bench_run.yaml

name: MicroBenchmarks

on:
  push:
    branches:
      - "main"
  pull_request:
  # `workflow_dispatch` allows CodSpeed to trigger backtest
  # performance analysis in order to generate initial data.
  workflow_dispatch:

jobs:
  benchmarks:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: Swatinem/rust-cache@v2
        with:
          # this line means that only the main branch writes to the cache
          # benefits:
          # * prevents main branch caches from being evicted in favor of a PR cache
          # * saves about 1min per workflow by skipping the actual cache write
          # downsides:
          # * PRs that update rust version or changes deps will be slow to iterate on due to changes not being cached.
          save-if: ${{ github.ref == 'refs/heads/main' }}
      - uses: taiki-e/install-action@v2
        with:
          tool: cargo-codspeed
      - name: Build the benchmark target(s)
        run: cargo codspeed build --features alpha-transforms
      - name: Run the benchmarks
        uses: CodSpeedHQ/action@v2
        with:
          run: cargo codspeed run