Poor compositing performance on 965Q chipset with intel 2.2.1 driver

[Hugo Mildenberger]

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.