex" type="utf" algo="md5" writes=500                 45.70 %        *** 1.640590e-47
 crypto\\hash-stream-creation.js api="stream" len=2 out="hex" type="utf" algo="sha256" writes=500              45.09 %        *** 9.060953e-54
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="asc" algo="sha1" writes=500                      4.19 %            1.144347e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="asc" algo="sha256" writes=500                    2.32 %            2.237904e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="asc" algo="sha512" writes=500                   10.15 %        *** 1.131800e-07
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="buf" algo="sha1" writes=500                     15.41 %        *** 7.566544e-08
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="buf" algo="sha256" writes=500                    6.01 %        *** 5.591579e-05
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="buf" algo="sha512" writes=500                   12.44 %        *** 2.465006e-07
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="utf" algo="sha1" writes=500                      9.43 %        *** 3.527307e-05
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="utf" algo="sha256" writes=500                    4.93 %         ** 1.626553e-03
 crypto\\hash-stream-throughput.js api="legacy" len=1024 type="utf" algo="sha512" writes=500                   10.22 %        *** 4.034003e-04
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="asc" algo="sha1" writes=500                    0.35 %            6.033025e-01
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="asc" algo="sha256" writes=500                 -0.04 %            9.475377e-01
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="asc" algo="sha512" writes=500                  0.88 %            1.366263e-01
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="buf" algo="sha1" writes=500                   -0.21 %            7.275329e-01
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="buf" algo="sha256" writes=500                  0.01 %            9.865765e-01
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="buf" algo="sha512" writes=500                  0.26 %            6.849348e-01
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="utf" algo="sha1" writes=500                   -0.31 %            6.419916e-01
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="utf" algo="sha256" writes=500                  0.10 %            8.681219e-01
 crypto\\hash-stream-throughput.js api="legacy" len=102400 type="utf" algo="sha512" writes=500                  0.11 %            8.615542e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="asc" algo="sha1" writes=500                  -0.29 %            7.791558e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="asc" algo="sha256" writes=500                -0.04 %            9.588757e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="asc" algo="sha512" writes=500                 0.60 %            5.383546e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="buf" algo="sha1" writes=500                  -0.36 %            6.110111e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="buf" algo="sha256" writes=500                 0.16 %            7.905428e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="buf" algo="sha512" writes=500                 0.49 %            5.336388e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="utf" algo="sha1" writes=500                  -0.71 %            3.925651e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="utf" algo="sha256" writes=500                -0.16 %            8.075720e-01
 crypto\\hash-stream-throughput.js api="legacy" len=1048576 type="utf" algo="sha512" writes=500                 0.22 %            7.612138e-01
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="asc" algo="sha1" writes=500                        30.15 %        *** 1.705945e-11
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="asc" algo="sha256" writes=500                      36.19 %        *** 2.757825e-18
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="asc" algo="sha512" writes=500                      37.67 %        *** 9.266523e-21
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="buf" algo="sha1" writes=500                        35.55 %        *** 1.280007e-19
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="buf" algo="sha256" writes=500                      48.51 %        *** 3.834287e-23
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="buf" algo="sha512" writes=500                      42.60 %        *** 1.036161e-16
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="utf" algo="sha1" writes=500                        29.83 %        *** 2.516428e-10
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="utf" algo="sha256" writes=500                      31.18 %        *** 1.017236e-12
 crypto\\hash-stream-throughput.js api="legacy" len=2 type="utf" algo="sha512" writes=500                      29.18 %        *** 6.391591e-23
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="asc" algo="sha1" writes=500                     56.56 %        *** 1.142683e-34
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="asc" algo="sha256" writes=500                   42.83 %        *** 1.216684e-26
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="asc" algo="sha512" writes=500                   47.28 %        *** 1.884919e-26
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="buf" algo="sha1" writes=500                     49.24 %        *** 9.869158e-27
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="buf" algo="sha256" writes=500                   41.01 %        *** 3.283403e-30
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="buf" algo="sha512" writes=500                   50.51 %        *** 1.608730e-31
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="utf" algo="sha1" writes=500                     46.96 %        *** 4.263772e-34
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="utf" algo="sha256" writes=500                   38.66 %        *** 2.629644e-31
