Correction, we only tweak swappiness with a very small swap partition, leaving overcommit options default.
On 02:05PM Tue 02/10/15 -0500, Gavin W. Burris wrote: > We don't disable swap, ala the voodoo mentioned in the Linux Journal > article. We only create a one gig swap, setting vm.swappiness=1 and > vm.overcommit_memory=2 to stay out of it. No problems, but I wonder if > we should just skip a swap partition, all together. > > Cheers. > > On 05:35PM Fri 02/06/15 -0500, Prentice Bisbal wrote: > > Do any of you disable swap on your compute nodes? > > > > I brought this up in a presentation I gave last night on HPC system > > administration, but realized I never actually did this, or know of anyone > > who has. I would tweak the vm.overcommit_memory setting, but that's not the > > same as disabling swap altogether. I'd like to try doing this in the future, > > but I prefer to learn from someone else's mistakes first. > > > > > > -- > > Prentice > > _______________________________________________ > > Beowulf mailing list, [email protected] sponsored by Penguin Computing > > To change your subscription (digest mode or unsubscribe) visit > > http://www.beowulf.org/mailman/listinfo/beowulf > > -- > Gavin W. Burris > Senior Project Leader for Research Computing > The Wharton School > University of Pennsylvania > _______________________________________________ > Beowulf mailing list, [email protected] sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf -- Gavin W. Burris Senior Project Leader for Research Computing The Wharton School University of Pennsylvania _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
