Re: Recommended swap for 2.4.x.

From: alex@foogod.com
Date: Tue Jan 30 2001 - 13:10:09 EST


On Tue, Jan 30, 2001 at 09:48:33AM -0200, Rik van Riel wrote:
> It has. We now leave dirty pages swapcached, which means that
> for certain workloads Linux 2.4 eats up much more swap space
> than Linux 2.2.

Ah.. thanks for the clarification. Is this duplication "hard" or "soft"?
i.e. under low-memory conditions, do these duplicated pages actually reduce
the hard limit of VM available, or just imply that using that last bit of
memory will entail greater paging overhead (because it has to do more cleanup)?

Does this mean that having a swap partition less than or equal to RAM is now
effectively pointless?

-alex
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