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[Perf] 25.9% regression in UI thread CPU usage at v1.77.1 #43653

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atuchin-m opened this issue Jan 31, 2025 · 2 comments
Open

[Perf] 25.9% regression in UI thread CPU usage at v1.77.1 #43653

atuchin-m opened this issue Jan 31, 2025 · 2 comments
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OS/Android Fixes related to Android browser functionality OS/Desktop perf perf-regression An perf browser issue by the perf dashboard priority/P3 The next thing for us to work on. It'll ride the trains.

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Alert information:

Median of segment before: 172.5085
Median of segment after: 217.2285
Relative change: 25.9%
Test: BravePerf/win11-hp-laptop-typical/system_health.common_desktop/cpuTime:browser_process:CrBrowserMain:all_stages:all_initiators/load_chrome/load_chrome_blank

brave-core range: v1.76.46 - v1.77.1
@atuchin-m atuchin-m added OS/Android Fixes related to Android browser functionality OS/Desktop perf perf-regression An perf browser issue by the perf dashboard priority/P3 The next thing for us to work on. It'll ride the trains. labels Jan 31, 2025
@atuchin-m atuchin-m self-assigned this Jan 31, 2025
@atuchin-m
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There is a difference when browser starts, but it's not clear whether it affects CPU usage or not.
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A compare build doesn't show any differences between the revisions:
results.html.zip

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OS/Android Fixes related to Android browser functionality OS/Desktop perf perf-regression An perf browser issue by the perf dashboard priority/P3 The next thing for us to work on. It'll ride the trains.
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