add comment to PR after benchmark runs #20
Workflow file for this run
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| --- | |
| name: Benchmarks on AMD64 | |
| permissions: | |
| issues: write | |
| pull-requests: write | |
| on: [pull_request] | |
| jobs: | |
| benchmark-pull-request: | |
| runs-on: ubuntu-latest-8-cores | |
| steps: | |
| - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4 | |
| with: | |
| fetch-depth: 0 | |
| - id: goversion | |
| run: echo "goversion=$(cat .go-version)" >> "$GITHUB_OUTPUT" | |
| - uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0 | |
| with: | |
| go-version: ${{ steps.goversion.outputs.goversion }} | |
| - name: Run Benchmarks | |
| run: | | |
| BENCHSTAT_OUTPUT_FILE=result.txt make test-benchmark-compare REF=${{ github.event.pull_request.base.sha }} | |
| - run: | | |
| echo "\`\`\`" >> "$GITHUB_STEP_SUMMARY" | |
| cat result.txt >> "$GITHUB_STEP_SUMMARY" | |
| echo "\`\`\`" >> "$GITHUB_STEP_SUMMARY" | |
| cat <<EOL >> "$GITHUB_STEP_SUMMARY" | |
| <hr /> | |
| The table shows the median and 90% confidence interval (CI) summaries for each benchmark comparing the HEAD and the BASE of the pull request, and an A/B comparison under "vs base". The last column shows the statistical p-value with ten runs (n=10). | |
| The last row has the Geometric Mean (geomean) for the given rows in the table. | |
| Refer to [benchstat's documentation](https://pkg.go.dev/golang.org/x/perf/cmd/benchstat) for more help. | |
| EOL | |
| - name: Validate results under acceptable limit | |
| run: | | |
| export MAX_ACCEPTABLE_DIFFERENCE=5 | |
| while IFS= read -r line; do | |
| # Get fourth value, which is the comparison with the base. | |
| value="$(echo "$line" | awk '{print $4}')" | |
| if [[ "$value" = +* ]] || [[ "$value" = -* ]]; then | |
| if (( $(echo "${value//[^0-9.]/}"'>'"$MAX_ACCEPTABLE_DIFFERENCE" | bc -l) )); then | |
| echo "::error::$value is above the maximum acceptable difference ($MAX_ACCEPTABLE_DIFFERENCE)" | |
| exit 1 | |
| fi | |
| fi | |
| done < <(grep geomean result.txt) | |
| - uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| github.rest.issues.createComment({ | |
| issue_number: context.issue.number, | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| body: process.env.GITHUB_STEP_SUMMARY | |
| }) |