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Fix perf issue with regex_automata #28748

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Merged
merged 1 commit into from
Apr 21, 2025
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atuchin-m
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Resolves brave/brave-browser#45564

Removed chromium features: https://chromium-review.googlesource.com/c/chromium/src/+/6384041/4/third_party/rust/regex_automata/v0_4/BUILD.gn

A local static build and profiling data confirms that the issue is resolved:
image

@atuchin-m atuchin-m self-assigned this Apr 21, 2025
@atuchin-m atuchin-m requested a review from a team as a code owner April 21, 2025 16:16
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LGTM.

@atuchin-m atuchin-m force-pushed the fix-regex-automata-perf-issue branch from 6988d87 to 9a0da4d Compare April 21, 2025 18:03
@atuchin-m atuchin-m force-pushed the fix-regex-automata-perf-issue branch from 9a0da4d to 50f9963 Compare April 21, 2025 18:15
@atuchin-m atuchin-m requested a review from bridiver April 21, 2025 18:22
@atuchin-m atuchin-m enabled auto-merge (squash) April 21, 2025 19:19
@atuchin-m atuchin-m disabled auto-merge April 21, 2025 19:19
@atuchin-m atuchin-m enabled auto-merge (squash) April 21, 2025 20:08
@atuchin-m atuchin-m merged commit e343529 into master Apr 21, 2025
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@atuchin-m atuchin-m deleted the fix-regex-automata-perf-issue branch April 21, 2025 21:28
@github-actions github-actions bot added this to the 1.79.x - Nightly milestone Apr 21, 2025
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Released in v1.79.84

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[Perf] CPU regression in system_health.common_desktop after cr136
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