412a9c9f67
I didn't enable this by default for clang due to making the build time 10% worse or so. Unfortunate, but tbh devs for whom 10% of build time is not *that* bad should probably simply enable this. Change-Id: I8d1e5b6f3f76c649a4e2f115f534f7f97cee46e6
15 lines
512 B
Markdown
15 lines
512 B
Markdown
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synopsis: Clang build timing analysis
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cls: 587
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---
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We now have Clang build profiling available, which generates Chrome
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tracing files for each compilation unit. To enable it, run `meson configure
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build -Dprofile-build=enabled` then rerun the compilation.
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If you want to make the build go faster, do a clang build with meson, then run
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`maintainers/buildtime_report.sh build`, then contemplate how to improve the
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build time.
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You can also look at individual object files' traces in
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<https://ui.perfetto.dev>.
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