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SubjectRe: [2.1.130-3] Page cache DEFINATELY too persistant... feature?

On Wed, 25 Nov 1998, Benjamin Redelings I wrote:

> Under certain circumstances, 2.1.130-3 simply doesn't shrink the page
> cache, and I get situations like this:
>
> telomere:~> cat freesample
> total used free shared buffers
> cached
> Mem: 63472 61812 1660 6972 25664
> 22968
> -/+ buffers/cache: 13180 50292
> Swap: 34236 24612 9624

In some situations this is a good readout. If the O/S is doing its job,
then that 24Mb in swap is disused code and data pages that are rarely
accessed, if at all. As a bonus, that 24Mb can now be used for cache and
buffers to reduce disk accesses and really make the system fly.

I agree a "free" report like the above can be alarming. However, the
important things you need to compare with previous releases are
a) How snappy interactive performance felt
b) How quickly the "background" task of updating your Debian system
completed

Cheers
Chris


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