[Gllug] Linux - big not small

Richard Jones rich at annexia.org
Fri Aug 5 08:19:16 UTC 2005


On Thu, Aug 04, 2005 at 07:28:26PM +0100, John Winters wrote:
> Not quite true.  There were apparently assumptions in the swap code in
> Linux about Swap = 2 * RAM which made themselves felt in early versions
> of the 2.6 kernel.  If that rule wasn't followed it could lead to
> catastrophic failure of the system.  The explanation which I saw from
> one of the core developers (Linus himself?) was that the assumption had
> always been there, but had only manifested itself as a problem in the
> re-worked code in 2.6.  The advice then was to have either no swap or
> swap = 2 * RAM.

Do you have a reference for this?

Rich.

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