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SubjectRe: Swap
   From: Rik van Riel <>
Date: Tue, 20 Nov 2001 21:35:40 -0200 (BRST)

On Tue, 20 Nov 2001, David S. Miller wrote:
> TLB misses add to the cost, and this overhead is more than
> "noise".

Well, this could have something to do with the fact
that our page fault handler only maps in _1_ page at
a time, so we're trapping into the pagefault handler
every 4kB...

The Apache folks were keeping it mapped across requests,
so even if it was "primed" (ie. pre-faulted), a read() into
a static buffer was still significantly faster.
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