Closed Bug 1711966 Opened 3 years ago Closed 3 years ago

18.6 - 4.91% google-slides FirstVisualChange / google-slides LastVisualChange + 4 more (OSX, Windows) regression on Thu May 13 2021

Categories

(Core :: Security: PSM, defect)

Product:
Core
Component:
Security: PSM
Type:
defect

Tracking

()

Status:
RESOLVED WONTFIX
Tracking Flags:
Tracking Status
firefox90 --- affected

People

(Reporter: Bebe, Unassigned)

References

(Regression)

Details

(Keywords: perf, perf-alert, regression)

Perfherder has detected a browsertime performance regression from push 783b7ceb7ff9b54b25114927b60c0ebcaa4af16d. As author of one of the patches included in that push, we need your help to address this regression.

Regressions:

Ratio Suite Test Platform Options Absolute values (old vs new)
19% google-slides FirstVisualChange macosx1015-64-shippable-qr warm webrender 286.67 -> 340.00
15% google-slides ContentfulSpeedIndex windows10-64-shippable-qr warm webrender 695.38 -> 801.58
12% google-slides PerceptualSpeedIndex macosx1015-64-shippable-qr warm webrender 559.12 -> 627.00
11% google-slides PerceptualSpeedIndex macosx1015-64-shippable-qr warm webrender 551.83 -> 612.92
9% google-slides SpeedIndex macosx1015-64-shippable-qr warm webrender 552.83 -> 604.92
5% google-slides LastVisualChange macosx1014-64-shippable-qr warm webrender 2,510.00 -> 2,633.33

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.

Flags: needinfo?(dkeeler)

This is a) a backout of a patch that caused a performance regression, so backing this out would add that back, presumably and b) temporary while we finish some other work that should avoid the performance regression, at which point we will re-land that patch. So, I'm going to wontfix this.

Status: NEW → RESOLVED
Closed: 3 years ago
Flags: needinfo?(dkeeler)
Resolution: --- → WONTFIX
Has Regression Range: --- → yes
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