Hi,
On Tue, Mar 21, 2000 at 11:47:28PM +0100, Jamie Lokier wrote:
>
> For video players, I think you can go a long way with mmap() and
> madvise(). (But I haven't tried it).
Yes. Raw IO has one big advantage, though: it doesn't require any
modification of page tables or vmas, and so it is a lot more efficient
(especially for threaded SMP applications, where mmap and madvise
result in a lot of inter-CPU interrupt traffic for tlb invalidations).
--Stephen
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