On Tue, 2006-05-02 at 14:23 +0200, Lukas Hejtmanek wrote:
> On Tue, May 02, 2006 at 11:51:05AM +0100, Alan Hourihane wrote:
> > > The problem here is batchbuffers.
> > > 
> > > Due to rotation being able to shuffle memory around it wasn't possible to
> > > support batchbuffers in agp space as the 2D driver could rip up memory
> > > allocation upon a rotation event. 
> > > 
> > > So the 3D driver falls back to the cmdbuffer path from system memory 
> > > (rather
> > > than AGP memory) which can be guaranteed.
> > > 
> > > To support batchbuffers again we'll need the new memory manager.
> > 
> > to activate the batchbuffer path again for now though, you should be
> > able to do...
> > 
> > INTEL_BATCH=1 glxgears
> 
> Using this increases glxgears ftp a little (940FPS vs 860FPS), but no change 
> in
> ppracer. 
> 
> Looks like there is still some issue with it.

You might want to check that your MTRR's are set correctly.

Alan.



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