 crypto\\hash-stream-throughput.js api="stream" len=1024 type="utf" algo="sha512" writes=500                   45.28 %        *** 3.580402e-35
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="asc" algo="sha1" writes=500                    4.43 %        *** 2.881191e-06
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="asc" algo="sha256" writes=500                  1.77 %         ** 8.006636e-03
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="asc" algo="sha512" writes=500                  3.25 %        *** 7.428171e-06
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="buf" algo="sha1" writes=500                    3.39 %        *** 1.105555e-05
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="buf" algo="sha256" writes=500                  1.90 %         ** 1.979172e-03
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="buf" algo="sha512" writes=500                  3.02 %        *** 2.916353e-05
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="utf" algo="sha1" writes=500                    2.59 %        *** 7.138457e-04
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="utf" algo="sha256" writes=500                  1.65 %          * 1.537734e-02
 crypto\\hash-stream-throughput.js api="stream" len=102400 type="utf" algo="sha512" writes=500                  2.15 %         ** 3.199890e-03
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="asc" algo="sha1" writes=500                  -0.02 %            9.831266e-01
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="asc" algo="sha256" writes=500                -0.07 %            9.224397e-01
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="asc" algo="sha512" writes=500                 0.36 %            6.819977e-01
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="buf" algo="sha1" writes=500                  -0.08 %            9.126509e-01
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="buf" algo="sha256" writes=500                 0.28 %            6.301024e-01
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="buf" algo="sha512" writes=500                 0.08 %            8.999421e-01
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="utf" algo="sha1" writes=500                  -0.66 %            4.463596e-01
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="utf" algo="sha256" writes=500                -0.10 %            8.744901e-01
 crypto\\hash-stream-throughput.js api="stream" len=1048576 type="utf" algo="sha512" writes=500                 0.19 %            7.885318e-01
 crypto\\hash-stream-throughput.js api="stream" len=2 type="asc" algo="sha1" writes=500                        59.31 %        *** 1.183113e-29
 crypto\\hash-stream-throughput.js api="stream" len=2 type="asc" algo="sha256" writes=500                      59.09 %        *** 5.506000e-35
 crypto\\hash-stream-throughput.js api="stream" len=2 type="asc" algo="sha512" writes=500                      57.53 %        *** 7.137887e-37
 crypto\\hash-stream-throughput.js api="stream" len=2 type="buf" algo="sha1" writes=500                        59.43 %        *** 7.341969e-33
 crypto\\hash-stream-throughput.js api="stream" len=2 type="buf" algo="sha256" writes=500                      59.48 %        *** 2.124401e-34
 crypto\\hash-stream-throughput.js api="stream" len=2 type="buf" algo="sha512" writes=500                      59.74 %        *** 1.821364e-38
 crypto\\hash-stream-throughput.js api="stream" len=2 type="utf" algo="sha1" writes=500                        60.75 %        *** 5.704288e-32
 crypto\\hash-stream-throughput.js api="stream" len=2 type="utf" algo="sha256" writes=500                      56.92 %        *** 4.113266e-33
 crypto\\hash-stream-throughput.js api="stream" len=2 type="utf" algo="sha512" writes=500                      61.12 %        *** 2.075120e-41
 crypto\\rsa-encrypt-decrypt-throughput.js len=16 keylen="1024" n=500                                           0.94 %         ** 7.988899e-03
 crypto\\rsa-encrypt-decrypt-throughput.js len=16 keylen="2048" n=500                                           0.24 %         ** 1.666736e-03
 crypto\\rsa-encrypt-decrypt-throughput.js len=16 keylen="4096" n=500                                           0.07 %         ** 1.387833e-03
 crypto\\rsa-encrypt-decrypt-throughput.js len=32 keylen="1024" n=500                                           0.58 %        *** 1.820095e-06
 crypto\\rsa-encrypt-decrypt-throughput.js len=32 keylen="2048" n=500                                           0.25 %         ** 1.742258e-03
 crypto\\rsa-encrypt-decrypt-throughput.js len=32 keylen="4096" n=500                                           0.10 %        *** 3.751507e-07
 crypto\\rsa-encrypt-decrypt-throughput.js len=64 keylen="1024" n=500                                           0.59 %        *** 4.665673e-06
 crypto\\rsa-encrypt-decrypt-throughput.js len=64 keylen="2048" n=500                                           0.30 %        *** 9.037149e-04
 crypto\\rsa-encrypt-decrypt-throughput.js len=64 keylen="4096" n=500                                           0.07 %          * 1.548653e-02
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="1024" algo="RSA-SHA1" writes=500                        1.99 %          * 2.984507e-02
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="1024" algo="RSA-SHA224" writes=500                      0.07 %            9.236768e-01
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="1024" algo="RSA-SHA256" writes=500                      0.41 %            2.974579e-01
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="1024" algo="RSA-SHA384" writes=500                      0.45 %            4.781091e-01
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="1024" algo="RSA-SHA512" writes=500                      0.65 %            4.882167e-01
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="2048" algo="RSA-SHA1" writes=500                        0.30 %            5.090032e-01
