Re: Linux 2.4.4-ac10

From: Mike Galbraith (mikeg@wen-online.de)
Date: Fri May 18 2001 - 15:24:05 EST


On Fri, 18 May 2001, Ingo Oeser wrote:

> On Fri, May 18, 2001 at 03:23:03PM -0300, Rik van Riel wrote:
> > On Fri, 18 May 2001, Ingo Oeser wrote:
> >
> > > Rik: Would you take patches for such a tradeoff sysctl?
> >
> > "such a tradeoff" ?
> >
> > While this sounds reasonable, I have to point out that
> > up to now nobody has described exactly WHAT tradeoff
> > they'd like to make tunable and why...
>
> Amount of pages reclaimed from swapout_mm() versus amount of
> pages reclaimed from caches.

I don't know if this'll make sense, but I think this has to
be a ~fuzzy suggestion to the kernel. There are so many
variables that you can't predict what the kernel will run
into. For example, with my favorite test, sometimes tasks
do something nasty, like all deciding to do the same things
at once and thereby jerking a _knot_ in the vm's tail.

        -Mike

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