On Wed, Oct 31, 2012 at 4:50 PM, George-Cristian Bîrzan <gc@birzan.org>wrote:
on 0.10.2:
[root@host34 libvirt]# virsh nodeinfo CPU model: x86_64 CPU(s): 24 CPU frequency: 2200 MHz CPU socket(s): 1 Core(s) per socket: 6 Thread(s) per core: 1 NUMA cell(s): 4 Memory size: 131971020 KiB
and http://birzan.org/capabilities4-newlibvirt.txt
This has made the problem even worse, as we now can only use 6 cores out of 24 by default (libvirt pins qemus to the CPUs is sees available, so we have to manually taskset them after starting).
I should check before I let my mouth run. This actually fixed the problem, we now get all 24 CPUs: virsh # vcpuinfo 08867271-d458-43dc-8a03-807e83d107b4 VCPU: 0 CPU: 9 State: running CPU time: 1.3s CPU Affinity: yyyyyyyyyyyyyyyyyyyyyyyy To give you an example from the 'broken' host (still with 0.10.2): [root@host29 ~]# virsh vcpuinfo 17db9ebb-691b-47e1-bbf4-c9e3c1388d4f VCPU: 0 CPU: 3 State: running CPU time: 3103.2s CPU Affinity: yyyyyyyyyyyy VCPU: 1 CPU: 1 State: running CPU time: 3460.4s CPU Affinity: yyyyyyyyyyyy -- George-Cristian Bîrzan