441364 - Panning (canvas-view) not responsive while page loading

Status: RESOLVED WONTFIX

(Firefox for Android Graveyard :: Panning/Zooming, defect, P1)

Description

[Oleg Romashin (:romaxa)]

Steps:
Build latest fennec for ARM version 0.4 or download it from
http://people.mozilla.org/~dougt/fennec-0.4/fennec-0.4.en-US.linux-arm.tar.gz

Run fennec and open page www.fishki.net
After first page paint (canvas update) try to pan content and drag/scroll it.

EXPECTED OUTCOME:
Canvas view always responsive and ready to pan.

ACTUAL OUTCOME:
Page loading (images, long content), and canvas view almost not responsive.

Comment 1

[Oleg Romashin (:romaxa)]

I was playing with latest fennec 21f625bd9726 with news.google.com...
And after clicking on some random link I got next page:
http://www.businessweek.com/careers/managementiq/archives/2008/10/damaging_capito.html

After first visible update/paint I start to drag and scroll canvas content, but it was almost not possible or very very slow....

Probably this problem not reproducible on phone gprs connection, but it is very good visible on my home connection (~16Mb).

Can we do anything with canvas event loop? make it somehow higher priority, or move it in separate thread?

Comment 2

[Stuart Parmenter]

this is substantially better now, but will leave open for additional work

Comment 3

[Ben Combee (:bcombee)]

Can we close this now?  It's marked as blocking, but there's no description of additional work needed.

Comment 4

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

vote for not blocking1.0 - it's good enough to not block 1.0

I think we _should_ close this and open new bugs as needed

Comment 5

[Ben Combee (:bcombee)]

OK, talked with Stuart... we need to look at the knobs exposed through the GECKO_REFLOW environment variables and see how turning them affects interactivity with complicated pages.  We want to err on the side of slower flow, since the devices are slower and used don't want to be blocked.

Comment 6

[Stuart Parmenter]

this is pretty good now, but will leave open for 1.1 for some additional work

Comment 7

[Oleg Romashin (:romaxa)]

tested www.lemonde.fr with b2 fennec and N900.
We still have lot of short freezes on Fennec while loading page, Microb still works much more responsive and don't freeze at all on that page (even with flash content)

Comment 8

[BMO Automation]

Closing all opened bug in a graveyard component