1914275 - 178.42 - 6.67% pdfpaint issue6741.pdf / pdfpaint issue3848.pdf + 7 more (Windows) regression on Tue August 6 2024

Status: RESOLVED WONTFIX

(Core :: Graphics: Canvas2D, defect)

Description

[Treeherder Bug Filer]

Perfherder has detected a talos performance regression from push 71bf1129a12562d0be35a5df2f452fbf3c042fac. 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)
178%	pdfpaint issue6741.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	4,267.93 -> 11,882.98
105%	pdfpaint bug1260585.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	382.59 -> 785.00
72%	pdfpaint issue8076.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	3,283.33 -> 5,660.68
36%	pdfpaint issue16127.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	521.91 -> 710.85
18%	pdfpaint issue16454.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	721.04 -> 852.33
15%	pdfpaint ibwa-bad.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	159.32 -> 183.63
8%	pdfpaint bug1749563.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	798.39 -> 866.11
7%	pdfpaint issue12810.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	284.37 -> 304.56
7%	pdfpaint issue3848.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	184.79 -> 197.11

Improvements:

Ratio	Test	Platform	Options	Absolute values (old vs new)
95%	pdfpaint bug1721218_reduced.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	7,024.02 -> 332.47
65%	pdfpaint issue10717.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	1,172.81 -> 412.84
62%	pdfpaint tiling-pattern-box.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	1,461.26 -> 549.77
62%	pdfpaint issue8078.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	4,444.68 -> 1,704.02
54%	pdfpaint bug1795263.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	382.12 -> 176.16
...	...	...	...	...
2%	pdfpaint pr12828.pdf	windows11-64-shippable-qr	e10s fission stylo webrender	145.19 -> 142.27

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 these tests on try with ./mach try perf --alert 1715

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 1910138

Comment 2

[Lee Salzman [:lsalzman]]

These aren't real regressions, just shift from reverting an experimental patch.