On 28/07/2009, Michel Dänzer <daen...@debian.org> wrote:
> On Tue, 2009-07-28 at 00:16 +0200, Michal Suchanek wrote:
>  > On 27/07/2009, Michel Dänzer <daen...@debian.org> wrote:
>  > > On Mon, 2009-07-27 at 21:14 +0200, Michal Suchanek wrote:
>  > >  > 2009/7/27 Michel Dänzer <daen...@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.

It's no wonder it is slow. Even rendering by a Celeron CPU is at times
faster than what my GPU shows.

>
>
>
>  > >  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.
>

It might be another unrelated DRI problem because in
xscreeensaver-demo the CPU is almost unused and the animation is still
slow. It's actually quite interesting, though. Turning on the fps
display makes the system time go almost 100% even in the demo.

I wonder how I could find where the time is spent. If it is system
time it is spent in kernel, right?

Thanks

Michal



--
To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org

Reply via email to