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42 lines
1.4 KiB
Markdown
42 lines
1.4 KiB
Markdown
This directory contains utilities for continuous benchmarking of libc++ with LNT.
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This can be done locally using a local instance, or using a public instance like http://lnt.llvm.org.
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## Running a benchmark bot
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The `run-benchbot` script is the main entry point for running benchmarks. That script
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is where libc++'s pre-defined LNT bot configurations are defined. To benchmark specific
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commits:
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```
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libcxx/utils/ci/lnt/run-benchbot --llvm-root <monorepo> <builder> -- <commit1> <commit2> ...
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```
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Results are stored as JSON files in `<llvm-root>/build/<builder>/` by default. Use
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`--build-dir <dir>` to override the output directory.
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To continuously poll for un-benchmarked commits and submit results to a LNT instance:
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```
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libcxx/utils/ci/lnt/run-benchbot --llvm-root <monorepo> --lnt-url http://lnt.llvm.org <builder>
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```
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## Setting up a local LNT instance
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```
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# Create an instance and run a server
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lnt create my-instance
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echo "api_auth_token = 'example_token'" >> my-instance/lnt.cfg
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lnt runserver my-instance
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# In another terminal, create the libcxx test suite on the locally-running server
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cat <<EOF > lnt-admin-config.yaml
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lnt_url: "http://localhost:8000"
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database: default
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auth_token: example_token
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EOF
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lnt admin --config lnt-admin-config.yaml --testsuite libcxx test-suite add libcxx/utils/ci/lnt/schema.yaml
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# Then run the benchbot against the local instance
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libcxx/utils/ci/lnt/run-benchbot --llvm-root <monorepo> --lnt-url http://localhost:8000 <builder>
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```
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