1380593 - 5.23% Resident Memory (windows7-32) regression on push 86a96e12230de44c2fd3b249d8f2d2912435eca4 (Wed Jul 12 2017)

Status: RESOLVED WONTFIX

(Core :: Graphics, defect)

Description

[Ionuț Goldan [:igoldan]]

We have detected an awsy regression from push:

https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?changeset=86a96e12230de44c2fd3b249d8f2d2912435eca4

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

Regressions:

  5%  Resident Memory summary windows7-32 opt      310,060,444.58 -> 326,284,428.69


You can find links to graphs and comparison views for each of the above tests at: https://treeherder.mozilla.org/perf.html#/alerts?id=7883

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://developer.mozilla.org/en-US/docs/Mozilla/Performance/AWSY

Comment 1

[Ionuț Goldan [:igoldan]]

:lsalzman I see you are the owner of bug 1376026. Could you take a look over this regression and then estimate a fix time for it?

Comment 2

[Lee Salzman [:lsalzman]]

This is essentially the same as bug 1380630. So the resolution there applies to here. We accept that using DirectWrite is the source of this, and that the benefit of using DirectWrite for fonts outweights the slight increase in memory usage. This likewise only affects a portion of our Windows 7 users, but all of our other Windows release platforms were already using DirectWrite.

Comment 3

[Ionuț Goldan [:igoldan]]

:lsalzman Thank you!