Closed Bug 1765183 Opened 3 years ago Closed 3 years ago

2.29% welcome PerceptualSpeedIndex (OSX) regression on Sat April 2 2022

Categories

(Firefox :: Messaging System, defect)

Product:
Firefox
Component:
Messaging System
Version:
Firefox 100
Type:
defect

Tracking

()

Status:
RESOLVED DUPLICATE of bug 1763666
Tracking Flags:
Tracking Status
firefox-esr91 --- unaffected
firefox99 --- unaffected
firefox100 --- wontfix
firefox101 --- fixed

People

(Reporter: afinder, Unassigned)

References

(Regression)

Details

(Keywords: perf, perf-alert, regression)

Perfherder has detected a browsertime performance regression from push 6dd62bffb5c1d84d013f5f273a022912314ce0ea. 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)
2% welcome PerceptualSpeedIndex macosx1015-64-shippable-qr fission warm webrender 1,286.17 -> 1,315.67

Improvements:

Ratio Test Platform Options Absolute values (old vs new)
9% welcome ContentfulSpeedIndex macosx1015-64-shippable-qr cold fission webrender 1,942.00 -> 1,775.92
7% welcome ContentfulSpeedIndex macosx1015-64-shippable-qr fission warm webrender 1,822.58 -> 1,686.33

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?(emcminn)
Regressions: 1762290

Set release status flags based on info from the regressing bug 1762292

status-firefox100: --- → affected
status-firefox101: --- → affected
status-firefox99: --- → unaffected
status-firefox-esr91: --- → unaffected
Status: NEW → RESOLVED
Closed: 3 years ago
Flags: needinfo?(emcminn)
Resolution: --- → DUPLICATE

All of these changes to about:welcome for Fx100 will be reverted for 101; this is the same stack referenced here: https://bugzilla.mozilla.org/show_bug.cgi?id=1763666#c2.

Has Regression Range: --- → yes
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