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="2048" algo="RSA-SHA224" writes=500                     -0.28 %            5.531249e-01
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="2048" algo="RSA-SHA256" writes=500                      0.76 %            1.448666e-01
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="2048" algo="RSA-SHA384" writes=500                     -0.11 %            8.421683e-01
 crypto\\rsa-sign-verify-throughput.js len=1024 keylen="2048" algo="RSA-SHA512" writes=500                     -0.90 %            1.720550e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="1024" algo="RSA-SHA1" writes=500                      0.22 %            1.078061e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="1024" algo="RSA-SHA224" writes=500                   -0.03 %            7.439467e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="1024" algo="RSA-SHA256" writes=500                    0.04 %            5.836619e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="1024" algo="RSA-SHA384" writes=500                    0.11 %            8.697242e-02
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="1024" algo="RSA-SHA512" writes=500                    0.06 %            3.117497e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="2048" algo="RSA-SHA1" writes=500                      0.00 %            9.744399e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="2048" algo="RSA-SHA224" writes=500                    0.07 %            2.645868e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="2048" algo="RSA-SHA256" writes=500                    0.02 %            8.091833e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="2048" algo="RSA-SHA384" writes=500                    0.04 %            4.916818e-01
 crypto\\rsa-sign-verify-throughput.js len=102400 keylen="2048" algo="RSA-SHA512" writes=500                    0.11 %            9.139755e-02
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="1024" algo="RSA-SHA1" writes=500                     0.02 %            7.408700e-01
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="1024" algo="RSA-SHA224" writes=500                  -0.03 %            5.455385e-01
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="1024" algo="RSA-SHA256" writes=500                   0.04 %            4.639116e-01
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="1024" algo="RSA-SHA384" writes=500                   0.05 %            3.127878e-01
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="1024" algo="RSA-SHA512" writes=500                   0.00 %            8.795085e-01
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="2048" algo="RSA-SHA1" writes=500                    -0.03 %            6.127738e-01
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="2048" algo="RSA-SHA224" writes=500                  -0.04 %            5.246001e-01
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="2048" algo="RSA-SHA256" writes=500                  -0.01 %            8.556170e-01
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="2048" algo="RSA-SHA384" writes=500                  -0.09 %            5.972922e-02
 crypto\\rsa-sign-verify-throughput.js len=1048576 keylen="2048" algo="RSA-SHA512" writes=500                   0.05 %            2.576516e-01
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="1024" algo="RSA-SHA1" writes=500                      0.11 %            3.160240e-01
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="1024" algo="RSA-SHA224" writes=500                    0.02 %            8.251159e-01
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="1024" algo="RSA-SHA256" writes=500                   -0.04 %            4.231501e-01
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="1024" algo="RSA-SHA384" writes=500                    0.12 %            5.339784e-02
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="1024" algo="RSA-SHA512" writes=500                    0.16 %          * 1.111178e-02
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="2048" algo="RSA-SHA1" writes=500                      0.33 %         ** 5.724051e-03
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="2048" algo="RSA-SHA224" writes=500                    0.16 %            6.032916e-02
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="2048" algo="RSA-SHA256" writes=500                   -0.09 %            2.256814e-01
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="2048" algo="RSA-SHA384" writes=500                    0.11 %          * 4.776867e-02
 crypto\\rsa-sign-verify-throughput.js len=204800 keylen="2048" algo="RSA-SHA512" writes=500                    0.12 %        *** 8.566714e-04
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="1024" algo="RSA-SHA1" writes=500                      0.26 %          * 1.906740e-02
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="1024" algo="RSA-SHA224" writes=500                   -0.07 %            2.494538e-01
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="1024" algo="RSA-SHA256" writes=500                   -0.02 %            7.609696e-01
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="1024" algo="RSA-SHA384" writes=500                    0.11 %         ** 7.942188e-03
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="1024" algo="RSA-SHA512" writes=500                    0.09 %          * 1.296280e-02
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="2048" algo="RSA-SHA1" writes=500                      0.24 %          * 1.312968e-02
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="2048" algo="RSA-SHA224" writes=500                    0.08 %            2.663300e-01
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="2048" algo="RSA-SHA256" writes=500                   -0.02 %            7.764168e-01
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="2048" algo="RSA-SHA384" writes=500                    0.10 %         ** 7.818043e-03
 crypto\\rsa-sign-verify-throughput.js len=307200 keylen="2048" algo="RSA-SHA512" writes=500                    0.14 %          * 1.273128e-02

