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Benchmark Baseline workflow (clap-rs/clap)

The Benchmark Baseline workflow from clap-rs/clap, explained and optimized by Latchkey.

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CI health: C - fair

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Source: clap-rs/clap.github/workflows/bench-baseline.ymlLicense Apache-2.0View source

What it does

This is the Benchmark Baseline workflow from the clap-rs/clap repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)
name: Benchmark Baseline

permissions:
  contents: read

on:
  push:
    branches: master

jobs:
  bench:
    name: Binary Size
    permissions:
      checks: write
    strategy:
      matrix:
        build: [linux]
        include:
        - build: linux
          os: ubuntu-latest
    runs-on: "${{ matrix.os }}"
    steps:
    - name: Checkout repository
      uses: actions/checkout@v7
    - name: Install Rust
      uses: dtolnay/rust-toolchain@stable
      with:
        toolchain: stable
    - uses: Swatinem/rust-cache@v2
    - name: Install Bencher
      uses: bencherdev/bencher@main
    - name: Build
      run: "cargo build --package clap --example git-derive -F derive --release"
      env:
        CARGO_PROFILE_RELEASE_STRIP: true
    - name: Report
      run: |
        bencher run \
        --project $(echo "${{ github.repository }}" | sed 's/\//-/g') \
        --branch "${{ github.ref_name }}" \
        --testbed "${{ matrix.os }}" \
        --token '${{ secrets.BENCHER_API_TOKEN }}' \
        --github-actions '${{ secrets.GITHUB_TOKEN }}' \
        --adapter json \
        --file-size target/release/examples/git-derive

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: Benchmark Baseline
 
permissions:
  contents: read
 
on:
  push:
    branches: master
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  bench:
    timeout-minutes: 30
    name: Binary Size
    permissions:
      checks: write
    strategy:
      matrix:
        build: [linux]
        include:
        - build: linux
          os: ubuntu-latest
    runs-on: "${{ matrix.os }}"
    steps:
    - name: Checkout repository
      uses: actions/checkout@v7
    - name: Install Rust
      uses: dtolnay/rust-toolchain@stable
      with:
        toolchain: stable
    - uses: Swatinem/rust-cache@v2
    - name: Install Bencher
      uses: bencherdev/bencher@main
    - name: Build
      run: "cargo build --package clap --example git-derive -F derive --release"
      env:
        CARGO_PROFILE_RELEASE_STRIP: true
    - name: Report
      run: |
        bencher run \
        --project $(echo "${{ github.repository }}" | sed 's/\//-/g') \
        --branch "${{ github.ref_name }}" \
        --testbed "${{ matrix.os }}" \
        --token '${{ secrets.BENCHER_API_TOKEN }}' \
        --github-actions '${{ secrets.GITHUB_TOKEN }}' \
        --adapter json \
        --file-size target/release/examples/git-derive

What changed

3 third-party actions are referenced by a movable tag. Pin them to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout Swatinem/rust-cache