Poor compositing performance on 965Q chipset with intel 2.2.1 driver

[Steven J Newbury]

On Fri, 2008-05-09 at 19:31 +0200, Hugo Mildenberger wrote:
> Am Freitag, 9. Mai 2008 18:48 schrieb Barry Scott:
> > >> mg at platonas:~ $ x11perf -shmput500
> > >> x11perf - X11 performance program, version 1.5
> > >> The X.Org Foundation server version 10400090 on :0.0
> > >> from platonas
> > >> Fri May  9 18:31:46 2008
> > >>
> > >> Sync time adjustment is 0.0309 msecs.
> > >>
> > >>    3200 reps @   1.6794 msec (   595.0/sec): ShmPutImage 500x500 square
> > >>    3200 reps @   1.6568 msec (   604.0/sec): ShmPutImage 500x500 square
> > >>    3200 reps @   1.7887 msec (   559.0/sec): ShmPutImage 500x500 square
> > >>    3200 reps @   1.6947 msec (   590.0/sec): ShmPutImage 500x500 square
> > >>    3200 reps @   1.6732 msec (   598.0/sec): ShmPutImage 500x500 square
> > >>   16000 trep @   1.6986 msec (   589.0/sec): ShmPutImage 500x500 square
> > >>
> > >> This is with GM965 and intel driver 2.2.1, but I haven't noticed poor
> > >> compositing performance.
> 
> Running "x11perf -shmput500", I get these similar numbers using 965G rev 02:
> 
> Sync time adjustment is 0.0326 msecs.
> 
>    3200 reps @   1.7145 msec (   583.0/sec): ShmPutImage 500x500 square
>    3200 reps @   1.7133 msec (   584.0/sec): ShmPutImage 500x500 square
>    3200 reps @   1.7132 msec (   584.0/sec): ShmPutImage 500x500 square
>    3200 reps @   1.7133 msec (   584.0/sec): ShmPutImage 500x500 square
>    3200 reps @   1.7134 msec (   584.0/sec): ShmPutImage 500x500 square
>   16000 trep @   1.7135 msec (   584.0/sec): ShmPutImage 500x500 square
> 
> 
> using current master branch of xf86-video-intel and libpciaccess.
> 
Just as another datapoint:

x11perf - X11 performance program, version 1.2
The X.Org Foundation server version 10599001 on :0.0
from infinity
Fri May  9 19:51:25 2008

Sync time adjustment is 0.0405 msecs.

  12000 reps @   0.5318 msec (  1880.0/sec): ShmPutImage 500x500 square
  12000 reps @   0.5333 msec (  1880.0/sec): ShmPutImage 500x500 square
  12000 reps @   0.5312 msec (  1880.0/sec): ShmPutImage 500x500 square
  12000 reps @   0.5301 msec (  1890.0/sec): ShmPutImage 500x500 square
  12000 reps @   0.5303 msec (  1890.0/sec): ShmPutImage 500x500 square
  60000 trep @   0.5313 msec (  1880.0/sec): ShmPutImage 500x500 square

Everything from master branches as today (20080509), GM965.  Linux
kernel from master branch yesterday with exception of the reversion of
the "nopage removal" since the mesa/drm module hasn't yet been updated.