On Wed, Aug 18, 2010 at 1:00 PM, Sam Varshavchik <mr...@courier-mta.com> wrote: > I'll probably have a new server with 16 gigs of RAM on the way, soon. > > With this amount of RAM being sufficient, do I really need a swap partition > set up? I do understand that a swap partition is needed for hibernation, but > this server does not need to hibernate.
On servers I normally use strict overcommit mode to not fail any memory claims which are already mapped. Swap just raises the CommitLimit, so that I am able to commit more memory (see kernel-doc/Documentation/vm/overcommit-accounting and fs/proc.txt on meminfo). When using heuristic mode you certainly don't need to use swap but have a higher risk of seeing the out of memory handler kick in earlier. In a lot of situation the kernel is able to page out not-needed memory to disk to have more room for I/O buffering (swappiness) thus improving performance. -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
