Re: sendfile(2) idea (was: Thread implementations)

Linus Torvalds (torvalds@transmeta.com)
Sun, 28 Jun 1998 09:57:30 -0700 (PDT)

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On Sun, 28 Jun 1998, Oliver Xymoron wrote:
>
> Is it possible to optimize the "mmap()+write()" combination instead and
> avoid adding a new scheme?

No. Think TLB and page table overhead. Think TLB coherency in SMP. Think
virtual caches.

mmap() _really_ really isn't the solution to zero-copy.

Linus

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