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DateTue, 08 Oct 2002 02:15:31 -0700
FromAndrew Morton <>
SubjectRe: experiences with 2.5.40 on a busy usenet news server
Miquel van Smoorenburg wrote:
> 
> ...
> # free
>              total       used       free     shared    buffers     cached
> Mem:       1033308    1027316       5992          0     836884      29776
> -/+ buffers/cache:     160656     872652
> Swap:       976888     364032     612856

Please always send /proc/meminfo - it's way more informative.

A vmstat trace is also useful.

> No need to swap 364 MB when there's 872 MB still free...
> This makes the machine dogslow. An 'expire' process that
> runs every night normally takes 15 minutes to finish now
> has been running for 10 hours and its still not finished.

It must be doing a ton of IO?

You'll probably find that 2.5.41-mm1 does not swap at all; but
I'd need to see meminfo to know.
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