1738242 - 10.46 - 3.07% JS / Explicit Memory + 4 more (OSX, Windows) regression on Mon October 25 2021

Status: RESOLVED WONTFIX

(Core :: Performance: General, defect)

Description

[Acasandrei Beatrice (needinfo me)]

Perfherder has detected a awsy performance regression from push 5c29a315aa4aa1a19d5e2d65e5ba57df0c8501a2. 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)
10%	JS	windows10-64-2004-shippable-qr	tp6	244,202,399.77 -> 269,743,336.77
9%	JS	macosx1015-64-shippable-qr	fission tp6	226,805,277.37 -> 248,161,108.97
9%	JS	macosx1015-64-shippable-qr	fission tp6	227,938,521.54 -> 249,205,865.69
5%	Explicit Memory	windows10-64-2004-shippable-qr	tp6	633,901,441.62 -> 667,858,726.66
4%	Resident Memory	windows10-64-2004-shippable-qr	tp6	854,313,913.60 -> 886,740,387.46
3%	Explicit Memory	macosx1015-64-shippable-qr	fission tp6	660,810,382.00 -> 681,086,405.41

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 offending patch(es) will be backed out in accordance with our regression policy.

For more information on performance sheriffing please see our FAQ.

Comment 1

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

Set release status flags based on info from the regressing bug 1736057

Comment 2

[Denis Palmeiro [:denispal]]

These memory regressions are expected in a trade off for page load performance.