Memory, swap, and limits
Mikkel L. Ellertson
mikkel at infinity-ltd.com
Wed Jun 18 16:06:33 UTC 2008
Beartooth Sciurivore wrote:
>
> OK; but then there's something else I don't know, or don't
> understand. Does a Fedora machine do any swapping while it has memory
> left? I didn't think I had (or needed) any control at all over swapping,
> beyond choosing how much space to afford it.
>
What I have seen is that when the system needs memory, it will swap
out idle programs, and it will leave them swapped out until they are
needed again. (This is a somewhat simplified explanation...) It will
even use freed memory for thing like disk cache instead of swapping
the programs back in.
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
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