http://bugzilla.kernel.org/show_bug.cgi?id=15293
Luca Tettamanti <kronos...@gmail.com> changed:
What |Removed |Added
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CC| |kronos...@gmail.com
--- Comment #14 from Luca Tettamanti <kronos...@gmail.com> 2010-02-17 16:46:05
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(In reply to comment #11)
> 1. 26% cpu time goes for allocating bo to GTT for exaGetImage (in DFS). Real
> problem in allocation is cache flush when changing pages from WB to WC and
> purge_vmap_area_lazy in ttm. But as there is report from PCIE users I don't
> believe this is problem for them.
With a PCIe card exaGetImage barely registers on oprofile. I also see very few
calls to radeon_bo_create (if that's the function you're referring to).
> Here seems to be multiple performance bugs that flash is triggering to cause
> the effects which this bug report is about.
It also seems specific to vimeo... with a normal youtube video the flash player
is using up about 30% of the cpu and I see bit of activity (5%) in pixmap
(pixman_blt_sse2).
With the video from the OP memcpy (called by Xorg) is hogging the CPU (the same
behaviour shows in the profile attacched to this bug); however I'm unable to
get a call graph from oprofile... the relevant debugging symbols are installed,
do you have any suggestions?
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