Memory always fully allocated

[obrienmd]

In our test lab virtual host (running 1.4, using KVM only), it seems that all VM memory is always fully allocated. When using kvm on updated ubuntu, or vmware esxi, I was able to have this same VM load (14gb total subscribed memory, but machines are very sparsely used) run WELL within the 8gb of physical RAM on the machine. However, under Proxmox, it's using all 8gb of physical RAM and 8gb of swap (and it's all being used eg green in htop, not cached).

Hardware:
i7-860
8GB DDR3
P55 chipset
1.5TB lvm on hardware RAID (all vms using lvs for storage, cache=none in qemu config)

VMs (all using virtio for disk, e1000 for net)
4x Ubuntu 9.10
3x Windows Server 2008

Thoughts?

 

[JustaGuy]

I wondered about that, too.

Small Business Server 2008's memory idles at 9848 of 10240.

And a Centos 5.4 x64 idles at 656 of 1536, which seems a bit more normal.

I vaguely recall someone in an IRC room somewhere long ago telling me it has to do with some database function in ActiveDirectory.

 

[BiagioParuolo]

Setup win swap file.