[Bug 35579] Poor performance in Firefox 4

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Mar 23 09:14:40 PDT 2011


--- Comment #6 from Michel Dänzer <michel at daenzer.net> 2011-03-23 09:14:41 PDT ---
(In reply to comment #3)
> Xrender. Attaching sysprof from HWACCEL run

Indeed, this profile shows it hitting a software fallback for the XRender
Composite operation. If you can rebuild the driver with RADEON_TRACE_FALL
defined to 1 in src/radeon_exa_shared.h, the debugging messages enabled by that
might give an idea.

The other profiles show most of the CPU usage in the Firefox process, so they
may be separate problems elsewhere.

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