1946766 - 890.95% tp5o_scroll_paint_skip (Windows) regression on Tue February 4 2025

Status: RESOLVED FIXED

(Core :: Graphics: WebRender, defect)

Description

[Treeherder Bug Filer]

Perfherder has detected a talos performance regression from push 9d8b4c0b99ed4e5f39825c3c8890979ca64efdd8. 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)
891%	tp5o_scroll_paint_skip	windows11-64-shippable-qr	e10s fission stylo webrender	0.50 -> 5.00

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.

If you need the profiling jobs you can trigger them yourself from treeherder job view or ask a sheriff to do that for you.

You can run all of these tests on try with ./mach try perf --alert 43667

The following documentation link provides more information about this command.

For more information on performance sheriffing please see our FAQ.

If you have any questions, please do not hesitate to reach out to [e-mail].

Comment 1

[Glenn Watson [:gw]]

This was backed out, will investigate before relanding.