SDK Benchmark Tests workflow (open-telemetry/opentelemetry-python)

name: SDK Benchmark Tests
 
on:
  push:
    branches: [ main ]
 
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  sdk-benchmarks:
    timeout-minutes: 30
    permissions:
      contents: write # required for pushing to gh-pages
    runs-on: oracle-bare-metal-64cpu-1024gb-x86-64-ubuntu-24
    container:
      image: python:3.13-slim
    steps:
    - name: Install Git # since Git isn't available in the container image used above
      run: |
        apt-get update
        apt-get install -y git
    - name: Make repo safe for Git inside container
      run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
    - name: Checkout Core Repo @ SHA - ${{ github.sha }}
      uses: actions/checkout@v4
    - name: Install tox
      run: pip install tox-uv
    - name: Run tox
      run: tox -e benchmark-opentelemetry-sdk -- -k opentelemetry-sdk/benchmarks --benchmark-json=opentelemetry-sdk/output.json
    - name: Report on SDK benchmark results
      uses: benchmark-action/github-action-benchmark@v1
      with:
        name: OpenTelemetry Python SDK Benchmarks
        tool: pytest
        output-file-path: opentelemetry-sdk/output.json
        gh-pages-branch: gh-pages
        github-token: ${{ secrets.GITHUB_TOKEN }}
        # Make a commit on `gh-pages` with benchmarks from previous step
        benchmark-data-dir-path: "benchmarks"
        auto-push: true
        max-items-in-chart: 100
        # Alert with a commit comment on possible performance regression
        alert-threshold: '200%'
        comment-on-alert: true
        alert-comment-cc-users: "@open-telemetry/python-approvers,@open-telemetry/python-maintainers"