Re: [SLE] swap space question in 9.3 install
From: Jerry Feldman (gaf_at_blu.org)
Date: 07/18/05
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To: suse-linux-e@suse.com Date: Mon, 18 Jul 2005 11:05:21 -0400
On Monday 18 July 2005 10:27 am, Greg Wallace wrote:
> So the space is set aside for memory swapping, thus "swap", right? And,
> as you say, the os won't store any permanent files there. The os can
> then dump RAM buffers into it in whole, starting right at the beginning
> of the swap space and moving forward, without worrying about stepping on
> any files.
There are no permanent files ever stored in swap. In essence, the name swap
is a misnomer. Your memory is divided up into pages. The page size is a
function of the hardware and OS. The Linux kernel only needs to store
dirty pages in the swap space. During periods of high memory use, systems
may start to use the swap space excessively.
(I don't want to get into a detailed technical discussion of how paging
works).
Also note that Linux supports either a separate swap partition, a swap file,
or both. The swapon(8) command may be used to turn paging areas on or off.
-- Jerry Feldman <gaf@blu.org> Boston Linux and Unix user group http://www.blu.org PGP key id:C5061EA9 PGP Key fingerprint:053C 73EC 3AC1 5C44 3E14 9245 FB00 3ED5 C506 1EA9 -- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com
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