Closed Bug 1369682 Opened 2 years ago Closed 2 years ago
.17% damp (linux64) regression on push 12783b5a0fca4162a36a61b45f7b2a5bc2b452d1 (Thu Jun 1 2017)
Talos has detected a Firefox performance regression from push: https://hg.mozilla.org/integration/autoland/pushloghtml?changeset=12783b5a0fca4162a36a61b45f7b2a5bc2b452d1 As author of one of the patches included in that push, we need your help to address this regression. Regressions: 4% damp summary linux64 opt e10s 288.69 -> 300.73 You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=6995 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 Talos jobs in a pushlog format. To learn more about the regressing test(s), please see: https://wiki.mozilla.org/Buildbot/Talos/Tests For information on reproducing and debugging the regression, either on try or locally, see: https://wiki.mozilla.org/Buildbot/Talos/Running *** Please let us know your plans within 3 business days, or the offending patch(es) will be backed out! *** Our wiki page outlines the common responses and expectations: https://wiki.mozilla.org/Buildbot/Talos/RegressionBugsHandling
Component: Untriaged → Networking
Product: Firefox → Core
This regression minorly reproduces on windows10 platform. Tests there helped me narrow down the origin to two bugs: Bug 1015466 and Bug 1366932. Could you state and confirm which of these is more related to this issue?
The patch in bug 1366932 is quite simple, it just read a integer value from preference, and the default value is not changing the following behavior, so I think it's really not highly related to bug 1366932. If you need more information, just ni? me anytime. I'm glad to do more investigation.
Might be the same reason as bug 1369632, if damp also includes page loading time in the metric. keep ni before the root cause is confirmed.
Based on Bug 1338493 comment #22, this regression is resolved as we move the IPC message handler further off main thread.
Status: NEW → RESOLVED
Closed: 2 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1338493
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