753028 - Extremely slow painting on http://lrvick.net/blog/arch_linux_terminals_in_android/ in portrait mode

Status: RESOLVED DUPLICATE of bug 757039

(Firefox for Android Graveyard :: General, defect)

Description

[(no longer active)]

http://lrvick.net/blog/arch_linux_terminals_in_android/

The paint seems to never be finished.

Comment 1

[Jeff Muizelaar [:jrmuizel]]

Not sure exactly what's happening here but it seems were at least partially slowed by box-shadow

Comment 2

[Naoki Hirata :nhirata (please use needinfo instead of cc)]

I believe that this is a duplicate of bug 753003.  This seems to be the aurora behavior of the checkerboarding (low res image)

Comment 4

[Jeff Muizelaar [:jrmuizel]]

This bug is specifically about paint performance on that page. I believe the other bug is about something else.

Comment 5

[JP Rosevear [:jpr]]

The title was "never finish" the paints, do they actually finish?

Comment 6

[(no longer active)]

Not according to my testing.

Comment 7

[JP Rosevear [:jpr]]

(In reply to Ehsan Akhgari [:ehsan] from comment #6)
> Not according to my testing.

Ok, why is this not a dupe of 753003 then?

Comment 8

[(no longer active)]

(In reply to JP Rosevear [:jpr] from comment #7)
> (In reply to Ehsan Akhgari [:ehsan] from comment #6)
> > Not according to my testing.
> 
> Ok, why is this not a dupe of 753003 then?

Because that bug covers more than just slow painting.  When panning this site, it seems like sometimes we get the wrong offset for the painted sections, which causes them to move incorrectly as a result of panning.

Comment 9

[Mark Finkle (:mfinkle) (use needinfo?)]

Let's see if this is fixed on nightly. If not, we can address.

Comment 10

[Naoki Hirata :nhirata (please use needinfo instead of cc)]

OK.  It's not fixed on the nightly in portrait mode.  landscape mode will load correctly.  It's still slow to paint in portrait.

Tested Samsung Galaxy S II 5/10/2012 Multi locale

Comment 11

[Naoki Hirata :nhirata (please use needinfo instead of cc)]

martijn, could you break down this page some to figure out what's causing the issue in portrait mode?  [note it doesn't have to be martijn to do this...qawanted to break down web page]

Comment 14

[Martijn Wargers (dead)]

Attachment: testcase

Comment 15

[Martijn Wargers (dead)]

The testcase seems large, but I had to add a lot of strings in a comment node, otherwise, it wouldn't reproduce this bug.

Comment 16

[JP Rosevear [:jpr]]

Dupe of existing bug Vlad?

Comment 17

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

This seems to work fine for me on a Galaxy Nexus with a build with the patch from bug 753742 applied (that fixes overflow:hidden).

Comment 18

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

This bug is getting messy; the testcase and rendering issues are fixed, the remaining slowness seems to be due to box-shadow, which is bug 757039.  Bouncing to jeff to close when he closes that bug.