On 11/12/2012 03:51 AM, Vinicius Gonçalves Braga wrote: I'm not sure I know what you mean by threads per vCPU. From qemu's perspective, there is always one thread per vcpu (that is, each vcpu is a thread), and what the guest is doing with its vcpu (such as running an OS that then presents multiple threads within the guest) is not something qemu can see. Also, what do you mean by vCPU clock? Can there even be a case where the guest is running at a different CPU frequency than the host? -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org