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Add perf_test.sh script for comparing performance between commits
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@@ -31,3 +31,6 @@ bin | |
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| # Client log file | ||
| othelgo.log | ||
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| # Benchmark results | ||
| perf | ||
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| #!/usr/bin/env bash | ||
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| # This script runs the go benchmark on the current code, then checks out the previous commit and | ||
| # runs the benchmark a second time, then finally compares the two. | ||
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| git diff-files --quiet || { | ||
| echo "You must stash or commit changes before running this script" | ||
| exit 1 | ||
| } | ||
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| HEAD_REF=$(git rev-parse --abbrev-ref HEAD) | ||
| HEAD_SHA=$(git rev-parse --short HEAD) | ||
| PREV_HEAD_SHA=$(git rev-parse --short HEAD^) | ||
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| mkdir -p perf || exit 1 | ||
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| echo "Running benchmark on current version..." | ||
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| for _ in {1..5}; do | ||
| go test -bench=. ./... >>"perf/$HEAD_SHA.txt" || exit 1 | ||
| done | ||
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| git checkout "$PREV_HEAD_SHA" || exit 1 | ||
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| trap 'git checkout $HEAD_REF' EXIT | ||
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| echo "Running benchmark on previous version..." | ||
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| for _ in {1..5}; do | ||
| go test -bench=. ./... >>"perf/$PREV_HEAD_SHA.txt" || exit 1 | ||
| done | ||
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| git checkout "$HEAD_REF" || exit 1 | ||
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| echo 'If the difference is statistically significant, a delta will be shown. Otherwise the delta will be "~":' | ||
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| benchstat "perf/$PREV_HEAD_SHA.txt" "perf/$HEAD_SHA.txt" |
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| //+build tools | ||
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| package main | ||
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| import ( | ||
| "golang.org/x/perf/benchstat" | ||
| ) |