Ci benchmarks#2019
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Add a consolidated benchmark suite (`ci_benchmark`) and a GitHub Actions
workflow that automatically compares performance against the main branch
baseline on every PR.
Benchmark coverage (13 measurements, ~4 min on CI):
- BPE GPT-2: encode, batch, no-cache, batch-no-cache
- Llama-3: encode, batch, encode-fast, char-offsets, concurrent-4t
- Serialization: GPT-2 load, Llama-3 load, Llama-3 save
- Training: BPE small corpus
CI workflow:
- On push to main: run benchmarks, store baseline in gh-pages branch
- On PR: run benchmarks, compare vs baseline, post/update a single
PR comment with the delta table
- Alert threshold: 15% regression (warn, don't fail)
Uses benchmark-action/github-action-benchmark with criterion's bencher
output format for machine-readable results.
- pytest-benchmark based test suite covering: - BPE GPT-2: encode, encode_batch, multithreaded (4 workers) - Llama-3: encode, encode_batch, encode_fast, multithreaded, decode_batch - Async: async_encode_batch, async_encode_batch_fast - Serialization: from_file, to_str, from_str (roberta, llama3, albert) - Training: BPE small corpus - CI workflow: separate benchmark-python job with sccache + maturin - Re-enabled ci-benchmarks branch trigger for testing
- New benchmark-trigger.yml: maintainer comments '/benchmark' on a PR to dispatch the benchmark workflow on the PR's ref - Upload steps gated on github.event_name == 'push' so workflow_dispatch (PR runs) never overwrite the baseline - Trigger requires MEMBER/OWNER/COLLABORATOR association
…en done - benchmark-trigger.yml creates a 'Benchmark Results' check on the PR head SHA - benchmarks.yml marks it in_progress at start, completed (success/failure) at end - The check body contains the comparison markdown table - Can be made a required check in branch protection rules
Rust: - Push to main: runs with --save-baseline main, uploads criterion data (tar.gz) + bencher output to HF Hub - workflow_dispatch: downloads criterion baseline, runs with --baseline main for automatic criterion comparison - criterion HTML report uploaded as GitHub Actions artifact (30 day retention) Python: - bench_output.json uploaded as GitHub Actions artifact - Baseline stored/compared via HF Hub as before Both: - Artifacts downloadable from the workflow run page for manual inspection - Comparison tables posted to PR comments
… coding - Switch both jobs to ubuntu-latest-4-cores for more consistent results - Replace plaintext markdown tables with SVG charts generated by .github/scripts/render_bench_svg.py - Dark theme, monospace font, red/green bars + delta percentages - SVGs uploaded as artifacts and embedded in PR comments - Supports both Rust (bencher format) and Python (pytest-benchmark JSON)
Collaborator
Author
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/benchmark |
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The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update. |
ArthurZucker
commented
Apr 10, 2026
ArthurZucker
commented
Apr 10, 2026
Collaborator
Author
|
/benchmark |
ArthurZucker
commented
Apr 10, 2026
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
SVG doesn't render in GitHub PR comments. Now: - render_bench_svg.py supports --output .png via cairosvg - PNGs uploaded to hf-internal-testing/tokenizers-bench/charts/ - PR comments embed as  which GitHub renders correctly
Collaborator
Author
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/benchmark |
Rust Benchmark ResultsCommit: |
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