1381808 - 723.97 - 1356.53% tp5n nonmain_startup_fileio (windows7-32) regression on push 42ad059f07ba5057d4dc1b0fe00d96a0ece73bde (Mon Jul 17 2017)

Status: RESOLVED DUPLICATE of bug 1375848

(Core :: Preferences: Backend, defect)

Description

[Ionuț Goldan [:igoldan]]

Talos has detected a Firefox performance regression from push:

https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?changeset=42ad059f07ba5057d4dc1b0fe00d96a0ece73bde

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

Regressions:

1357%  tp5n nonmain_startup_fileio windows7-32 opt e10s     4,586.42 -> 66,802.58
724%  tp5n nonmain_startup_fileio windows7-32 pgo e10s     8,473.96 -> 69,822.67


You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=8030

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

Comment 1

[Ionuț Goldan [:igoldan]]

:bsmedberg I see you are the owner of bug 981818. Can you please review your changes, in looks for a performance fix on regressions above?

Comment 2

[Benjamin Smedberg]

What was the point of filing a new bug?