[CentOS] Re: changing swap size
John Summerfield
debian at herakles.homelinux.org
Thu Mar 29 06:21:46 UTC 2007
John R Pierce wrote:
> John Summerfield wrote:
>
>> I don't know what advantage swap partitions have over swap files.
>>
>> Swap files can be created and added as any time.
>
>
>
> they are always contiguous, and have no overhead in inode and cluster
> mapping.
Contiguous is irrelevant; unless one has disk dedicated to swap, the
partition's never close to anything important.
Is the rest something that matters for 2.6 kernels?
See http://en.wikipedia.org/wiki/Virtual_memory
[edit] Swapping in the Linux and BSD operating systems
>
> that said, the actual swap usage on a non-overloaded system -should- be
> close to zero.
Indeed. And if it's high, a good way to reduce it is to add RAM. It
escapes me though, why I should add swap too.
--
Cheers
John
-- spambait
1aaaaaaa at coco.merseine.nu Z1aaaaaaa at coco.merseine.nu
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