[Bug 35579] Poor performance in Firefox 4

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Mar 24 01:20:38 PDT 2011


--- Comment #13 from Konstantin Svist <fry.kun at gmail.com> 2011-03-24 01:20:38 PDT ---
(In reply to comment #12)
> The latter shows a source picture being higher than the maximum supported by
> your GPU (4096).

So if I understand this correctly, Firefox asks the hardware to render an image
way off screen? How come there isn't some fast rejection in place to clip the
part that won't be visible on screen anyway?

>  Though I suspect that even if this gets fixed in Firefox or
> the test, there might be more issues down the road.

Are you saying that this is a bug in Firefox? Because they claim it's a buggy
XRender implementation...

> P.S. This test also runs very slowly (about 1 FPS) here on a Mac Pro running
> Mac OS X...

So since other lemmings are jumping off a cliff.. :)
I think that if Chromium is able to run this demo at 10FPS in userland software
renderer, there must be some things that can be done to speed this up with
hardware access...

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