[Xorg] really slow X performance with Radeon 7200
orders at nodivisions.com
Tue May 25 00:41:17 PDT 2004
Jaymz Julian wrote:
>>>>To recap, I'm currently running 1280x1024 @ 24bit color, and getting this:
>>>>[~]$ x11perf -shmput500 -repeat 2
>>>>800 reps @ 8.1029 msec ( 123.0/sec): ShmPutImage 500x500 square
>>>>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
>>> -- 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.
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