RESOLVED FIXED253859
Add additional STL things to PCH files 
https://bugs.webkit.org/show_bug.cgi?id=253859
Summary Add additional STL things to PCH files
Brent Fulgham
Reported 2023-03-13 17:27:39 PDT
Flamegraphs of the build revealed a few STL headers, and one OS logging header, that are particularly costly. Adding them to our precompiled header set shows a measurable reduction in build time. Prior to this change: **** Time summary: Compilation (10204 times): Parsing (frontend): 9250.1 s Codegen & opts (backend): 3311.8 s With this change: **** Time summary: Compilation (10202 times): Parsing (frontend): 8907.4 s Codegen & opts (backend): 3189.9 s
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Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2023-03-13 17:28:05 PDT
<rdar://problem/106673843>
Brent Fulgham
Comment 2 2023-03-13 17:31:28 PDT
Pull request: https://github.com/WebKit/WebKit/pull/11471
EWS
Comment 3 2023-03-14 10:09:47 PDT
Committed 261636@main (25b5fe6befd0): <https://commits.webkit.org/261636@main> Reviewed commits have been landed. Closing PR #11471 and removing active labels.
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