593816 - [ATI] Slower D2D performance with the latest 32bit Minefield 4.0b6pre

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[JK]

User-Agent:       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b4) Gecko/20100818 Firefox/4.0b4
Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b6pre) Gecko/20100906 Firefox/4.0b6pre

The latest 32bit Minefield 4.0b6pre has slower D2D performance (less revolutions/min) than FF 4.0b4 and the latest 64bit Minefield in Microsoft's "Psychedelic Browsing" test. I tested 5 times with each browser. Screen size 1280x1023 (full screen mode).

I suppose there's some sort of glitch in the 32bit MF.

32 bit Minefield
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b6pre) Gecko/20100906 Firefox/4.0b6pre

1357, 494
1352, 471
1357, 474
1347, 464
1347, 471

Firefox 4 beta 4
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b4) Gecko/20100818 Firefox/4.0b4

1769, 599
1774, 599
1769, 596
1774, 599
1769, 593

64bit Minefield
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:2.0b6pre) Gecko/20100901 Firefox/4.0b6pre

1774, 593
1774, 599
1769, 599
1774, 599
1774, 596

Reproducible: Always

Steps to Reproduce:
1. Open the test URL
2. Run both of the tests - the first one and the "hallucinogenic" test

Comment 1

[JK]

Attachment: GPU-Z screenshot

Comment 2

[Jim Jeffery not reading bug-mail 1/2/11]

Likely a dup of: https://bugzilla.mozilla.org/show_bug.cgi?id=593361

In about:config try turning off: layers.accelerate-all restart browser and re-test. If you get better numbers, then its likely this will be fixed by:
https://bugzilla.mozilla.org/show_bug.cgi?id=593268

From what I understand.

Comment 3

[JK]

Tried also the potato gun thing:

fps/score/seconds

MF 32: 44 / 5399 / 15,1
MF 32: 60 / 11105 / 20,9 (layers.accelerate-all off)
MF 64: 60 / 11110 / 20,9
FF4b4: 60 / 11107 / 20,9
FF4b4: 17 / 1247 / 8,0 (non-D2D)

I got 1774/599 from the psychedelic test with MF 32bit layers.accelerate-all off, so changing the setting solved the problem.

Comment 4

[Scoobidiver (away)]

JK,
Is it OK now?

Comment 5

[(mostly gone) XtC4UaLL [:xtc4uall]]

Resolve as WFM?