benchmark.yml

name: benchmark

# Manual-only: BenchmarkDotNet runs are too slow and CPU-noisy to gate every PR on. Trigger this on a
# branch to capture serialization numbers; results are printed in the job log.
on:
  workflow_dispatch:
    inputs:
      filter:
        description: "BenchmarkDotNet filter (e.g. '*Serialize*')"
        required: false
        default: "*"

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

jobs:
  benchmark:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    permissions:
      contents: read
      actions: read
      id-token: write
    env:
      DOTNET_CLI_TELEMETRY_OPTOUT: 1
      DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
      # Bind the workflow input to an env var so it is never interpolated into the run script text
      # (avoids shell injection); the run steps reference it as a normal, quoted shell variable.
      FILTER: ${{ inputs.filter }}

    steps:
    - name: CargoWall
      uses: code-cargo/cargowall-action@78f9fbcb3561c6ad9289e5b740616216e8cbd232 # v1.3.5
    - name: Checkout
      uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      with:
        persist-credentials: false

    - name: Setup dotnet
      uses: actions/setup-dotnet@26b0ec14cb23fa6904739307f278c14f94c95bf1 # v5.4.0
      with:
        cache: true
        cache-dependency-path: '**/packages.linux-x64.lock.json'
        dotnet-version: |
          8.x
          10.x

    - name: Serialized size report
      run: dotnet run -c Release --project util/Benchmarks -f net10.0 -- --sizes

    - name: Benchmarks (net10.0)
      run: dotnet run -c Release --project util/Benchmarks -f net10.0 -- --filter "${FILTER:-*}"

    - name: Benchmarks (net8.0)
      run: dotnet run -c Release --project util/Benchmarks -f net8.0 -- --filter "${FILTER:-*}"