Where the minutes go (30d)
Waste detected
Biggest wins first, each with the exact config fix.
Docker build without layer cache · Build Wheels
The Docker build has no layer cache, so every run re-executes every layer from scratch. Add `cache-from: type=gha` / `cache-to: type=gha,mode=max` to the build step.
- uses: docker/build-push-action@v6
with:
cache-from: type=gha
cache-to: type=gha,mode=maxNo concurrency control · Build Wheels
Add a `concurrency:` block keyed on branch to cancel superseded runs when devs push twice quickly.
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: trueNo concurrency control · CLA Assistant
Add a `concurrency:` block keyed on branch to cancel superseded runs when devs push twice quickly.
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: trueAlso found: 5 more config fixes with negligible recoverable minutes — timeouts, retention, path filters
No job timeout · Build Wheels
No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.
jobs:
build:
runs-on: ubuntu-latest
timeout-minutes: 15Artifacts at default retention · Build Wheels
`upload-artifact` has no `retention-days`, so artifacts keep up to 90 days (storage cost). Set e.g. `retention-days: 7`.
- uses: actions/upload-artifact@v4
with:
name: build
path: dist/
retention-days: 7Premium runners (macOS / Windows) · Build Wheels
macOS bills ~10× and Windows ~2× a Linux minute. The cost estimate above assumes Linux, so your real spend is higher. Move any job that doesn't need them to `ubuntu-latest`.
jobs:
build:
runs-on: ubuntu-latest # ~10x cheaper than macos-latestFull-history clone (fetch-depth: 0) · Build Wheels
checkout fetches the entire git history every run (`fetch-depth: 0`) and nothing in the workflow appears to read it. Remove the line — the default shallow clone is much faster on big repos. Keep it if a step genuinely needs history.
- uses: actions/checkout@v4
# fetch-depth: 0 removed — default shallow clone is enough hereNo job timeout · CLA Assistant
No job sets `timeout-minutes`, so a hung step can run to GitHub's 6-hour default. Add `timeout-minutes` to each job.
jobs:
build:
runs-on: ubuntu-latest
timeout-minutes: 15Copy every fix as one block (6 snippets, annotated per workflow)
# Docker build without layer cache — applies to: Build Wheels
- uses: docker/build-push-action@v6
with:
cache-from: type=gha
cache-to: type=gha,mode=max
# No concurrency control — applies to: Build Wheels, CLA Assistant
concurrency:
group: ${{ github.workflow }}-${{ github.ref }}
cancel-in-progress: true
# No job timeout — applies to: Build Wheels, CLA Assistant
jobs:
build:
runs-on: ubuntu-latest
timeout-minutes: 15
# Artifacts at default retention — applies to: Build Wheels
- uses: actions/upload-artifact@v4
with:
name: build
path: dist/
retention-days: 7
# Premium runners (macOS / Windows) — applies to: Build Wheels
jobs:
build:
runs-on: ubuntu-latest # ~10x cheaper than macos-latest
# Full-history clone (fetch-depth: 0) — applies to: Build Wheels
- uses: actions/checkout@v4
# fetch-depth: 0 removed — default shallow clone is enough hereEach snippet is representative — merge into the named workflow files rather than pasting wholesale.
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