Messages in this thread |  | | | Subject | Re: Random file I/O regressions in 2.6 | | From | Arjan van de Ven <> | | Date | Tue, 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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