83852 - Some dhtml animations run slowly in mozilla

Status: VERIFIED DUPLICATE of bug 70156

(Core :: DOM: Core & HTML, defect)

Description

[h-dot]

load the url and click the "toggle image/text layers" button. 

compare the speed of the animation of the text vs images animation.

In IE 6 beta the image animation is pretty fast but uses 100% cpu, in  Opera 5
there is no speed differens between the text and the images animation, no cpu usage.

in mozilla build 2001060120 image animation performance is really bad and cpu
usage is 100%

I think mozilla, being "next generation, high performance layout engine", should
be at least as fast as Opera on this.

Comment 1

[Håkan Waara]

-> DOM Events (shrug)

Comment 2

[Håkan Waara]

Ack. -> DOM HTML per jst.

Comment 3

[R.K.Aa.]

Hmm. Current CVS Linux build doesn't show any difference in speed between text
and image animations, the movement back/forth/back/forth takes approx one sec.
CPU usage is very low - hardly shows up in a "top".
(P3/500, RH7.1, XFree86 4.0.3, nVidia driver)

Comment 4

[h-dot]

back/forth/back/forth in 1 sec is pretty slow, text layer moves back/forth 2
times maybe twice as fast for me.

The big difference is between opera and IE/Moz.

W2k (P3/600)

Comment 5

[h-dot]

I just tried this in netscape 6.01 on my w2k PIII/600.

and the performance is just as good as opera.

Comment 6

[Boris Zbarsky [:bzbarsky]]

Can anyone get a reduced testcase and/or profile this?

Seems related/similar to bug 76299 -- same animation method is used.

Comment 7

[R.K.Aa.]

Posted value was with a P3/500 and an old TnT based PCI1 card.

Comment 8

[Prashant Desale]

Updating QA contact to Shivakiran Tummala.

Comment 9

[Chase Tingley]

2001060708 GNU/Linux.

This actually looks fairly speedy for me, but I'm on a PIII/800 and have nothing
to compare it to.

Also, is it just me or is there a slight speedup when I jiggle the mouse?

bug 76299 was marked dupe of bug 70156.

Tempted to add blocks bug 21762 for tracking, but I'm not totally sure that this
is something new.

Comment 10

[Keyser Sose]

I would say this is a dupe of bug 70156 but thats just me.

Comment 11

[Keyser Sose]

*** This bug has been marked as a duplicate of 70156 ***

Comment 12

[Sivakiran Tummala]

verfied dup