Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 381fe5dc84066199b69622ed46792e22d89b76da
https://github.com/WebKit/WebKit/commit/381fe5dc84066199b69622ed46792e22d89b76da
Author: Dan Glastonbury <[email protected]>
Date: 2026-04-16 (Thu, 16 Apr 2026)
Changed paths:
A Tools/Scripts/analyze-ftime-trace
Log Message:
-----------
[Tools] Add a script to analyse -ftime-trace output
https://bugs.webkit.org/show_bug.cgi?id=312529
rdar://174966545
Reviewed by Geoffrey Garen.
Utility for analyzing the output of clang -ftime-trace, removing the need to
install ClangBuildAnalyzer. Supports both Xcode and CMake build directory
layouts (recursive JSON search).
Modes:
- Default: top headers by exclusive (self) parse time
- --templates: template instantiation hotspots
- --functions: slowest functions to compile
- --slowest-tu: TUs with longest frontend/backend time
- --summary: overall build time breakdown
- --categories: top event categories
- --trace-header: drill into include nesting for a specific header in a TU
- --filter: restrict header output to names matching a substring
* Tools/Scripts/analyze-ftime-trace: Added.
Canonical link: https://commits.webkit.org/311415@main
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