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SubjectRe: Ability to limit or disable page caching?


On Mon, 5 May 2008 00:12:56 -0700
"Kevin Burton" <> wrote:

> In the mean time is it possible to disable the page cache or limit it
> to say 10% of system memory?

You might want to look at /proc/sys/vm/ for tunables.
/proc/sys/vm/vfs_cache_pressure and /proc/sys/vm/swappiness are probably
what you are looking for.
See this article for an explanation of swappiness :

> You could do this with RHEL 4.x but I don't recall this ever making it
> into 2.6 :-/

AFAIK RHEL 4.x runs 2.6.9.



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