[libvirt-users] Can I configure cores instead of CPU's

[Todd And Margo Chester]

> -------- Original message --------
> Subject: Re: [libvirt-users] Can I configure cores instead of CPU's
> From: Todd And Margo Chester <toddandmargo at gmail.com>
> To: "libvirt-users at redhat.com" <libvirt-users at redhat.com>
> CC:
>
>
> Hi All,
>
> Scientific Linux 6.1 x64
> qemu-kvm-0.12.1.2-2.160.el6_1.2.x86_64
>
> My XP-Pro guest will only let me use two CPUs.
> Is there a way I can tell Virt-Manager to use
> one CPU with six cores instead of four separate
> CPUs?
>
> I can manually insert things with
> virsh edit KVM-WinXP
>
> Currently, I have:
> <vcpu>6</vcpu>
>
> I found an example of a run string:
>
> -smp 2,sockets=2,cores=1,threads=1
>
> But I will be darned if I can figure out the virsh xml syntax.
>
> Many thanks,
> -T

On 12/02/2011 05:32 PM, Frank Hauptle wrote:
 > Yes under advanced in cpu in virt manager are socket /core
 > settings. i use a fedora virt manager to connect to sl61
 > libvirt. more options that way.


I configured my processor in virt-mamager:

     CPU's: Current Allocation: 2
     Manual set CPU Topology:
         Sockets: 1
         Cores: 6
         Threads: 1

or from my XML file

    <vcpu>1</vcpu>
    <cpu>
        <topology sockets='1' cores='6' threads='1'/>
    </cpu>

I still get two CPUs in my guest XP-Pro.

What am I doing wrong?

-T