1859486 - 3.53% sunspider (OSX) regression on Fri October 13 2023

Status: RESOLVED WONTFIX

(Core :: DOM: Core & HTML, defect)

Description

[Alexandru Ionescu (needinfo me) [:alexandrui]]

Perfherder has detected a browsertime performance regression from push 8db0af2f22c3b13ba4e7603be2f4557683db8ed9. As author of one of the patches included in that push, we need your help to address this regression.

Regressions:

Ratio	Test	Platform	Options	Absolute values (old vs new)	Performance Profiles
4%	sunspider	macosx1015-64-shippable-qr	fission webrender	127.92 -> 132.44	Before/After

Details of the alert can be found in the alert summary, including links to graphs and comparisons for each of the affected tests. Please follow our guide to handling regression bugs and let us know your plans within 3 business days, or the patch(es) may be backed out in accordance with our regression policy.

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Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1857731

Comment 2

[Olli Pettay [:smaug][[e-mail]]]

bug 1857731 made the scheduling a bit more realistic and now sunspider is at the same level it was Oct 5.