The NVIDIA proprietary driver uses basically 0% of the CPU, yet the open source
nv driver on the same hardware configuration isn't able to play 1080i HDTV
source video on my dual Opteron at full frame rate.
That's assumingly because the binary driver uploads the video data using DMA
while the open source driver does a plain memcpy().
Besides, it might as well be that the binary driver does all that in the kernel
and hence doesn't appear to be using any CPU time in top.
This is not a bug.
yeah, we don't have anything from nVidia that would enable us to provide proper