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Re: [Xen-users] Changing how CPUS are presented to windows.

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Jorge Armando Medina <jmedina@xxxxxxxxxxxxxxx>
  • Date: Wed, 03 Nov 2010 13:18:42 -0600
  • Delivery-date: Wed, 03 Nov 2010 12:18:53 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Openpgp: id=28E40632; url=

On 11/03/2010 09:01 AM, Joseph Coleman wrote:
Is there a way to change how CPU's are presented to Windows VM's? Example if you have a quad core cpu server that is 8 virtual cpus, if you assign all 8 virtual cpus to a single windows server it is viewed as 8 individual processors. Is there any way to have windows see it as 4 and not 8? The reason why is for SQL licensing. I am using open xen cloud.

I gues you are not using cpu and vcpus in you domu config file, like this:

vcpus       = '4'
cpus        = '1-7'

You can also play with xm vcpu-set and xm vcpu-pin.

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Jorge Armando Medina
Computación Gráfica de México
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