Closed Bug 1716272 Opened 5 years ago Closed 4 years ago

6.04 - 3.32% tresize / tresize + 2 more (Linux) regression on Tue June 8 2021

Categories

(Firefox :: Tabbed Browser, defect)

Product:
Firefox
Component:
Tabbed Browser
Version:
Firefox 91
Type:
defect

Tracking

()

Status:
RESOLVED FIXED
Tracking Flags:
Tracking Status
firefox-esr78 --- unaffected
firefox-esr91 --- wontfix
firefox89 --- unaffected
firefox90 --- unaffected
firefox91 --- wontfix
firefox92 --- wontfix
firefox93 --- wontfix

People

(Reporter: alexandrui, Unassigned)

References

(Regression)

Details

(4 keywords, Whiteboard: [fxperf:p3] fixed by bug 1786513)

Perfherder has detected a talos performance regression from push ad71dde9ed5e28957b124001a78c88fc1d94426a. 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)
6% tresize (docs) linux1804-64-shippable-qr e10s stylo webrender 20.65 -> 21.89
6% tresize (docs) linux1804-64-shippable e10s stylo 18.48 -> 19.56
5% tresize (docs) linux1804-64-shippable e10s stylo 18.51 -> 19.48
3% tresize (docs) linux1804-64-shippable-qr e10s stylo webrender-sw 20.70 -> 21.39

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?(jaws)

Set release status flags based on info from the regressing bug 1695472

status-firefox89: --- → unaffected
status-firefox90: --- → unaffected
status-firefox-esr78: --- → unaffected
Flags: needinfo?(gijskruitbosch+bugs)
Whiteboard: [fxperf]
Whiteboard: [fxperf] → [fxperf:p3]

tresize looks to be better now than it was prior to this regressing. Not sure how actionable this is going to be at this point.

status-firefox92: affected → wontfix
status-firefox93: --- → affected
status-firefox-esr91: --- → affected
Status: NEW → RESOLVED
Closed: 4 years ago
status-firefox93: affected → wontfix
Resolution: --- → INCOMPLETE
Flags: needinfo?(gijskruitbosch+bugs)
status-firefox-esr91: affected → wontfix
Flags: needinfo?(jaws)
Has Regression Range: --- → yes

Bug 1786513 fixed what likely caused the regression here, by going back to a resize event handler instead of a ResizeObserver.

Depends on: 1786513
Resolution: INCOMPLETE → FIXED
Whiteboard: [fxperf:p3] → [fxperf:p3] fixed by bug 1786513
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