taskmill 0.7.1

Adaptive priority work scheduler with IO-aware concurrency and SQLite persistence
Documentation 
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name: Benchmarks

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: write
  pull-requests: write

env:
  CARGO_TERM_COLOR: always

jobs:
  benchmark:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable

      - name: Cache cargo
        uses: Swatinem/rust-cache@v2

      # critcmp is not a project dependency so Swatinem/rust-cache won't cover it.
      # Cache the compiled binary explicitly; bump the key suffix to force a reinstall.
      - name: Cache critcmp binary
        id: cache-critcmp
        uses: actions/cache@v4
        with:
          path: ~/.cargo/bin/critcmp
          key: critcmp-${{ runner.os }}

      - name: Install critcmp
        if: steps.cache-critcmp.outputs.cache-hit != 'true'
        run: cargo install critcmp

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

      - name: Run benchmarks
        run: cargo bench --all-features -- --save-baseline current --output-format bencher 2>&1 | tee bench-output.txt

      # ── Push to main: update timeline + cache baseline ──

      - name: Ensure _benchmarks branch exists
        if: github.event_name == 'push'
        run: git fetch origin _benchmarks:_benchmarks 2>/dev/null || git push origin HEAD:refs/heads/_benchmarks

      - name: Update benchmark timeline
        if: github.event_name == 'push'
        uses: benchmark-action/github-action-benchmark@v1
        with:
          tool: cargo
          output-file-path: bench-output.txt
          gh-pages-branch: _benchmarks
          benchmark-data-dir-path: timeline
          auto-push: true
          github-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Cache baseline for PR comparison
        if: github.event_name == 'push'
        run: |
          critcmp --export current > baseline.json
          # Rename the group inside the JSON so critcmp can diff two distinct columns.
          sed -i 's/"current"/"main"/' baseline.json

      - name: Save baseline to cache
        if: github.event_name == 'push'
        uses: actions/cache/save@v4
        with:
          path: baseline.json
          key: benchmark-baseline-${{ github.sha }}

      # ── Pull request: compare against cached baseline ──

      - name: Restore baseline
        if: github.event_name == 'pull_request'
        uses: actions/cache/restore@v4
        with:
          path: baseline.json
          key: benchmark-baseline-${{ github.event.pull_request.base.sha }}
          restore-keys: benchmark-baseline-

      - name: Compare benchmarks
        if: github.event_name == 'pull_request'
        id: compare
        run: |
          if [ ! -f baseline.json ]; then
            echo "::warning::No benchmark baseline found. Merge to main to generate one."
            exit 0
          fi
          critcmp --export current > pr-raw.json
          # Rename so critcmp sees "pr" vs "main" as two distinct columns.
          sed -i 's/"current"/"pr"/' pr-raw.json
          mv pr-raw.json pr.json
          echo 'result<<EOF' >> $GITHUB_OUTPUT
          critcmp baseline.json pr.json >> $GITHUB_OUTPUT
          echo 'EOF' >> $GITHUB_OUTPUT

      - name: Find existing comment
        if: github.event_name == 'pull_request' && steps.compare.outputs.result
        uses: peter-evans/find-comment@v3
        id: find_comment
        with:
          issue-number: ${{ github.event.pull_request.number }}
          comment-author: github-actions[bot]
          body-includes: "## Benchmark Comparison"

      - name: Post or update comment
        if: github.event_name == 'pull_request' && steps.compare.outputs.result
        uses: peter-evans/create-or-update-comment@v4
        with:
          issue-number: ${{ github.event.pull_request.number }}
          comment-id: ${{ steps.find_comment.outputs.comment-id }}
          edit-mode: replace
          body: |
            ## Benchmark Comparison

            <details>
            <summary>Click to expand</summary>

            ```
            ${{ steps.compare.outputs.result }}
            ```

            </details>