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SubjectRe: Random file I/O regressions in 2.6
FromArjan van de Ven <>
DateTue, 04 May 2004 10:27:54 +0200

>
> That would cause the kernel to perform lots of pointless pagecache lookups
> when the file is already 100% cached.

well surely the read itself will do those AGAIN anyway, so in the fully
cached case this is just warming up the cpu cache ;) (and thus really
cheap as nett cost I suspect)

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