Bug#538810: video-radeon: direct rendering: graphics deceleration?
On Tue, 2009-07-28 at 00:16 +0200, Michal Suchanek wrote:
> On 27/07/2009, Michel Dänzer <daenzer@debian.org> wrote:
> > On Mon, 2009-07-27 at 21:14 +0200, Michal Suchanek wrote:
> > > 2009/7/27 Michel Dänzer <daenzer@debian.org>:
> > >
> > > >
> > > > Please provide the full output of
> > > >
> > > > LIBGL_DEBUG=verbose glxinfo 2>&1
> > > >
> > > > for both cases.
> > > >
> > > > For now assuming it's a 3D driver issue, reassigning.
> > > >
> > >
> > > Attaching output of glxinfo.
> >
> >
> > Thanks. I don't see anything wrong. How do the framerate and CPU usage
> > compare when running
> >
> > /usr/lib/xscreensaver/hypertorus -delay 0 -fps
> >
> > ?
>
> With DRI fps is pretty much constant around 8.0
Hmm, that's pretty low, I'm getting around 40 fps on an RV350.
> > BTW, you can force the swrast driver by setting the environment variable
> > LIBGL_ALWAYS_SOFTWARE=1 even when the DRI is enabled.
> >
>
> With this option fps ranges from 7.5 to 12 depending on object view angle.
>
> These are values in fullscreen and no delay. Both cause 100% system
> load but the DRI one causes system load and the software one causes
> user load.
It might be interesting to find out where the CPU time is spent with
hardware acceleration.
--
Earthling Michel Dänzer | http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer
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