Am Mittwoch, den 11.06.2008, 11:36 -0400 schrieb Ruslan Sivak: > Tim Verhoeven wrote: > > On Wed, Jun 11, 2008 at 4:46 PM, Ruslan Sivak <russ@xxxxxxxxxx> wrote: > > > >> While it seems to make sense (and both xentop and virsh nodeinfo) show the > >> right amount of memory, even when I shut down one of the VM's, free and top > >> still think I only have 6GB of ram. > >> > > > > That is normal, the memory that was used by VM's is not automatically > > returned to the dom0 and therefore won't show when running free and > > top. > > > > Regards, > > Tim > > > > > I guess it has something to do with the ballooning driver for Dom0. It > looks like I just tried to allocation too much memory to DomU and the > box went down hard. I think there's a setting in xen to the min amount > of memory to go down to, but I'm not sure why Dom0 is using 600mb of > RAM. Is there a mini installation of CentOS that I can do that would > use less RAM? I've already unchecked all the boxes when installing > CentOS. I would like Dom0 to be as small as possible, both due to RAM > usage and from a security perspective. > > Russ The option you think of is called dom0-min-mem and can be found in /etc/xen/xend-config.sxp Regarding to a mini installation of CentOS - not that I know of, but you must have some daemons running, since on my installations here DOM0 only consumes 373MB and I have postfix running on DOM0 as well. Henry _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos