[Mesa-dev] Status update of XvMC on R600

Alex Deucher alexdeucher at gmail.com
Thu Nov 11 07:25:35 PST 2010

2010/11/11 Christian König <deathsimple at vodafone.de>:
> Am Mittwoch, den 10.11.2010, 15:30 -0500 schrieb Younes Manton:
>> In the meantime, I suggest you check if your vertex buffers are in
>> sytem memory (preferably at least WC-ed if not cached); I don't recall
>> spending that much time in gen_block_verts in Nouveau.
> Looks like your suspicions about the vertex buffer not being in system
> memory were right. Even if I move every single calculation from
> gen_block_verts into the vertex shader the cpu time spend in this
> function doesn't goes below ~35%.
> I also doesn't understand why it's only gen_block_verts and not
> gen_macroblock_verts. Probably because most blocks are only intra
> blocks, but we will see if this changes when I manage to implement
> proper buffer usage modes into r600g.

FWIW, Keithw committed a bunch of r600g usage fixes last week.


> Christian.
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