## Summary
Add a permanent, non-failing performance regression detection system
using Chrome DevTools Protocol metrics, with automatic PR commenting.
## Changes
- **What**: Performance testing infrastructure — `PerformanceHelper`
fixture class using CDP `Performance.getMetrics` to collect
`RecalcStyleCount`, `LayoutCount`, `LayoutDuration`, `TaskDuration`,
`JSHeapUsedSize`. Adds `@perf` Playwright project (Chromium-only,
single-threaded, 60s timeout), 4 baseline perf tests, CI workflow with
sticky PR comment reporting, and `perf-report.js` script for generating
markdown comparison tables.
## Review Focus
- `PerformanceHelper` uses `page.context().newCDPSession(page)` — CDP is
Chromium-only, so perf metrics are not collected on Firefox. This is
intentional since CDP gives us browser-level style recalc/layout counts
that `performance.mark/measure` cannot capture.
- The CI workflow uses `continue-on-error: true` so perf tests never
block merging.
- Baseline comparison uses `dawidd6/action-download-artifact` to
download metrics from the target branch, following the same pattern as
`pr-size-report.yaml`.
## Stack
This is the foundation PR for the Firefox performance fix stack:
1. **→ This PR: perf testing infrastructure**
2. `perf/fix-cursor-cache` — cursor style caching (depends on this)
3. `perf/fix-subgraph-svg` — SVG pre-rasterization (depends on this)
4. `perf/fix-clippath-raf` — RAF batching for clip-path (depends on
this)
PRs 2-4 are independent of each other.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-9170-feat-add-performance-testing-infrastructure-with-CDP-metrics-3116d73d3650817cb43def6f8e9917f8)
by [Unito](https://www.unito.io)
---------
Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Alexander Brown <drjkl@comfy.org>
* migration: npm to pnpm
Step 1, package and lockfile
* migration: npm to pnpm
Step 2: docs / LLM instructions
* migration: npm to pnpm
Step 3: More documentation updates
* migration: npm to pnpm
Step 4: Even more documentation
* migration: npm to pnpm
Step 5: GitHub Actions
* migration: npm to pnpm
Step 6: PNPM installation in actions. This merge is going to be painful.
* migration: npm to pnpm
Unignore and add pnpm lockfile.
* migration: npm to pnpm
package-lock.json -> pnpm-lock.yaml
* migration: explicit @primeuix/styled, move glob to prod deps
* migration: more explicit deps required by the importmap plugin and vite
* fix: missed merge artifact
* fix: Make sure pnpm is available to install wrangler
* migration: pnpm for dev-release.yaml
* migration: new setup action version
Won't work until that is updated and a new release is cut.
* migration: Playwright needs uuid
* migration: Add explicit deps for lobehub
* chore(version-bump.yaml): change cache from npm to pnpm to optimize package management and improve build performance
* migration: install pnpm in version-bump action
---------
Co-authored-by: snomiao <snomiao@gmail.com>
- Increased Playwright test retries from 2 to 3 in CI environment
- Added Vitest retry configuration (2 retries) for unit tests in CI
- Addresses issues #4658 and #4416 with consistently flaky tests
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-authored-by: Claude <noreply@anthropic.com>
* Restore backend state when Playwright test finishes. Resolve#1094
* Add warning when env var not set
* Rename and replace with scaffolding option for models dir
* Rename
* Define another env var [skip ci]
* Fix paths [skip ci]
* Update README.md
---------
Co-authored-by: Chenlei Hu <huchenlei@proton.me>
* link release pops up searchbox by default (#348)
* link release pops up searchbox by default
* Update browser test
* Fix tests
* Update test expectations [skip ci]
---------
Co-authored-by: github-actions <github-actions@github.com>
* Auto link node on creation
* Handle corner case
* Add some browser tests
* Add auto link test
* Force enable
* Confirm setting before running test
* Update test expectations [skip ci]
---------
Co-authored-by: github-actions <github-actions@github.com>
