[openstack-dev] Why does my Windows 7 VM running under Linux' KVM not use all the virtual processors?

Ben Nemec openstack at nemebean.com
Mon Apr 21 15:57:16 UTC 2014


This is a development list, and this sounds like a usage question so I 
would suggest that you ask on the users list instead: 
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack

Thanks.

-Ben

On 04/18/2014 09:36 PM, shenwei9008 wrote:
> I hava a problem that in windows 7 VM about the number of vCPU. Then I
> set up windows instance and give it 8cores, and in windonw7 Device
> Manager I check out that there are 8 cores. But In cmd.exe execute
> “wmic->cpu get *" find it out that there are 2 single core, I don't know
> Why.  And I modify /etc/libvirt/qemu/instance-*.xml as follow:
>
> |<vcpu>8</vcpu>
>   <cpu>
>       <topology sockets='1' cores='4' threads='2'/>
>   </cpu>|
>
> But this is modified after VM is set up. In according to my need, before
> VM setting up, VM can be given 8 cores not 2 single core.
> ------------------------------------------------------------------------
> shenwei9008
>
>
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