Gigabit lan DMA versus main memory - latency yes bandwidth is ceasing to be
an issue
> >So I put it in a mitshm object, it arrives with 0 copies, its blasted into
> >the video card. Next question 8)
>
> Umm... You still have to copy the data from the application, into the
> shared memory and then out from the shared memory into the video card.
> This sucks three times the system memory bandwidth of going out of the
> application memory directly to the video card. Am I missing something?
Existing hardware on all Linux supported platforms barring SGI. Nobody
else has hardware video contexts. So the PC case is always going to be
2 (not 3) times as bad - I can compute in my mitshm object thanks
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