888888 - Firefox memory regression on Win 8 (since June the 16th)

Status: RESOLVED INVALID

(Core :: General, defect)

Description

[Mihaela Velimiroviciu (:mihaelav)]

Based on bug #888196 comment #2:

+++ This bug was initially created as a clone of Bug #888196 +++

There is an increase of resident memory in endurance testruns on Windows 8 (both 32 and 64 bit) since June the 16th. From the reports it looks that the memory regression is across all tests.

Reports:
* Win8 32bit 14June: http://mozmill-ci.blargon7.com/#/endurance/report/f2d3b6136b11cb7b6708636cff35af1e
* Win8 32bit 16June: http://mozmill-ci.blargon7.com/#/endurance/report/f2d3b6136b11cb7b6708636cff66b0b7
* Win8 64bit 14June: http://mozmill-ci.blargon7.com/#/endurance/report/f2d3b6136b11cb7b6708636cff35c5a8
* Win8 64bit 16June: http://mozmill-ci.blargon7.com/#/endurance/report/f2d3b6136b11cb7b6708636cff66d20e

Charts: http://mozmill-ci.blargon7.com/#/endurance/charts?branch=24.0&platform=Windows%20NT&from=2013-06-09&to=2013-06-28

Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=b197bed90a98&tochange=36da3cb92193

I will work to narrow down the regression range

Comment 1

[Mihaela Velimiroviciu (:mihaelav)]

Reduced regression range with tinderbox builds:
* last good: 20130614100407, http://hg.mozilla.org/mozilla-central/rev/5ddb1bf96261
* first bad: 20130614184124, http://hg.mozilla.org/mozilla-central/rev/05d9196b27a1

Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5ddb1bf96261&tochange=05d9196b27a1

Comment 2

[u279076]

(In reply to Mihaela Velimiroviciu [QA] (:mihaelav) from comment #1)
> Pushlog:
> http://hg.mozilla.org/mozilla-central/
> pushloghtml?fromchange=5ddb1bf96261&tochange=05d9196b27a1

Can you please regress this further using mozilla-inbound?

Comment 3

[Andrei Eftimie]

I think we finally have a winner:

http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?changeset=d1fc221d10a0
Which is bug 879624

This looks consistent with what we saw. Only affects Windows 8, and being related to hardware acceleration might explain increased memory consumption.

Vladimir is it expected to have increased memory consumption on Windows 8 with your patch for bug 879624 applied?

We are running endurance tests. Here are some results from inbound builds:
Prior to your patch: http://mozmill-crowd.blargon7.com/#/endurance/report/5aa1ca5e7015e3740d269dc9477271d8
Your patch applied: http://mozmill-crowd.blargon7.com/#/endurance/report/5aa1ca5e7015e3740d269dc94757c7d6

Comment 4

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

Yup, definitely will cause a change.  If you expand out the Graphics section, you can see that where before we weren't using any hw accel (it was blocked), afterwards it gets used because vmware is using the RDP driver.  So, not a regression, and probably closer to what our "good" users (the ones that keep their drivers up to date) see.

Comment 5

[Dave Hunt [:davehunt] [he/him] ⌚BST]

Thanks Vladimir!