On Thursday 17 February 2005 22:34, Rune Petersen wrote:
On my system it works on my X800 with no lockups. For now I have only tested with glxgears and q3demo. So I won't be of much help fixing this apart from being a success-vector.
Are there any pattern in what systems works with VB?
I have an R300 ND (PCI ID 0x4E44), and it doesn't work (i.e. it locks up after some time).
Also an observation:
With VB mode running glxgears I can get an extra 100 fps by moving the window left. If I move it too much it goes back to the initial fps.
This doesn't happen with immediate mode.
are there a good reason for this?
14345 frames in 5.0 seconds = 2868.983 FPS 14357 frames in 5.0 seconds = 2871.259 FPS 14332 frames in 5.0 seconds = 2866.250 FPS 14324 frames in 5.0 seconds = 2864.621 FPS "move" 14837 frames in 5.0 seconds = 2967.306 FPS 14905 frames in 5.0 seconds = 2980.958 FPS 14913 frames in 5.0 seconds = 2982.533 FPS 14897 frames in 5.0 seconds = 2979.251 FPS
Huh, that's really weird :)
One possible cause (though this is really wild speculation) is that you're outputting debug messages somewhere, and moving the window reduces the volume of debug messages.
I would have thought it might be similar to cache lines in main memory - in some positions you end up dirtying fewer cache lines due to alignment.
Keith
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