Closed Bug 1945465 Opened 9 days ago Closed 8 days ago

57.62 - 2.24% google-docs powerUsage_cpu_cores / speedometer3 React-Stockcharts-SVG/PanTheChart/total + 17 more (Android, Linux, OSX, Windows) regression on Mon January 27 2025

Categories

(Core :: JavaScript Engine, defect)

defect

Tracking

()

RESOLVED FIXED
136 Branch
Tracking Status
firefox-esr115 --- unaffected
firefox-esr128 --- unaffected
firefox135 --- unaffected
firefox136 --- fixed

People

(Reporter: intermittent-bug-filer, Unassigned)

References

(Regression)

Details

(Keywords: perf, perf-alert, regression)

Perfherder has detected a browsertime performance regression from push ef3cc8214ba8b349e4b64f42b1ffb4cc69d851fb. 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) Performance Profiles
58% google-docs powerUsage_cpu_cores windows11-64-shippable-qr fission warm webrender 37,737.42 -> 59,479.97 Before/After
44% google-docs PerceptualSpeedIndex macosx1470-64-shippable fission warm webrender 2,604.30 -> 3,737.08 Before/After
43% google-docs powerUsage_cpu_package windows11-64-shippable-qr fission warm webrender 53,615.34 -> 76,602.38 Before/After
43% google-docs PerceptualSpeedIndex windows11-64-shippable-qr fission warm webrender 1,210.56 -> 1,727.72 Before/After
40% google-docs LastVisualChange macosx1470-64-shippable fission warm webrender 5,311.94 -> 7,449.93 Before/After
37% google-docs LastVisualChange windows11-64-shippable-qr fission warm webrender 2,581.87 -> 3,549.72 Before/After
33% google-docs LastVisualChange linux1804-64-shippable-qr fission warm webrender 5,082.08 -> 6,755.12 Before/After
33% google-docs ContentfulSpeedIndex macosx1470-64-shippable fission warm webrender 1,431.62 -> 1,898.07 Before/After
32% google-docs PerceptualSpeedIndex linux1804-64-shippable-qr fission warm webrender 2,361.05 -> 3,123.84 Before/After
31% google-docs SpeedIndex macosx1470-64-shippable fission warm webrender 970.28 -> 1,270.25 Before/After
... ... ... ... ... ...
11% google-docs largestContentfulPaint windows11-64-shippable-qr fission warm webrender 704.71 -> 779.86 Before/After
8% google-docs largestContentfulPaint linux1804-64-shippable-qr fission warm webrender 1,197.33 -> 1,287.64 Before/After
6% google-docs largestContentfulPaint macosx1470-64-shippable fission warm webrender 984.66 -> 1,039.30 Before/After
4% speedometer3 React-Stockcharts-SVG/PanTheChart/Sync android-hw-a55-14-0-aarch64-shippable webrender 18.26 -> 19.06
2% speedometer3 React-Stockcharts-SVG/PanTheChart/total android-hw-a55-14-0-aarch64-shippable webrender 46.29 -> 47.32

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 all of these tests on try with ./mach try perf --alert 43534

The following documentation link provides more information about this command.

For more information on performance sheriffing please see our FAQ.

If you have any questions, please do not hesitate to reach out to fbilt@mozilla.com.

Flags: needinfo?(wmedina)

This regression is already fixed by the backout.

Flags: needinfo?(wmedina) → needinfo?(fbilt)

@mgaudet
In this revision was been backed out, you can close this as bug as fixed.

Flags: needinfo?(fbilt) → needinfo?(mgaudet)
Status: NEW → RESOLVED
Closed: 8 days ago
Flags: needinfo?(mgaudet)
Resolution: --- → FIXED

A comment containing a reason for why the performance regression was resolved as FIXED could not be found. It should provided when the status of the bug is changed.

:mgaudet, since you resolved this bug, could you provide a comment explaining the resolution? If one has already been provided, this needinfo can be ignored/removed.

If you need additional information/help, reach out in #perftest, or #perfsheriffs on Element.

For more information, please visit BugBot documentation.

Flags: needinfo?(mgaudet)

See comment #1 for reasoning.

Flags: needinfo?(mgaudet)
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