Andre Landwehr wrote:
>
> On Thu, Mar 22, 2001 at 03:19:51PM -0500, Neil Gunton wrote:
> > And moreover, I could see it starting to use swap space, which
> > simply should not happen with the kind of minimal load the machine is
> > under.
>
> It's quite common (at least in Linux, don't know about other
> unices) to use swap space even if huge amounts of memory
> are unused yet. In most cases this will increase the overall
> performance of a system because memory pages that are not used
> very often will get swapped out immediately and not just-in-time
> for another process to allocate all the memory it needs.
How much though? On the many various Linux systems I have had access to,
I haven't seen a situation where there is 100mb of free memory, but 50mb
sitting in swap. Perhaps a couple of megs, but nothing of consequence.
I just checked a server with 512mb... nothing was free and 60mb of stuff
was sitting in swap. I don't think this is due to having lots of big
processes around, but at one point (yesterday) some memory intensive
apps were run, which probably pushed things to swap which weren't
unswapped.
--
Regards,
Wim Kerkhoff, Software Engineer
Merilus, Inc. -|- http://www.merilus.com
Email: [EMAIL PROTECTED]
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