chore: Add misc/stress-test

Signed-off-by: Jeff Thompson <[email protected]>

misc/stress-test/stress-test-many-posts/README.md

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+# stress-test-many-posts
+
+This is a utility which adds millions of posts to the (local) boards realm to test how memory and
+transaction time change with lots of realm storage.
+
+## Run
+
+Start a local gno.land:
+
+```
+cd gno/gno.land
+make install
+gnoland start -lazy
+```
+
+Start gnoweb. In a separate terminal enter:
+
+```
+gnoweb
+```
+
+Run the utility. In a separate terminal enter:
+
+```
+gno/misc/stress-test/stress-test-many-posts
+go run .
+```
+
+## Monitor
+
+By default gno.land starts r/demo/boards where `testboard` is board #1. This utility adds millions of replies to the first post on that board.
+To monitor progress, in a web browser go to http://127.0.0.1:8888/r/demo/boards:testboard . The first post says something like "(100 replies)".
+Refresh your browser to see this number increase.
+
+## Optional speedup
+
+This utility adds 50 replies per transaction (as allowed by the maximum gas of 100 million). By default gno.land does one transaction every
+5 seconds. It is optional but recommended to decrease this time to 1 second as follows:
+
+* In the terminal where you started gno.land, hit ctrl-C
+* In a text editor, open `gnoland-data/config/config.toml`
+* Change `timeout_commit` to "1s"
+* Save and close the text editor.
+* Restart gno.land by entering `gnoland start -lazy`
+* In the terminal where you started the test, restart it by entering `go run .`
+
+Now data is added 5 times faster. This can reduce adding a million replies from days to hours.
+
+## Test output
+
+The utility prints results to the terminal in CSV which you can paste into a spreadsheet to analyze and graph.
+Below is a sample output. On average the transaction time is 1 second (if you did the optional speedup), but
+can be longer if the system becomes burdened with lots of data in memory.
+
+```
+nPosts, avg. for 50 posts [s], min for 50 posts [s], max for 50 posts [s]
+1000, 1.044250, 1.015000, 1.136000
+2000, 1.048650, 0.999000, 1.106000
+3000, 1.047950, 1.021000, 1.079000
+4000, 1.046450, 1.028000, 1.072000
+```

misc/stress-test/stress-test-many-posts/go.mod

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+module stress_test_many_posts
+
+go 1.21
+
+toolchain go1.21.7
+
+require (
+	connectrpc.com/connect v1.14.0
+	github.com/gnolang/gnonative v1.0.1
+)
+
+require (
+	connectrpc.com/grpchealth v1.2.0 // indirect
+	connectrpc.com/grpcreflect v1.2.0 // indirect
+	github.com/btcsuite/btcd/btcec/v2 v2.3.3 // indirect
+	github.com/btcsuite/btcd/btcutil v1.1.5 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
+	github.com/cockroachdb/apd/v3 v3.2.1 // indirect
+	github.com/cosmos/ledger-cosmos-go v0.13.3 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
+	github.com/gnolang/gno v0.0.0-20240429153043-de2fc456c1cd // indirect
+	github.com/gnolang/overflow v0.0.0-20170615021017-4d914c927216 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/gorilla/websocket v1.5.1 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
+	github.com/libp2p/go-buffer-pool v0.1.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rs/cors v1.10.1 // indirect
+	github.com/rs/xid v1.5.0 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 // indirect
+	github.com/zondax/hid v0.9.2 // indirect
+	github.com/zondax/ledger-go v0.14.3 // indirect
+	go.opentelemetry.io/otel v1.27.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.25.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.27.0 // indirect
+	go.opentelemetry.io/otel/metric v1.27.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.27.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.27.0 // indirect
+	go.opentelemetry.io/otel/trace v1.27.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.2.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 // indirect
+	golang.org/x/mobile v0.0.0-20230531173138-3c911d8e3eda // indirect
+	golang.org/x/mod v0.16.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	golang.org/x/tools v0.19.0 // indirect
+	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240520151616-dc85e6b867a5 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240515191416-fc5f0ca64291 // indirect
+	google.golang.org/grpc v1.64.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	moul.io/u v1.27.0 // indirect
+)
+
+replace github.com/gnolang/gno => ../../../