Re: kswapd etc hogging machine

From: Rik van Riel (
Date: Thu Jan 03 2002 - 12:32:13 EST

On Thu, 3 Jan 2002, Stephan von Krawczynski wrote:
> On Thu, 3 Jan 2002 14:51:01 -0200 (BRST)
> Rik van Riel <> wrote:
> > On Thu, 3 Jan 2002, Alan Cox wrote:
> >
> > > 2.4.1x VM code is performing better under light loads but its
> > > absolutely and completely hopeless under a real paging load. 2.4.17-aa
> > > is somewhat better interestingly.
> >
> > A quick 'make -j bzImage' test I did yesterday got the system
> > to use near 70% of its CPU time in user mode and 30% in system
> > mode. This was with 2.4.17-rmap-10b, btw.
> And what kind of an argument is this? This is an honest question,
> really. If I do this make I end up around 80-90% in user mode and the
> rest in system on a standard 2.4.17 SMP box (configured with too less
> swap btw).

How much memory does that box have ?

In my case it was with 512 MB of RAM, the system went almost
900 MB into swap.

If your machine has one GB of RAM (or more), I expect the gccs
to fit mostly into RAM, which would give much better behaviour.



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