Native PHP worker pool on all platforms#3602
Merged
Merged
Conversation
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
… through a stack trace' Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
fredrikekelund
changed the title
Collaborator
📊 Performance Test ResultsComparing c829764 vs trunk app-size
site-editor
site-startup
Results are median values from multiple test runs. Legend: 🟢 Improvement (faster) | 🔴 Regression (slower) | ⚪ No change (<50ms diff) |
fredrikekelund
approved these changes
Jun 1, 2026
fredrikekelund
left a comment
fredrikekelund
left a comment
Contributor
There was a problem hiding this comment.
LGTM 👍 @bcotrim and I worked on this side by side at our meetup last week. Benchmark-wise, we concluded that there's no noticeable drawback to this approach compared to PHP_CLI_SERVER_WORKERS, so we're going with this "poor man's php-fpm" approach on all platforms
…into add-native-php-worker-pool-poc
…r-pool-poc # Conflicts: # .buildkite/pipeline.yml
Contributor
There was a problem hiding this comment.
The changes in this file fix RSM-3965
Contributor
There was a problem hiding this comment.
The changes in this file and in .buildkite/pipeline.yml serve to collect all site logs when an E2E test fails. Site logs are typically forwarded to the main process anyway, but this seems like a sensible thing to keep as the default. It will only make debugging easier
Contributor
|
The Linux E2E breakage seems to be CI specific and it exists on trunk, too. I'm proceeding to merge this PR |
1 task
bcotrim
added a commit
that referenced
this pull request
Jun 12, 2026
## Related issues - Closes STU-1537 (completes the part deferred from #3125) ## How AI was used in this PR Claude Code reconstructed the April context (#3125's deferred section, this PR's original debug instrumentation, and the language-pack copy races later documented in #3492), re-applied the bundle-read change cleanly on top of current trunk. ## Proposed Changes Language packs were the last site dependency still copied from the read-only CLI bundle into the writable `~/.studio/server-files/` cache on every CLI invocation. The copy was pure overhead: language packs are only ever read at site creation, to copy the matching locale's files into the new site's `wp-content/languages/`, and they only change when the app ships a new bundle. This PR has site creation read language packs directly from the bundled `wp-files/latest/languages/`, and drops the per-invocation copy step — shaving the remaining recursive dir-walk (~1,400 files) off CLI startup. Side benefits: - The copy step needed lockfile serialization (#3492) because concurrent CLI invocations raced on the shared cache (transient `ENOENT` warnings). With no copy and no writable cache, that bug class is gone by construction. - Site creation now skips the language-pack directory scans entirely for locales we don't bundle translations for (`WP_LOCALES`). - The existing `04-cleanup-obsolete-server-files` migration also removes the now-unused `~/.studio/server-files/language-packs/` (and its lockfile) on first run after upgrade. **On the April E2E failures that deferred this:** they never reproduced locally — neither at the CLI level (3/3 ja-locale sites healthy, WPLANG=ja, wp-admin 200) nor with the packaged-app Playwright suites that failed in CI back then. The Playground worker-spawn stack has been rewritten since (#3602), and the failure was never root-caused, so CI on this PR is the deciding signal. If mac E2E reds again, this time it fails on a clean branch with inspectable artifacts. ## Testing Instructions 1. `npm run download-language-packs` (plain `npm install` does not populate `wp-files/latest/languages`), then `npm run cli:build`. 2. Set a non-English locale (e.g. `"locale": "ja"` in `~/.studio/shared.json` or via Studio Settings) and create a site. 3. Verify the site's `wp-content/languages/` contains the locale's files (core + `plugins/` + `themes/`), wp-admin loads in that language, and Settings → General shows the locale selected under Site Language. 4. Verify `~/.studio/server-files/language-packs/` is deleted on first CLI run after upgrade and is not recreated. 5. Covered by e2e `localization.test.ts` (locale site creation + WPLANG) and `blueprints.test.ts` (blueprint provisioning). Verified locally on macOS arm64: typecheck, eslint, full unit suite (1963 tests), packaged-app e2e `localization.test.ts` 4/4 (twice) and `blueprints.test.ts` 6/6. ## Pre-merge Checklist - [x] Have you checked for TypeScript, React or other console errors?
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Related issues
How AI was used in this PR
Proposed Changes
Using
PHP_CLI_SERVER_WORKERSfor concurrency is only supported on macOS and Linux. We want concurrency on Windows, too. This PR accomplishes that by implementing a Node.js HTTP load balancer that proxies requests to a fixed pool of 4php -Sprocesses. This works surprisingly well in our testing.In our benchmarks, this solution yields ~30% performance improvement on Windows compared to Playground.
Testing Instructions
CI should pass
Pre-merge Checklist