[targos]

timers:

                                                    improvement confidence      p.value
 timers/immediate.js type="breadth" thousands=2000      12.76 %        *** 8.348231e-05
 timers/immediate.js type="breadth1" thousands=2000      6.83 %        *** 3.396593e-04
 timers/immediate.js type="breadth4" thousands=2000      1.13 %            6.231323e-01
 timers/immediate.js type="clear" thousands=2000         6.40 %        *** 1.983798e-04
 timers/immediate.js type="depth" thousands=2000         5.43 %        *** 3.101314e-05
 timers/immediate.js type="depth1" thousands=2000        9.83 %        *** 5.083261e-11
 timers/set-immediate-breadth-args.js millions=5        -0.12 %            7.798393e-01
 timers/set-immediate-breadth.js millions=10             3.89 %        *** 7.465471e-15
 timers/set-immediate-depth-args.js millions=10         16.38 %        *** 1.535860e-20
 timers/set-immediate-depth.js millions=10               6.00 %        *** 8.826471e-14
 timers/timers-breadth.js thousands=500                  8.19 %        *** 8.195604e-18
 timers/timers-cancel-pooled.js thousands=500            0.39 %            6.270987e-01
 timers/timers-cancel-unpooled.js thousands=100         -0.17 %        *** 9.034505e-04
 timers/timers-depth.js thousands=1                     -0.25 %            7.790906e-01
 timers/timers-insert-pooled.js thousands=500          -11.42 %        *** 5.366038e-36
 timers/timers-insert-unpooled.js thousands=100         -5.00 %        *** 4.390698e-11
 timers/timers-timeout-pooled.js thousands=500          90.99 %        *** 1.828523e-24

[jasnell]

hmm.. the streams results are interesting because I've been noticing a significant dip in streams performance in master compared to v7 and v6 in general without switching over to --ignition. I'd be curious to know if others have seen the same.

(that dip is really the only thing keeping me from landing the crypto module refactor I had done)

[targos]

@bmeurer One of the tests deoptimizes with TurboFan for a not obvious reason.

According to the log, the problem is located at the ++i on line 29: https://github.com/nodejs/node/blob/master/benchmark/arrays/var-int.js#L29
This does not happen with Crankshaft.

output:

[optimizing 0x24cc72054c59 <JSFunction main (sfi = 0x3c0461a5f5c1)> - took 0.329, 0.847, 0.082 ms]
[deoptimizing (DEOPT soft): begin 0x24cc72054c59 <JSFunction main (sfi = 0x3c0461a5f5c1)> (opt #0) @16, FP to SP delta: 192, caller sp: 0x7ffc3d1a4598]
            ;;; deoptimize at </home/mzasso/git/nodejs/node-canary/benchmark/arrays/var-int.js:29:29>, Insufficient type feedback for generic named access
  reading input frame main => bytecode_offset=134, args=2, height=11; inputs:
      0: 0x24cc72054c59 ; [fp - 16] 0x24cc72054c59 <JSFunction main (sfi = 0x3c0461a5f5c1)>
      1: 0x67814102311 ; [fp + 24] 0x67814102311 <undefined>
      2: 0x24cc72073b09 ; [fp + 16] 0x24cc72073b09 <Object map = 0x17a113d39991>
      3: 0x24cc72054c21 ; [fp - 128] 0x24cc72054c21 <FixedArray[5]>
      4: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
      5: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
      6: 0x1900000000 ; [fp - 64] 25
      7: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
      8: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
      9: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
     10: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
     11: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
     12: 0x24cc72072f81 ; rbx 0x24cc72072f81 <Benchmark map = 0x17a113d39b49>
     13: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
     14: 0x67814104a41 ; (literal 1) 0x67814104a41 <Odd Oddball: optimized_out>
  translating interpreted frame main => bytecode_offset=134, height=88
    0x7ffc3d1a4590: [top + 152] <- 0x67814102311 ;  0x67814102311 <undefined>  (input #1)
    0x7ffc3d1a4588: [top + 144] <- 0x24cc72073b09 ;  0x24cc72073b09 <Object map = 0x17a113d39991>  (input #2)
    -------------------------
    0x7ffc3d1a4580: [top + 136] <- 0x25890f407abc ;  caller's pc
    0x7ffc3d1a4578: [top + 128] <- 0x7ffc3d1a45a0 ;  caller's fp
    0x7ffc3d1a4570: [top + 120] <- 0x24cc72054c21 ;  context    0x24cc72054c21 <FixedArray[5]>  (input #3)
    0x7ffc3d1a4568: [top + 112] <- 0x24cc72054c59 ;  function    0x24cc72054c59 <JSFunction main (sfi = 0x3c0461a5f5c1)>  (input #0)
    0x7ffc3d1a4560: [top + 104] <- 0x67814102311 ;  new_target  0x67814102311 <undefined>  (input #0)
    0x7ffc3d1a4558: [top + 96] <- 0x3c0461a6ff31 ;  bytecode array 0x3c0461a6ff31 <BytecodeArray[147]>  (input #0)
    0x7ffc3d1a4550: [top + 88] <- 0xbb00000000 ;  bytecode offset 187  (input #0)
    -------------------------
    0x7ffc3d1a4548: [top + 80] <- 0x67814104a41 ;  0x67814104a41 <Odd Oddball: optimized_out>  (input #4)
    0x7ffc3d1a4540: [top + 72] <- 0x67814104a41 ;  0x67814104a41 <Odd Oddball: optimized_out>  (input #5)
    0x7ffc3d1a4538: [top + 64] <- 0x1900000000 ;  25  (input #6)
    0x7ffc3d1a4530: [top + 56] <- 0x67814104a41 ;  0x67814104a41 <Odd Oddball: optimized_out>  (input #7)
    0x7ffc3d1a4528: [top + 48] <- 0x67814104a41 ;  0x67814104a41 <Odd Oddball: optimized_out>  (input #8)
    0x7ffc3d1a4520: [top + 40] <- 0x67814104a41 ;  0x67814104a41 <Odd Oddball: optimized_out>  (input #9)
    0x7ffc3d1a4518: [top + 32] <- 0x67814104a41 ;  0x67814104a41 <Odd Oddball: optimized_out>  (input #10)
    0x7ffc3d1a4510: [top + 24] <- 0x67814104a41 ;  0x67814104a41 <Odd Oddball: optimized_out>  (input #11)
    0x7ffc3d1a4508: [top + 16] <- 0x24cc72072f81 ;  0x24cc72072f81 <Benchmark map = 0x17a113d39b49>  (input #12)
    0x7ffc3d1a4500: [top + 8] <- 0x67814104a41 ;  0x67814104a41 <Odd Oddball: optimized_out>  (input #13)
    0x7ffc3d1a44f8: [top + 0] <- 0x67814104a41 ;  accumulator 0x67814104a41 <Odd Oddball: optimized_out>  (input #14)
[deoptimizing (soft): end 0x24cc72054c59 <JSFunction main (sfi = 0x3c0461a5f5c1)> @16 => node=134, pc=0x25890f3d1100, caller sp=0x7ffc3d1a4598, state=TOS_REGISTER, took 0.368 ms]

