[svlug] Swap partition on a logical Volume?

Jeff Frost jeff at frostconsultingllc.com
Wed Jan 3 17:54:56 PST 2007

>From wikipedia:

However with the 2.6 Linux kernel swap files are just as fast as swap 
partitions, this recommendation doesn't apply much to current Linux systems 
and the flexibility of swap files can outweigh those of partitions. And since 
modern high capacity hard drives can remap physical sectors you're not even 
guaranteed that a partition is contiguous, and even if it were, having the 
swap data near the rest of your data will reduce seek times when swapping was 
needed, so the performance claims in the earlier pargraphs probably do not 
apply to modern Linux systems.

On Wed, 3 Jan 2007, Paul Reiber wrote:

> I'm similarly interested in learning whether there are performance
> consequences to using "swapon" to add additional swap
> as opposed to resizing the swap partition.  The assumption here is that the
> swap file is in a filesystem in a partition on the
> same drive as the swap partition; I don't imagine there are reasonable tests
> that could be done if multiple drives were involved.
> Regards,
> -Paul

Jeff Frost, Owner 	<jeff at frostconsultingllc.com>
Frost Consulting, LLC 	http://www.frostconsultingllc.com/
Phone: 650-780-7908	FAX: 650-649-1954

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