[Intel-gfx] Mesa drm-gem performance regression on 915/945

Keith Packard keithp at keithp.com
Tue Aug 5 20:12:55 CEST 2008


On Tue, 2008-08-05 at 19:56 +0200, Lukas Hejtmanek wrote:
> On Tue, Aug 05, 2008 at 10:52:57AM -0700, Keith Packard wrote:
> > > I recently pushed a change to default to using vblank sync'd buffer swaps.  
> > > That could be the problem if that code broke recently...
> > 
> > gears is at 180FPS, open arena is at 2fps. Seems unlikely, but I guess
> > it's possible
> 
> does sysprof show anything?

Yeah, the CPU is idle, except for the modest T&L execution. intel_idle
shows hat the GPU is completely busy. I don't have time this week to
chase this down further, I'm afraid.

-- 
keith.packard at intel.com
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