[vsemozhetbyt]

TOC added to the first post to find results more quickly (will be updated).

[bmeurer]

@targos That looks weird, given that the relevant line https://github.com/nodejs/node/blob/master/benchmark/arrays/var-int.js#L29 doesn't have any named access. But I also doubt that this deopt is important, it's just a SOFT deopt, so next time main is executed it will be optimized with feedback.

[vsemozhetbyt]

dgram:

                                                                         improvement confidence      p.value
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=1 num=100 len=1024     -4.23 %        *** 3.920113e-14
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=1 num=100 len=256      -3.84 %        *** 8.066887e-15
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=1 num=100 len=512      -4.08 %        *** 6.403445e-17
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=1 num=100 len=64       -4.32 %        *** 5.716601e-14
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=2 num=100 len=1024     -4.98 %        *** 5.928104e-20
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=2 num=100 len=256      -4.36 %        *** 2.317094e-17
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=2 num=100 len=512      -4.35 %        *** 1.061233e-12
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=2 num=100 len=64       -4.47 %        *** 1.955225e-20
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=4 num=100 len=1024     -4.23 %        *** 2.173462e-15
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=4 num=100 len=256      -4.92 %        *** 4.417656e-19
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=4 num=100 len=512      -5.09 %        *** 2.582610e-21
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=4 num=100 len=64       -4.86 %        *** 3.180004e-16
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=8 num=100 len=1024     -5.01 %        *** 6.332177e-17
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=8 num=100 len=256      -5.37 %        *** 3.455632e-22
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=8 num=100 len=512      -5.33 %        *** 1.215530e-25
 dgram\\array-vs-concat.js dur=5 type="concat" chunks=8 num=100 len=64       -6.51 %        *** 1.412788e-25
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=1 num=100 len=1024      -2.98 %        *** 8.665798e-12
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=1 num=100 len=256       -2.87 %        *** 4.515326e-12
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=1 num=100 len=512       -3.05 %        *** 2.986855e-15
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=1 num=100 len=64        -2.48 %        *** 8.536141e-12
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=2 num=100 len=1024      -2.83 %        *** 3.271695e-11
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=2 num=100 len=256       -3.02 %        *** 6.813806e-13
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=2 num=100 len=512       -2.98 %        *** 2.015826e-14
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=2 num=100 len=64        -2.79 %        *** 3.993081e-14
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=4 num=100 len=1024      -3.14 %        *** 2.033489e-14
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=4 num=100 len=256       -2.75 %        *** 8.503702e-13
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=4 num=100 len=512       -2.43 %        *** 3.545867e-10
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=4 num=100 len=64        -2.87 %        *** 1.144410e-12
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=8 num=100 len=1024      -2.77 %        *** 3.465403e-10
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=8 num=100 len=256       -2.67 %        *** 7.113096e-10
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=8 num=100 len=512       -3.05 %        *** 2.353899e-14
 dgram\\array-vs-concat.js dur=5 type="multi" chunks=8 num=100 len=64        -3.13 %        *** 1.868771e-12
 dgram\\bind-params.js address="false" port="false" n=10000                 -24.78 %        *** 4.916431e-32
 dgram\\bind-params.js address="false" port="true" n=10000                  -23.97 %        *** 3.883995e-46
 dgram\\bind-params.js address="true" port="true" n=10000                   -25.42 %        *** 6.722490e-44
