One thing I'd like to add, for those who might read your thread.
The glxgears GLX demo that draws three rotating gears is supposed
to be run with the gear window maximized, not minimized. The
results will jump amazingly when one minimizes the window
Code:
mingdao@james:~$ glxgears -info
GL_RENDERER = GeForce FX 5200/PCI/SSE/3DNOW!
GL_VERSION = 1.5.1 NVIDIA 61.11
GL_VENDOR = NVIDIA Corporation
<snip, snip>
11401 frames in 5.0 seconds = 2280.200 FPS
11408 frames in 5.0 seconds = 2281.600 FPS
11410 frames in 5.0 seconds = 2282.000 FPS
11404 frames in 5.0 seconds = 2280.800 FPS
10964 frames in 5.0 seconds = 2192.800 FPS
28988 frames in 5.0 seconds = 5797.600 FPS
33547 frames in 5.0 seconds = 6709.400 FPS
33547 frames in 5.0 seconds = 6709.400 FPS
33514 frames in 5.0 seconds = 6702.800 FPS
33555 frames in 5.0 seconds = 6711.000 FPS
33567 frames in 5.0 seconds = 6713.400 FPS
33558 frames in 5.0 seconds = 6711.600 FPS
and that's with Thunderbird, Firefox (10 tabs), XChat, Scribus,
and more stuff running than I care to mention.