[Intel-gfx] [PATCH] intel: Add support for (possibly) unsynchronized maps.
daniel at ffwll.ch
Sat Feb 25 03:00:07 PST 2012
On Fri, Feb 24, 2012 at 07:53:22PM -0800, Eric Anholt wrote:
> This improves the performance of Mesa's GL_MAP_UNSYNCHRONIZED_BIT path
> in GL_ARB_map_buffer_range. Improves Unigine Tropics performance at
> 1024x768 by 2.06236% +/- 0.50272% (n=11).
A few questions:
- iirc Ben's non-blocking stuff also worked for non-llc machines - I guess
you haven't looked into this because we don't have a non-llc platform
that runs ungine?
- in my pwrite experience, writing through cpu maps beats writing through
the gtt on llc machines. This has the added benefit that it reduces
pressure on the mappable gtt. Have you tried that, too?
Mail: daniel at ffwll.ch
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