 dgram\\multi-buffer.js dur=5 type="recv" chunks=1 num=100 len=1024          -3.16 %        *** 2.251245e-13
 dgram\\multi-buffer.js dur=5 type="recv" chunks=1 num=100 len=256           -3.14 %        *** 1.286879e-13
 dgram\\multi-buffer.js dur=5 type="recv" chunks=1 num=100 len=64            -3.37 %        *** 2.684892e-15
 dgram\\multi-buffer.js dur=5 type="recv" chunks=2 num=100 len=1024          -3.01 %        *** 3.720551e-12
 dgram\\multi-buffer.js dur=5 type="recv" chunks=2 num=100 len=256           -2.55 %        *** 1.996293e-11
 dgram\\multi-buffer.js dur=5 type="recv" chunks=2 num=100 len=64            -2.35 %        *** 4.370677e-10
 dgram\\multi-buffer.js dur=5 type="recv" chunks=4 num=100 len=1024          -3.60 %        *** 2.927759e-15
 dgram\\multi-buffer.js dur=5 type="recv" chunks=4 num=100 len=256           -3.26 %        *** 7.747668e-13
 dgram\\multi-buffer.js dur=5 type="recv" chunks=4 num=100 len=64            -3.33 %        *** 1.610011e-10
 dgram\\multi-buffer.js dur=5 type="recv" chunks=8 num=100 len=1024          -3.43 %        *** 2.147567e-12
 dgram\\multi-buffer.js dur=5 type="recv" chunks=8 num=100 len=256           -2.79 %        *** 2.864880e-11
 dgram\\multi-buffer.js dur=5 type="recv" chunks=8 num=100 len=64            -3.22 %        *** 1.850481e-10
 dgram\\multi-buffer.js dur=5 type="send" chunks=1 num=100 len=1024          -3.33 %        *** 1.144536e-12
 dgram\\multi-buffer.js dur=5 type="send" chunks=1 num=100 len=256           -3.25 %        *** 2.333847e-13
 dgram\\multi-buffer.js dur=5 type="send" chunks=1 num=100 len=64            -3.33 %        *** 6.761801e-13
 dgram\\multi-buffer.js dur=5 type="send" chunks=2 num=100 len=1024          -3.00 %        *** 6.803914e-12
 dgram\\multi-buffer.js dur=5 type="send" chunks=2 num=100 len=256           -2.70 %        *** 5.407508e-09
 dgram\\multi-buffer.js dur=5 type="send" chunks=2 num=100 len=64            -2.36 %        *** 5.145809e-10
 dgram\\multi-buffer.js dur=5 type="send" chunks=4 num=100 len=1024          -3.49 %        *** 2.192709e-12
 dgram\\multi-buffer.js dur=5 type="send" chunks=4 num=100 len=256           -3.43 %        *** 1.511301e-13
 dgram\\multi-buffer.js dur=5 type="send" chunks=4 num=100 len=64            -3.54 %        *** 3.735185e-17
 dgram\\multi-buffer.js dur=5 type="send" chunks=8 num=100 len=1024          -2.99 %        *** 7.682578e-13
 dgram\\multi-buffer.js dur=5 type="send" chunks=8 num=100 len=256           -2.91 %        *** 3.488120e-10
 dgram\\multi-buffer.js dur=5 type="send" chunks=8 num=100 len=64            -3.19 %        *** 1.725149e-11
 dgram\\offset-length.js dur=5 type="recv" num=100 len=1                     -3.24 %        *** 6.047982e-17
 dgram\\offset-length.js dur=5 type="recv" num=100 len=1024                  -3.36 %        *** 7.278951e-16
 dgram\\offset-length.js dur=5 type="recv" num=100 len=256                   -3.11 %        *** 9.445284e-15
 dgram\\offset-length.js dur=5 type="recv" num=100 len=64                    -3.18 %        *** 4.141937e-16
 dgram\\offset-length.js dur=5 type="send" num=100 len=1                     -3.60 %        *** 6.041570e-18
 dgram\\offset-length.js dur=5 type="send" num=100 len=1024                  -2.88 %        *** 2.104597e-15
 dgram\\offset-length.js dur=5 type="send" num=100 len=256                   -3.36 %        *** 6.063926e-20
 dgram\\offset-length.js dur=5 type="send" num=100 len=64                    -3.14 %        *** 3.882746e-16
 dgram\\single-buffer.js dur=5 type="recv" num=100 len=1                     -3.38 %        *** 7.641149e-04
 dgram\\single-buffer.js dur=5 type="recv" num=100 len=1024                  -4.15 %        *** 3.633956e-27
 dgram\\single-buffer.js dur=5 type="recv" num=100 len=256                   -4.18 %        *** 3.475801e-25
 dgram\\single-buffer.js dur=5 type="recv" num=100 len=64                    -3.97 %        *** 3.483490e-18
 dgram\\single-buffer.js dur=5 type="send" num=100 len=1                     -4.10 %        *** 1.717279e-23
 dgram\\single-buffer.js dur=5 type="send" num=100 len=1024                  -4.55 %        *** 5.434080e-12
 dgram\\single-buffer.js dur=5 type="send" num=100 len=256                   -3.82 %        *** 6.100148e-22
 dgram\\single-buffer.js dur=5 type="send" num=100 len=64                    -3.08 %        *** 1.846774e-04

