Re: kswapd excessive CPU time

From: Marcelo Tosatti
Date: Wed Jun 09 2004 - 13:09:22 EST


On Tue, Jun 08, 2004 at 10:41:32AM -0500, Chris Johns wrote:
> On a 2.4.21 kernel (kernel.org + KDB patch + MITRE security patches),
> I've seen bizarre (I think) behavior from kswapd.
>
> My question boils down to this: given the (simple) scenario below,
> am I missing critical VM/kswapd patches, or is this behavior
> expected and OK, or is it wrong and possibly fixed in the 2.6 kernel?
> Or is the kswapd behavior somehow tunable to avoid the apparent
> thrashing that I saw?

Recent 2.4 VM should fix this, but you better of use 2.6.
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