802031 - OMTC slow down page scrolling

Status: RESOLVED WORKSFORME

(Core :: Graphics: Layers, defect)

Description

[Adrien CLERC]

Attachment: GLXInfo on a PC for which FF Nightly w/ OMTC is slower than stable 16.0.1

User Agent: Mozilla/5.0 (X11; Linux i686; rv:16.0) Gecko/20100101 Firefox/16.0
Build ID: 2012101000

Steps to reproduce:

Use Nightly with OMTC enabled.
I go to a long page (http://en.wikipedia.org/wiki/Paris), and try to scroll with mouse, or with drag'n'drop on the scrollbar.


Actual results:

Scrolling is really slow, either with the mouse wheel or the scrollbar.


Expected results:

It should have been smooth, as in FF 16.0.1

Comment 1

[FM33]

Same issue for me :
Firefox 19.0a1
Mozilla/5.0 (X11; Linux x86_64; rv:19.0) Gecko/19.0 Firefox/19.0
The slowness is from low to high depending of the page.

Comment 2

[FM33]

Attachment: glxinfo for foxxm

Comment 3

[Chris Peterson [:cpeterson]]

Mass tracking-e10s flag change. Filter bugmail on "2be0fcce-e36a-4e2c-aa80-0e3d33eb5406".

Comment 4

[Wayne Mery (:wsmwk)]

WFM using current nightly.
Can you still reproduce when using a current version?

Comment 5

[Adrien CLERC]

Except the fact that the previous setting to enable OMTC is not there anymore (layers.offmainthreadcomposition.enabled), I cannot reproduce this anymore in Nightly.
If you have any information about how to enable/disable OMTC. I'll be glad to recheck one last time.

Comment 6

[Wayne Mery (:wsmwk)]

ISTM we just close this WFM