Adds CLI test fork server for improved test suite performance - #22942
Draft
NickSdot wants to merge 6 commits into
Draft
Adds CLI test fork server for improved test suite performance#22942NickSdot wants to merge 6 commits into
NickSdot wants to merge 6 commits into
Conversation
NickSdot
force-pushed
the
perf/cli-test-fork-server
branch
from
July 30, 2026 15:10
408abe8 to
352ea7c
Compare
This was referenced Jul 30, 2026
NickSdot
force-pushed
the
perf/cli-test-fork-server
branch
from
July 30, 2026 22:47
e126e24 to
4c3274a
Compare
NickSdot
referenced
this pull request
Jul 31, 2026
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
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Extracted from #22917.
Reuses CLI startup via isolated fork server for
run-tests.php. Compatible test processes reuse the initialised CLI parent, which forks a fresh child for every invocation. Avoids repeated CLI startup while still having process isolation.It is limited to compatible POSIX configurations with CLI OPcache disabled. Ineligible tests and server failures fall back to the existing
proc_open()path;TEST_PHP_FORK_SERVER=0can be used to disable it entirely.Intended to merge after #22957 so the fallback uses structured subprocess commands where possible.
Result
Values in seconds; measured on macOS.
-j1-j10Reproduction:
Ref: f4947c1#commitcomment-194333284
cc @arnaud-lb