Adds CLI test fork server for improved test suite performance - #22942
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This can be rebased now that #22957 is merged |
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Done. |
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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