1865 - [PP] Animated Backgrounds are 2X slower on Mac OS then other platforms

Status: VERIFIED DUPLICATE of bug 3958

(Core :: Graphics: ImageLib, defect, P2)

Description

[webmaster]

Take a look at http://home.dipswitch.com.
Notice the animated background.
The latest version of mozilla refreshes animated GIF backgrounds every second.

Comment 1

[Peter Trudelle]

batch-reassigning all Garrett Blythe bugs to Don Melton

Comment 2

[don]

Re-assinged to [e-mail].

Pam, do you have any idea who should get this bug?  Someone in layout maybe?

Comment 3

[pnunn]

In an attempt to reproduce the problem I generated:
http://jazz/users/pnunn/publish/anibkgif.html
to replace
http://www.dipswitch.com

Comment 4

[pnunn]

My test page does show the problem. Interestingly enough, an
animated gif in table bkground works, but a page bkground does not.
-pn

Comment 5

[pnunn]

The bkground image animation does work sometimes. So its an intermittant bug.
(pn: note to self:?timer/layout related problem?)

Comment 6

[leger]

beppe...can you put in a QA Contact please to check this with latest build?
Thanks!

Comment 7

[pnunn]

Just check this on linux 02-23-99 build and it all animates
but very very very slowly. very.
fyi,
-pn

Comment 8

[rubydoo123]

assigning Eli as QA assigned

Comment 9

[leger]

Bulk moving Mozilla/ImageLig bugs to NGLayout/Image in preparation for a move to
Browser/ImageLib.

Comment 10

[Eli Goldberg]

On Mac OS (4.26.99 build), Seamonkey performs the animation on Jazz at
approximately half the speed of Communicator 4.5 on the same system (about 5.5
seconds per iteration on Seamonkey, versus about 2 seconds on 4.5).

(The speed is equivalent to Communicator 4.5 on Win32 & Linux. Also, on Linux,
there's a 6th column of animated moons that appears to the right of the table,
flickering on and off. If it's still present when this is actually fixed, I'll go
ahead and break it into a separate bug. Thanks!)

Comment 11

[pnunn]

changing milestone.
-pn

Comment 12

[pnunn]

I don't see this problem. marking worksforme.
ps. it looks like the extra "moon" column is fixed too.
-pn

Comment 13

[Eli Goldberg]

Re-opening; the application behavior is unchanged from the 4.26.99 comment that I
tossed in.

To reproduce, take a Macintosh, go to the test page (I'm using a full 1024x768,
window, 16-bit video), and compare the animation speed in Gecko vs. Communicator;
it's about 4 seconds per cycle on Communicator, but about 8-10 seconds per cycle
on Gecko.

Comment 14

[Eli Goldberg]

(And, yes, I'm still seeing the flashing moon on Linux, too, although only for
the first few cycles; let me know if you'd like me to show it to you.)

Comment 15

[Eli Goldberg]

I've now broken down the moon issue from 4.26.99 comment into bug #6302.

(strangely enough, I'm listening to "Over the Moon" from Rent while typing the
above... ;)

Comment 16

[pnunn]

I'm pushing this bug out. crashers get priority over
performance.
-pn

Comment 17

[pnunn]

?Could this be because NU_Cache is not enabled for mac?
-pn

Comment 18

[pnunn]

I'm marking this one as a dupe of #3958.\
-pnunn

*** This bug has been marked as a duplicate of 3958 ***

Comment 19

[Eli Goldberg]

Verifying as duplicate, with a note in 3958 to double-check that the bug
described in this report is also fixed upon verification of 3958.