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SubjectRe: Swap
On Tue, 20 Nov 2001, David S. Miller wrote:
> 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".

> 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.

Interesting. I wonder how read() and mmap() compare when the
data is in highmem pages and we're facing a kmap()/kunmap()
for read() ...


Shortwave goes a long way: #swl

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