Closed
Bug 1459129
Opened 6 years ago
Closed 5 years ago
17.56% Images (windows10-64-nightly) regression on push 064c3804de2e967753bcba437523892da918f67a (Fri Apr 27 2018)
Categories
(Testing :: AWSY, defect)
Tracking
(Not tracked)
RESOLVED
INCOMPLETE
People
(Reporter: igoldan, Unassigned)
References
Details
(Keywords: perf, perf-alert, regression)
We have detected an awsy regression from push: https://hg.mozilla.org/releases/mozilla-beta/pushloghtml?changeset=064c3804de2e967753bcba437523892da918f67a As author of one of the patches included in that push, we need your help to address this regression. Regressions: 18% Images windows10-64-nightly opt stylo 6,961,605.60 -> 8,183,950.50 You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=13037 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
Reporter | ||
Comment 1•6 years ago
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This is a big regression. It appeared on integration branches in 2 steps -- Mar 20 & Apr 5, but Perfherder didn't catch them, because of the noise in tests. Looking closer on mozilla-beta, this regression seems to happen also on the other platforms. I already retrigger/bacfilled data points around the 2 dates I mentioned.
Reporter | ||
Comment 2•6 years ago
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RyanVM: Can you take a look over this beta bug and maybe pull in the relevant regression authors?
Flags: needinfo?(ryanvm)
Comment 3•6 years ago
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(In reply to IonuΘ Goldan [:igoldan], Performance Sheriffing from comment #1) > I already retrigger/bacfilled data points around the 2 dates I mentioned. What were the results of this? That would be a lot easier to look over than a giant merge pushlog range.
Reporter | ||
Comment 4•6 years ago
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(In reply to Ryan VanderMeulen [:RyanVM] from comment #3) > (In reply to IonuΘ Goldan [:igoldan], Performance Sheriffing from comment #1) > > I already retrigger/bacfilled data points around the 2 dates I mentioned. > > What were the results of this? That would be a lot easier to look over than > a giant merge pushlog range. I'm afraid it's pretty hard to tell, even after the 2nd round of retriggers on mozilla-inbound. Still, with the new results, it's starting to look like both regressions originated from autoland.
Flags: needinfo?(igoldan)
Comment 5•6 years ago
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Can you at least provide a rough range for around the time those regressions happened? I'm guessing it's going to be something imagelib-related.
Flags: needinfo?(igoldan)
Reporter | ||
Comment 6•6 years ago
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The first regression that happened around March 20: https://treeherder.mozilla.org/perf.html#/graphs?timerange=7776000&series=mozilla-beta,1667474,0,4&series=mozilla-inbound,1645873,1,4&series=autoland,1655738,1,4&highlightedRevisions=f76b3a9e3005&zoom=1520819102970.9944,1522254555761.0498,6126404.494382023,9514044.943820225 The second regression that happened around April 5: https://treeherder.mozilla.org/perf.html#/graphs?timerange=7776000&series=mozilla-beta,1667474,0,4&series=mozilla-inbound,1645873,1,4&series=autoland,1655738,1,4&highlightedRevisions=9e8eeee62ffb&highlightedRevisions=f76b3a9e3005&zoom=1522008172073.2043,1523818556562.1548,6750000,9800561.797752809 The highlighted data points are just for easy spotting the approximate moment when the regression got in.
Flags: needinfo?(igoldan)
Comment 7•6 years ago
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Those points on Beta don't tell us anything as they're from Fx60. The initial regression range in #c0 was for the first Fx61 to Beta merge. But I guess that means we didn't see any corresponding regressions on Nightly 61 that might explain this?
Flags: needinfo?(igoldan)
Reporter | ||
Comment 8•6 years ago
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(In reply to Ryan VanderMeulen [:RyanVM] from comment #7) > Those points on Beta don't tell us anything as they're from Fx60. The > initial regression range in #c0 was for the first Fx61 to Beta merge. But I > guess that means we didn't see any corresponding regressions on Nightly 61 > that might explain this? That's right, we didn't see those corresponding regressions on Nightly.
Flags: needinfo?(igoldan)
Reporter | ||
Comment 9•6 years ago
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A narrower range for April 5 would be: 1fb1569b61d2 - 65e0fefdab51 As for March 20, the range would be: 5ed5a088c782 - ea23c2dda34a These are both from autoland: https://treeherder.mozilla.org/perf.html#/graphs?timerange=7776000&series=mozilla-beta,1667474,1,4&series=autoland,1655738,1,4&highlightedRevisions=5ed5a088c782&highlightedRevisions=ea23c2dda34a
Comment 10•6 years ago
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If you saw a jump on Autoland and Beta at basically the same time, wouldn't that suggest an external change?
Reporter | ||
Updated•6 years ago
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Component: Untriaged → AWSY
Product: Firefox → Testing
Updated•5 years ago
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Keywords: perf-alert
Comment 13•5 years ago
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There is no data available anymore for this regression.
Closing this as we can't test/reproduce anymore
Status: NEW → RESOLVED
Closed: 5 years ago
Resolution: --- → INCOMPLETE
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Description
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