pola-rs/polars GitHub Actions scorecard

Public GitHub Actions data, last 30 days. Updated 7/1/2026, 10:28:36 PM.

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576 min/mo
recoverable (~7% of CI time) · across 29 patterns · ≈$3/mo
Rough estimate from wall-clock run time at standard Linux pricing. Public repos run Actions free, so the dollar figures are the equivalent cost on a private repo. Matrix/parallel jobs and your actual runners will differ.
9.6%
failure rate, 30d
2m
avg time to recover from a failure
28 workflows · 500 runs (16.7/day) · 8,032 CI-min (wall-clock) · ≈$48 at private-repo rates (30d)
or track on every push →

Waste detected

Biggest wins first, each with the exact config fix.

Workflow runs on both push and pull_request · Code coverage

~298 min/mo · ≈$2/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

Full guide: how to fix this →

Workflow runs on both push and pull_request · Test Python

~114 min/mo · ≈$1/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

Full guide: how to fix this →

Missing dependency cache · Build Python documentation

~82 min/mo

Set `cache: 'pip'` on your `actions/setup-python` step, or add an `actions/cache@v4` step keyed on your requirements/lock file.

- uses: actions/setup-python@v5
  with:
    python-version: '3.12'
    cache: 'pip'

Full guide: how to fix this →

Concurrency without cancel-in-progress · Build Python documentation

~27 min/mo

Concurrency group has no `cancel-in-progress: true`, so superseded runs queue instead of cancelling. Add it to supersede stale runs.

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

Full guide: how to fix this →

Workflow runs on both push and pull_request · Lint Rust

~18 min/mo

Pushing to a branch and opening a PR triggers two runs. Pick one (usually `pull_request`) and exclude branch pushes for non-default branches.

on:
  push:
    branches: [main]
  pull_request:

Full guide: how to fix this →

Missing dependency cache · Lint Python

~15 min/mo

Set `cache: 'pip'` on your `actions/setup-python` step, or add an `actions/cache@v4` step keyed on your requirements/lock file.

- uses: actions/setup-python@v5
  with:
    python-version: '3.12'
    cache: 'pip'

Full guide: how to fix this →

Concurrency without cancel-in-progress · Build Rust documentation

~15 min/mo

Concurrency group has no `cancel-in-progress: true`, so superseded runs queue instead of cancelling. Add it to supersede stale runs.

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

Full guide: how to fix this →

No concurrency control · Pull request labeler

~5 min/mo

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: true

Full guide: how to fix this →

No concurrency control · changes-dsl labeler

~2 min/mo

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: true

Full guide: how to fix this →

No job timeout · Pull request labeler

~0 min/mo

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: 15

Full guide: how to fix this →

No job timeout · Update draft releases

~0 min/mo

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: 15

Full guide: how to fix this →

No job timeout · Test Python

~0 min/mo

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: 15

Full guide: how to fix this →

Premium runners (macOS / Windows) · Test Python

~0 min/mo

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-latest

No job timeout · Lint Python

~0 min/mo

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: 15

Full guide: how to fix this →

No job timeout · Lint global

~0 min/mo

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: 15

Full guide: how to fix this →

No path filters on triggers · Lint global

~0 min/mo

Runs on every push/PR with no `paths:` filter, so docs-only changes still trigger full CI. Add a `paths:` filter if that's common.

on:
  pull_request:
    paths:
      - 'src/**'
      - 'package.json'

Full guide: how to fix this →

No job timeout · Benchmark

~0 min/mo

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: 15

Full guide: how to fix this →

No job timeout · Build Python documentation

~0 min/mo

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: 15

Full guide: how to fix this →

No job timeout · Build Rust documentation

~0 min/mo

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: 15

Full guide: how to fix this →

No job timeout · Lint Rust

~0 min/mo

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: 15

Full guide: how to fix this →

No job timeout · Test Rust

~0 min/mo

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: 15

Full guide: how to fix this →

Premium runners (macOS / Windows) · Test Rust

~0 min/mo

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-latest

No job timeout · Test Bytecode Parser

~0 min/mo

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: 15

Full guide: how to fix this →

No job timeout · Build documentation

~0 min/mo

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: 15

Full guide: how to fix this →

Premium runners (macOS / Windows) · Build documentation

~0 min/mo

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-latest

No job timeout · Code coverage

~0 min/mo

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: 15

Full guide: how to fix this →

Artifacts at default retention · Code coverage

~0 min/mo

`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: 7

Premium runners (macOS / Windows) · Code coverage

~0 min/mo

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-latest

No job timeout · changes-dsl labeler

~0 min/mo

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: 15

Full guide: how to fix this →

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