periodic, short freezes

[Kris Kennaway]

On Sat, Nov 11, 2006 at 09:36:25AM +0100, Zbigniew Szalbot wrote:
> Hello,
> 
> On Sat, 11 Nov 2006, Kris Kennaway wrote:
> 
> >The fact that swap is in use, together with your description,
> >indicates that your system is overloaded; those transient loads are
> >causing it to periodically demand more working memory than is backed
> >by RAM, so the system goes into a frenzy of swapping trying to
> >accomodate, and system performance falls in the toilet until the load
> >goes away.
> >
> >Add more RAM or limit the workload.
> 
> Now that something to check - thank you very much Kris. Is that so that on 
> a typical system with enough memory to do its job there is no swap use on 
> average? From what I can tell swap is always used to some extent but I 
> have checked another system and swap use there is 0%. So you may be right 
> that this is the problem.

There should be no significant swap use, although there might be a
small amount (a few MB) in use.  Certainly it should not change over
time, because that indicates that the system needed to reshuffle
things.

Kris
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