Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: d14a3b7571a7529d2572a9b021c5fd4b386c4a4e
https://github.com/WebKit/WebKit/commit/d14a3b7571a7529d2572a9b021c5fd4b386c4a4e
Author: Elliott Williams <[email protected]>
Date: 2026-10-02 (Fri, 02 Oct 2026)
Changed paths:
M Source/WTF/wtf/PlatformCocoa.cmake
M Source/bmalloc/PlatformCocoa.cmake
Log Message:
-----------
[CMake] Optimize bmalloc and FastMalloc.cpp in Debug builds on Cocoa
https://bugs.webkit.org/show_bug.cgi?id=325729
Reviewed by Zak Ridouh.
Xcode builds bmalloc at -O3 in every configuration (bmalloc's Base.xcconfig has
no
Debug override), and WTF.xcodeproj compiles FastMalloc.cpp, which inlines the
libpas
allocation fast paths, at -O3. The CMake Debug build compiled both at -O0,
making
allocation-heavy work about 2.5x slower and the WebContent process roughly 1.5x
slower overall than in the Xcode build. That was enough to make
timing-sensitive layout tests such as
media/modern-media-controls/macos-fullscreen-media-controls/macos-fullscreen-media-controls-mute-button-rtl-positioning.html
time out.
* Source/WTF/wtf/PlatformCocoa.cmake:
* Source/bmalloc/PlatformCocoa.cmake:
Canonical link: https://commits.webkit.org/322547@main
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