bench.yml

name: Bench

on:
  workflow_dispatch:
  schedule:
    - cron: "0 4 * * 6"

permissions:
  contents: read

concurrency:
  group: bench-${{ github.ref }}
  cancel-in-progress: true

jobs:
  bench:
    runs-on: ${{ matrix.os }}
    env:
      STRESS_RUN_ID: midge-${{ github.run_id }}-${{ github.run_attempt }}-${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
      fail-fast: false
    timeout-minutes: 90

    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Update Rust toolchain
        run: rustup update stable

      - name: Cache Rust dependencies
        uses: Swatinem/rust-cache@v2
        with:
          shared-key: "bench"

      - name: Install cntryl-tools
        run: cargo install --git https://github.com/cntryl/tools --rev 1ceecf1a6501793080235d2d46b2982f1424727c --locked

      - name: Build all benchmarks
        run: cargo bench --no-run

      - name: Run Tier 1 benchmarks (hotpath)
        run: cargo bench --bench 'tier1_*'

      - name: Run Tier 2 benchmarks (subsystem)
        run: cargo bench --bench 'tier2_*'

      - name: Run Tier 3 benchmarks (system)
        run: cargo bench --bench 'tier3_*'

      - name: Run Tier 4 benchmarks (integration)
        run: cargo bench --bench 'tier4_*'

      - name: Generate benchmark summary
        shell: bash
        run: |
          rm -f target/bench_results.json target/bench_summary.md
          if ! cntryl-tools summarize-benchmarks; then
            python3 scripts/validate_benchmark_summary_bootstrap.py target/bench_results.json
          fi

      - name: Upload benchmark summary
        uses: actions/upload-artifact@v7
        with:
          name: bench-summary-${{ matrix.os }}
          path: target/bench_summary.md