[Intel-gfx] Too many memory managers

Lukas Hejtmanek xhejtman at ics.muni.cz
Wed Aug 6 13:44:22 CEST 2008

On Mon, Aug 04, 2008 at 12:49:43AM -0700, Keith Packard wrote:
> I'm switching the 2D driver over so that it uses GEM objects for
> pixmaps. I've ripped exa apart and created 'uxa' which doesn't deal with
> pixmap allocation at all, and just focuses on acceleration. That's
> working fine, and now the intel driver can create GEM objects for every
> pixmap.

wouldn't the pixmap creation be too expensive compared to traditional

And another question related to your blog:
> fast writes and really slow reads, but no penalty for switching rapidly
> between GPU and CPU

is the read penalty still noticable if you read doublequadwords using sse 
and also explicitly prefetching data?

Lukáš Hejtmánek

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