On Mon, Jan 26, 2015 at 01:08:50PM +0100, Michal Privoznik wrote:
On 23.01.2015 19:46, Chris Friesen wrote:
Hi,
I'm running into some problems with libvirt and hoping someone can point me at some instructions or maybe even help me out.
First, are there any requirements on qemu version in order to use the "numatune" and/or "cpu/numa/cell" elements? Or do they use cgroups and not the native qemu numa support?
For numatune you need a qemu with 'memory-backend-{ram,file}' objects. Those were introduced in qemu-2.1.0. As of libvirt, you'll need libvirt-1.2.7 at least. Although the newer the better - there were couple of fixes recently.
Recently I did a test here with KVM nested virtualization (I was testing from git, so the commits are noted too): https://kashyapc.fedorapeople.org/virt/openstack/nova-libvirt-numa-testing/N... The libvirt guest XML configs are in that directory too. The above test is based on upstream notes in context of OpenStack Nova, written by Daniel Berrangé: https://review.openstack.org/#/c/131818/6/doc/source/devref/testing/libvirt-... -- /kashyap