[vsemozhetbyt]

domain:

                                            improvement confidence    p.value
 domain\\domain-fn-args.js n=10 arguments=0     -5.22 %            0.13903860
 domain\\domain-fn-args.js n=10 arguments=1     -2.80 %            0.12515340
 domain\\domain-fn-args.js n=10 arguments=2     -4.77 %          * 0.01492218
 domain\\domain-fn-args.js n=10 arguments=3     -4.34 %         ** 0.00841915

[vsemozhetbyt]

Wow.

es:

                                                                                       improvement confidence      p.value
 es\\defaultparams-bench.js millions=100 method="withdefaults"                            186.76 %        *** 2.057441e-50
 es\\defaultparams-bench.js millions=100 method="withoutdefaults"                         187.46 %        *** 1.148147e-66
 es\\destructuring-bench.js millions=100 method="destructure"                              58.76 %        *** 3.980102e-67
 es\\destructuring-bench.js millions=100 method="swap"                                    -73.19 %        *** 2.054673e-67
 es\\destructuring-object-bench.js millions=100 method="destructureObject"                 45.92 %        *** 3.253867e-84
 es\\destructuring-object-bench.js millions=100 method="normal"                            -2.25 %        *** 1.426450e-24
 es\\map-bench.js millions=1 method="fakeMap"                                              -0.54 %            8.154590e-02
 es\\map-bench.js millions=1 method="map"                                                  -1.98 %        *** 4.223953e-12
 es\\map-bench.js millions=1 method="nullProtoObject"                                      -9.73 %        *** 2.357791e-35
 es\\map-bench.js millions=1 method="object"                                               -6.76 %        *** 2.362004e-27
 es\\restparams-bench.js millions=100 method="arguments"                                   -9.20 %        *** 7.682132e-16
 es\\restparams-bench.js millions=100 method="copy"                                       -23.35 %        *** 7.057908e-56
 es\\restparams-bench.js millions=100 method="rest"                                       303.00 %        *** 8.692510e-87
 es\\spread-bench.js millions=5 rest=0 context="context" count=10 method="apply"            6.25 %        *** 2.747691e-37
 es\\spread-bench.js millions=5 rest=0 context="context" count=10 method="call-spread"      4.22 %        *** 1.238224e-33
 es\\spread-bench.js millions=5 rest=0 context="context" count=10 method="spread"           5.66 %        *** 1.230090e-19
 es\\spread-bench.js millions=5 rest=0 context="context" count=20 method="apply"            4.22 %        *** 9.667833e-21
 es\\spread-bench.js millions=5 rest=0 context="context" count=20 method="call-spread"      3.61 %        *** 2.641823e-15
 es\\spread-bench.js millions=5 rest=0 context="context" count=20 method="spread"           3.95 %        *** 1.124106e-25
 es\\spread-bench.js millions=5 rest=0 context="context" count=5 method="apply"             7.54 %        *** 2.061487e-11
 es\\spread-bench.js millions=5 rest=0 context="context" count=5 method="call-spread"       7.91 %        *** 2.713476e-19
 es\\spread-bench.js millions=5 rest=0 context="context" count=5 method="spread"            8.16 %        *** 2.198573e-14
 es\\spread-bench.js millions=5 rest=0 context="null" count=10 method="apply"               5.37 %        *** 6.674710e-23
 es\\spread-bench.js millions=5 rest=0 context="null" count=10 method="call-spread"         4.07 %        *** 5.798976e-38
 es\\spread-bench.js millions=5 rest=0 context="null" count=10 method="spread"              6.06 %        *** 2.881326e-22
 es\\spread-bench.js millions=5 rest=0 context="null" count=20 method="apply"               4.40 %        *** 9.221114e-39
 es\\spread-bench.js millions=5 rest=0 context="null" count=20 method="call-spread"         3.29 %        *** 1.949925e-19
 es\\spread-bench.js millions=5 rest=0 context="null" count=20 method="spread"              4.23 %        *** 6.953280e-25
