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build: add manually-dispatched stress-test workflow #64118

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build: add manually-dispatched stress-test workflow
joyeecheung Jun 24, 2026
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fixup! build: add manually-dispatched stress-test workflow
joyeecheung Jun 29, 2026
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116 changes: 116 additions & 0 deletions .github/workflows/stress-test.yml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,116 @@
name: Stress Test (rebase tested branch on main for cache reuse)

on:
workflow_dispatch:
inputs:
test_path:
description: Test path or glob (e.g. test/parallel/test-debugger-break.js or "test/parallel/test-debugger-*")
required: true
type: string
os:
description: Runner to use
required: true
default: macos-15
type: choice
options:
- macos-15
- ubuntu-24.04
- ubuntu-24.04-arm
repeat:
description: Number of times to repeat each test (--repeat)
required: true
default: '1000'
type: string
test_jobs:
description: Number of jobs to run in parallel (-j).
required: true
default: '1'
type: string
test_args:
description: Extra args for tools/test.py, space-separated (e.g. "-t 10 --worker")
required: false
default: ''
type: string

env:
PYTHON_VERSION: '3.14'
XCODE_VERSION: '16.4'
CLANG_VERSION: '19'
RUSTC_VERSION: '1.82'

permissions:
contents: read

jobs:
stress-test:
runs-on: ${{ inputs.os }}
env:
# Linux builds with clang (matching test-linux.yml), macOS with gcc/g++.
CC: ${{ startsWith(inputs.os, 'ubuntu') && 'sccache clang-19' || 'sccache gcc' }}
CXX: ${{ startsWith(inputs.os, 'ubuntu') && 'sccache clang++-19' || 'sccache g++' }}
Comment on lines +49 to +50

@Renegade334 Renegade334 Jun 28, 2026

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Don't think that there's any need to cache locally on the runner if there's only one build per workflow run?

Suggested change
CC: ${{ startsWith(inputs.os, 'ubuntu') && 'sccache clang-19' || 'sccache gcc' }}
CXX: ${{ startsWith(inputs.os, 'ubuntu') && 'sccache clang++-19' || 'sccache g++' }}
CC: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} ${{ startsWith(inputs.os, 'ubuntu') && 'clang-19' || 'gcc' }}
CXX: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} ${{ startsWith(inputs.os, 'ubuntu') && 'clang++-19' || 'g++' }}

@joyeecheung joyeecheung Jun 29, 2026 •
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I think it's still useful, suppose we are running the stress tests:

  1. On node:main as a base line
  2. On node:try-fix-flake with an attempted fix
  3. The attempted fix didn't work, push a new commit with a different approach to node:try-fix-flake and try again -> having build cache would be very helpful in this case (the changes are likely lib-only or test-only).
  4. The attempted fix didn't work, push another new commit with a different approach and try again -> having build cache would be very helpful in this case

and so on

# Enable sccache - this is okay for a manually-dispatched workflow that is typically used to
# test lib-only or test-only deflaking changes. This should be able to pick up cache from
# test-linux.yml and test-macos.yml running on the main branch.
SCCACHE_GHA_ENABLED: 'true'
SCCACHE_IDLE_TIMEOUT: '0'
steps:
- uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
with:
persist-credentials: false
path: node
- name: Install Clang ${{ env.CLANG_VERSION }}
if: runner.os == 'Linux'
uses: ./node/.github/actions/install-clang
with:
clang-version: ${{ env.CLANG_VERSION }}
- name: Set up Xcode ${{ env.XCODE_VERSION }}
if: runner.os == 'macOS'
run: sudo xcode-select -s /Applications/Xcode_${{ env.XCODE_VERSION }}.app
- name: Set up Python ${{ env.PYTHON_VERSION }}
uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
with:
python-version: ${{ env.PYTHON_VERSION }}
allow-prereleases: true
- name: Install Rust ${{ env.RUSTC_VERSION }}
run: |
rustup override set "$RUSTC_VERSION"
rustup --version
- name: Set up sccache

@Renegade334 Renegade334 Jun 28, 2026

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Suggested change
- name: Set up sccache
- name: Set up sccache
if: github.base_ref == 'main' || github.ref_name == 'main'

uses: Mozilla-Actions/sccache-action@9e7fa8a12102821edf02ca5dbea1acd0f89a2696 # v0.0.10
with:
version: v0.16.0
Comment thread
joyeecheung marked this conversation as resolved.
- name: Environment Information
run: npx envinfo@7.21.0
# This is needed due to https://github.com/nodejs/build/issues/3878
- name: Cleanup
if: runner.os == 'macOS'
run: |
echo "::group::Free space before cleanup"
df -h
echo "::endgroup::"
echo "::group::Cleaned Files"

sudo rm -rf /Users/runner/Library/Android/sdk

echo "::endgroup::"
echo "::group::Free space after cleanup"
df -h
echo "::endgroup::"
- name: Build
run: make -C node build-ci -j"$(getconf _NPROCESSORS_ONLN)" V=1 CONFIG_FLAGS="--error-on-warn --v8-enable-temporal-support"
- name: Stress run ${{ inputs.test_path }} x${{ inputs.repeat }}
shell: bash
env:
REPEAT: ${{ inputs.repeat }}
JOBS: ${{ inputs.test_jobs }}
TEST_ARGS: ${{ inputs.test_args }}
TEST_PATH: ${{ inputs.test_path }}
run: |
cd node
read -ra EXTRA_ARGS <<< "$TEST_ARGS"
python3 tools/test.py \
--repeat "$REPEAT" \
-j "$JOBS" \
-p actions \
"${EXTRA_ARGS[@]}" \
"$TEST_PATH"
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