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SubjectRe: Limiting program swap
Bill Davidsen wrote:
> I have several machine of various memory sizes which suffer from really
> poor performance when doing backups. This appears to be because all the
> programs other than the backup quickly get swapped to make room for i/o
> buffers.
> Is there some standard portable way to prevent this, either by reserving
> some memory for programs which will not get swapped regardless of i/o
> pressure, or alternatively limiting the total memory used for i/o
> buffers, dcache, and similar things?

I'm wondering if turning the /proc/sys/vm/swappiness knob would help,
but I'll honestly admit that I don't know.

Jesper Juhl
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