Tim Verhoeven wrote:
On Wed, Jun 11, 2008 at 4:46 PM, Ruslan Sivak russ@vshift.com 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