Messages in this thread | | | Date | Wed, 15 Dec 1999 09:43:30 -0500 | From | Raul Miller <> | Subject | Re: Thread-private mappings and graphics (was Re: Per-Processor Data Page) |
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David S. Miller <davem@redhat.com> wrote: > Whereas most SGI, Sun, and other vendor's higher end cards allows you > to arbitrarily stop a renderer mid-place, save the card state, and > restore the card state another thread has. ... > Commodity PCI/AGI 3D graphics cards cannot do this, which is why the > userland locking solution exists at all. However for cards that can do > the above, this is what people want.
What do benchmarks look like -- comparing "swapping card state" vs. "keep opengl state off-board and card actions atomic"?
Or is that too much trouble to be worth benchmarking?
[My guess is that when both are available it's a mixed bag -- in some cases one wins, in other cases the other wins.]
Thanks,
-- Raul
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