 es\\spread-bench.js millions=5 rest=0 context="null" count=5 method="apply"                8.92 %        *** 5.443435e-15
 es\\spread-bench.js millions=5 rest=0 context="null" count=5 method="call-spread"          6.58 %        *** 1.196305e-14
 es\\spread-bench.js millions=5 rest=0 context="null" count=5 method="spread"               7.35 %        *** 1.602696e-12
 es\\spread-bench.js millions=5 rest=1 context="context" count=10 method="apply"           40.98 %        *** 1.500746e-56
 es\\spread-bench.js millions=5 rest=1 context="context" count=10 method="call-spread"     27.83 %        *** 2.708692e-84
 es\\spread-bench.js millions=5 rest=1 context="context" count=10 method="spread"          36.68 %        *** 9.473065e-70
 es\\spread-bench.js millions=5 rest=1 context="context" count=20 method="apply"           31.29 %        *** 9.726107e-80
 es\\spread-bench.js millions=5 rest=1 context="context" count=20 method="call-spread"     19.57 %        *** 2.758893e-73
 es\\spread-bench.js millions=5 rest=1 context="context" count=20 method="spread"          26.39 %        *** 8.597381e-55
 es\\spread-bench.js millions=5 rest=1 context="context" count=5 method="apply"            53.11 %        *** 4.678357e-80
 es\\spread-bench.js millions=5 rest=1 context="context" count=5 method="call-spread"      38.85 %        *** 5.448252e-79
 es\\spread-bench.js millions=5 rest=1 context="context" count=5 method="spread"           48.35 %        *** 1.633168e-59
 es\\spread-bench.js millions=5 rest=1 context="null" count=10 method="apply"              40.47 %        *** 2.991328e-42
 es\\spread-bench.js millions=5 rest=1 context="null" count=10 method="call-spread"        27.92 %        *** 1.178384e-67
 es\\spread-bench.js millions=5 rest=1 context="null" count=10 method="spread"             38.78 %        *** 2.025877e-51
 es\\spread-bench.js millions=5 rest=1 context="null" count=20 method="apply"              31.04 %        *** 1.404906e-83
 es\\spread-bench.js millions=5 rest=1 context="null" count=20 method="call-spread"        19.52 %        *** 2.329415e-75
 es\\spread-bench.js millions=5 rest=1 context="null" count=20 method="spread"             27.37 %        *** 1.218005e-65
 es\\spread-bench.js millions=5 rest=1 context="null" count=5 method="apply"               51.95 %        *** 2.989997e-47
 es\\spread-bench.js millions=5 rest=1 context="null" count=5 method="call-spread"         38.73 %        *** 9.373389e-50
 es\\spread-bench.js millions=5 rest=1 context="null" count=5 method="spread"              51.66 %        *** 3.193677e-48

[jasnell]

The improvements on the ES6 features is not unexpected. I suspect that the performance losses we see in other areas could be made up for by taking advantage of the highly optimized new features. In particular, using defaults and rest params will provide a significant boost throughout core based on these results.

[bmeurer]

@jasnell Yes. Plus I noticed that some parts of Node core are sort-of written in CrankshaftScript, i.e. carefully tuned towards stuff that works extremely well in Crankshaft. Once I+TF is in for sure, we should revisit Node core and do some auditing/refactoring.

[vsemozhetbyt]

events:

                                                      improvement confidence      p.value
 events\\ee-add-remove.js n=250000                       -45.96 %        *** 9.772078e-70
 events\\ee-emit-multi-args.js n=2000000                 -37.43 %        *** 1.653690e-47
 events\\ee-emit.js n=2000000                            -42.67 %        *** 1.317334e-47
 events\\ee-listener-count-on-prototype.js n=50000000    120.82 %        *** 3.881793e-63
 events\\ee-listeners-many.js n=5000000                   22.51 %        *** 7.230026e-65
 events\\ee-listeners.js n=5000000                        12.49 %        *** 5.530568e-39
 events\\ee-once.js n=20000000                           -17.92 %        *** 3.652062e-28