[Xorg] really slow X performance with Radeon 7200

[Anthony DiSante]

Jaymz Julian wrote:
>>>>To recap, I'm currently running 1280x1024 @ 24bit color, and getting this:
>>>>
>>>>[0116][~]$ x11perf -shmput500 -repeat 2
>>>>800 reps @   8.1029 msec (   123.0/sec): ShmPutImage 500x500 square
>>>>
>>>>[0116][~]$ glxgears
>>>>5492 frames in 5.0 seconds = 1098.400 FPS
>>>
>>>
>>>It should eb pointed out at this juncture that there are three types
>>>of lies: Lies, Damned Lies, and Benchmarks (I forget whom I stole that
>>>from).
>>>
>>>	-- jaymz
>>
>>Without the supporting details, some of these benchmarks certainly aren't 
>>worth any more than lies...
> 
> My point is, the question "is my desktyop responsive" is far more important 
> than "how fast can I blit",. and that the two questions are usually not even
> vaugely related (no, they're not. 

Actually, the proper question is "can I run the applications I'd like to." 
It would be preposterous to claim FPS and blit rate are "usually not even 
vaguely related" to whether a person can run a graphics-intensive 
application satisfactorily.  (But since your initial question was different, 
perhaps you weren't claiming that.)

I have several 3D screensavers (mostly from rss-glx), some of which run 
smoothly, but some of which are jerky.  I also have problems with jerkyness 
and CPU utilization in xawtv/tvtime, and according to the author of tvtime, 
my throughput to X is less than half of what it should be.

I'd say there's a strong correlation between my performance problems and my 
throughput to X / FPS / blit rate, and I suspect that if I can get those 
specs into their proper ranges, there's a good chance my performance 
problems will be fixed.

-Anthony
http://nodivisions.com/