CodSpeed workflow (encode/uvicorn)

The CodSpeed workflow from encode/uvicorn, explained and optimized by Latchkey.

CI health: C - fair

Point runs-on at Latchkey and get run de-duplication, job timeouts, self-healing for flaky steps, and up to 58% lower cost, applied automatically.

Grade your own workflow free or run it on Latchkey →

Source: encode/uvicorn.github/workflows/benchmark.ymlLicense BSD-3-ClauseView source

What it does

This is the CodSpeed workflow from the encode/uvicorn repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: CodSpeed

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]

permissions:
  id-token: write
  contents: read

jobs:
  benchmarks:
    name: Run benchmarks
    runs-on: ubuntu-latest
    steps:
      - uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v7.0.0
        with:
          persist-credentials: false

      - name: Install uv
        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
        with:
          python-version: "3.13"
          enable-cache: true

      - name: Install dependencies
        run: scripts/install
        shell: bash

      - name: Run the benchmarks
        uses: CodSpeedHQ/action@a4a36bb07c0638b0b4ca52bf1f3dad1b4289e52f # v4.18.1
        with:
          mode: instrumentation
          run: uv run pytest tests/benchmarks/ --codspeed -n 0

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: CodSpeed
 
on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]
 
permissions:
  id-token: write
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  benchmarks:
    timeout-minutes: 30
    name: Run benchmarks
    runs-on: latchkey-small
    steps:
      - uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v7.0.0
        with:
          persist-credentials: false
 
      - name: Install uv
        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
        with:
          python-version: "3.13"
          enable-cache: true
 
      - name: Install dependencies
        run: scripts/install
        shell: bash
 
      - name: Run the benchmarks
        uses: CodSpeedHQ/action@a4a36bb07c0638b0b4ca52bf1f3dad1b4289e52f # v4.18.1
        with:
          mode: instrumentation
          run: uv run pytest tests/benchmarks/ --codspeed -n 0

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Cancel superseded runs when a branch or PR gets a newer push.
Add a job timeout so a hung step cannot burn hours of runner time.

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

astral-sh/setup-uv