shave 150ms off bootstrap #131954
Merged
shave 150ms off bootstrap #131954
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
rustbot
added
S-waiting-on-review
Kobzol
reviewed
Oct 20, 2024
this saves about 150ms on many ./x invocations
the8472
force-pushed
the
bootstrap-parallel-git
branch
from
a96be9b to
a269e4d
Compare
|
I saw only about ~40 ms improvement locally, but this might be worse for HDDs and/or more complex git index states. Even though this creates a new output function, it does not complicate the code very much and seems like it can have useful perf. benefits. Let's land this for now. @bors r+ |
bors
added
S-waiting-on-bors
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Oct 21, 2024
…bzol shave 150ms off bootstrap This starts `git` commands inside `GitInfo`and the submodule updates in parallel. Git should already perform internal locking in cases where it needs to serialize a modification. ``` OLD Benchmark #1: ./x check core Time (mean ± σ): 608.7 ms ± 4.4 ms [User: 368.3 ms, System: 455.1 ms] Range (min … max): 602.3 ms … 618.8 ms 10 runs NEW Benchmark #1: ./x check core Time (mean ± σ): 462.8 ms ± 2.6 ms [User: 350.2 ms, System: 485.1 ms] Range (min … max): 457.5 ms … 465.6 ms 10 runs ``` This should help with the rust-analyzer setup which issues many individual `./x check` calls. There's more that could be done but these were the lowest-hanging fruits that I saw.
|
💔 Test failed - checks-actions |
bors
added
S-waiting-on-review
|
seems spurious. @bors retry |
bors
added
S-waiting-on-bors
fmease
added a commit
to fmease/rust
that referenced
this pull request
Oct 22, 2024
…Kobzol shave 150ms off bootstrap This starts `git` commands inside `GitInfo`and the submodule updates in parallel. Git should already perform internal locking in cases where it needs to serialize a modification. ``` OLD Benchmark #1: ./x check core Time (mean ± σ): 608.7 ms ± 4.4 ms [User: 368.3 ms, System: 455.1 ms] Range (min … max): 602.3 ms … 618.8 ms 10 runs NEW Benchmark #1: ./x check core Time (mean ± σ): 462.8 ms ± 2.6 ms [User: 350.2 ms, System: 485.1 ms] Range (min … max): 457.5 ms … 465.6 ms 10 runs ``` This should help with the rust-analyzer setup which issues many individual `./x check` calls. There's more that could be done but these were the lowest-hanging fruits that I saw.
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Oct 22, 2024
Rollup of 6 pull requests Successful merges: - rust-lang#129935 (make unsupported_calling_conventions a hard error) - rust-lang#130432 (rust_for_linux: -Zregparm=<N> commandline flag for X86 (rust-lang#116972)) - rust-lang#131697 (`rt::Argument`: elide lifetimes) - rust-lang#131954 (shave 150ms off bootstrap) - rust-lang#131982 (Represent `hir::TraitBoundModifiers` as distinct parts in HIR) - rust-lang#132017 (Update triagebot.toml) r? `@ghost` `@rustbot` modify labels: rollup
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Oct 22, 2024
…kingjubilee Rollup of 6 pull requests Successful merges: - rust-lang#130432 (rust_for_linux: -Zregparm=<N> commandline flag for X86 (rust-lang#116972)) - rust-lang#131697 (`rt::Argument`: elide lifetimes) - rust-lang#131807 (Always specify `llvm_abiname` for RISC-V targets) - rust-lang#131954 (shave 150ms off bootstrap) - rust-lang#132015 (Move const trait tests from `ui/rfcs/rfc-2632-const-trait-impl` to `ui/traits/const-traits`) - rust-lang#132017 (Update triagebot.toml) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Oct 22, 2024
Rollup merge of rust-lang#131954 - the8472:bootstrap-parallel-git, r=Kobzol shave 150ms off bootstrap This starts `git` commands inside `GitInfo`and the submodule updates in parallel. Git should already perform internal locking in cases where it needs to serialize a modification. ``` OLD Benchmark #1: ./x check core Time (mean ± σ): 608.7 ms ± 4.4 ms [User: 368.3 ms, System: 455.1 ms] Range (min … max): 602.3 ms … 618.8 ms 10 runs NEW Benchmark #1: ./x check core Time (mean ± σ): 462.8 ms ± 2.6 ms [User: 350.2 ms, System: 485.1 ms] Range (min … max): 457.5 ms … 465.6 ms 10 runs ``` This should help with the rust-analyzer setup which issues many individual `./x check` calls. There's more that could be done but these were the lowest-hanging fruits that I saw.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This starts
gitcommands insideGitInfoand the submodule updates in parallel. Git should already perform internal locking in cases where it needs to serialize a modification.This should help with the rust-analyzer setup which issues many individual
./x checkcalls. There's more that could be done but these were the lowest-hanging fruits that I saw.