[CentOS-virt] 4 CPU with WinXP on Centos 5.5 KVM?

Fri May 28 10:24:27 UTC 2010
Nenad Opsenica <nenad at panline.net>

Kenni Lund wrote:
> 2010/5/28 Marcelino Mata <mmata at multimatic.com>:
>> Has anyone had any success getting WinXP 32bit to use 4 CPU's under
>> Centos 5.5 KVM?
>> I have tried everything and the best I can get is 2 CPU's.  I tried
>> everything listed here
>> http://www.linux-kvm.com/content/running-windows-smp-guests  I am using
>> the VIRTIO drivers.
> As it is discussed in the comments on the page you have linked above,
> XP only supports 2 CPUs but more cores.
> AFAIK KVM will always emulate CPUs not cores.
In fact, newer qemu/kvm supports "cores" parameter when used with smp: 

RHEL6 beta has new kvm and qemu - it is possible to use multi-core CPU 
within virtualized winXP there.