Closed Bug 1595003 Opened 4 years ago Closed 4 years ago

0.58 - 0.88% Base Content JS (linux64|-qr|-shippable|-shippable-qr, macosx1014-64-shippable, windows10-64|-qr|-shippable|-shippable-qr, windows7-32|-shippable) regression on push 8fcd8060719eaa0db75037e2f0c21e29f3768965 (Fri November 1 2019)

Categories

(Core :: JavaScript: GC, defect, P3)

defect

Tracking

()

RESOLVED WONTFIX
mozilla72

People

(Reporter: alexandrui, Unassigned)

References

(Regression)

Details

(Keywords: perf, perf-alert, regression)

We have detected an awsy regression from push:

https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=8fcd8060719eaa0db75037e2f0c21e29f3768965

As author of one of the patches included in that push, we need your help to address this regression.

Regressions:

1% Base Content JS linux64 opt 3,926,362.67 -> 3,960,886.67
1% Base Content JS linux64-qr opt 3,926,357.33 -> 3,961,005.33
1% Base Content JS linux64-shippable opt 3,926,381.33 -> 3,960,890.67
1% Base Content JS linux64-shippable-qr opt 3,926,460.00 -> 3,961,008.00
1% Base Content JS macosx1014-64-shippable opt 3,927,456.00 -> 3,961,862.67
1% Base Content JS windows10-64-shippable-qr opt 3,985,305.33 -> 4,019,817.33
1% Base Content JS windows10-64-shippable opt 3,985,266.67 -> 4,019,737.33
1% Base Content JS windows10-64 opt 3,985,369.33 -> 4,018,748.00
1% Base Content JS windows10-64-qr opt 3,985,320.00 -> 4,018,676.00
1% Base Content JS windows10-64-shippable-qr opt 3,988,862.00 -> 4,019,681.33
1% Base Content JS windows7-32-shippable opt 3,088,325.33 -> 3,106,436.00
1% Base Content JS windows7-32 opt 3,088,665.33 -> 3,106,606.67

You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=23726

On the page above you can see an alert for each affected platform as well as a link to a graph showing the history of scores for this test. There is also a link to a treeherder page showing the jobs in a pushlog format.

To learn more about the regressing test(s), please see: https://wiki.mozilla.org/AWSY/Tests

Flags: needinfo?(sphink)
Component: Performance → JavaScript: GC
Product: Testing → Core
Version: Version 3 → unspecified

I did not expect to still see this regression. I will look into it to see if the mechanism is working correctly. But if it is, then at this point I think we'll want to take this regression.

This is a small regression and one we've spent considerable time trying (unsuccessfully) to mitigate. At this point I think we should just take this regression.

Status: NEW → RESOLVED
Closed: 4 years ago
Flags: needinfo?(sphink)
Priority: -- → P3
Resolution: --- → WONTFIX
Has Regression Range: --- → yes
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