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[Xen-users] RE: xm vcpu-set command has no effect on fully virtualized machine

  • To: <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Sangati, Ramya Govinda Reddy" <RamyaGovinda.Sangati@xxxxxxxxxxxxx>
  • Date: Tue, 24 Apr 2007 12:44:33 +0530
  • Delivery-date: Tue, 24 Apr 2007 00:13:33 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AceGPf6kYT7Ej0ZnT4Ofsm/E6KGpPwAAc89Q
  • Thread-topic: xm vcpu-set command has no effect on fully virtualized machine


I tried the command 
xm vcpu-set <domain ID> < vcpu-count> 
in Red Hat 5, to reduce the number of virtual CPU's allotted to a virtual
machine. I am encountering a problem in this. 
When I install a guest OS using Paravirtualization option the above command
works fine. 

However when I execute the above command for a guest OS which is fully
virtualized the command has no effect. Is this expected? Or is it a bug?   

When I type the command xm list, for a par virtualized OS, it shows the
changes that I made, whereas for a fully virtualized OS, there is no change
in the number of VCPU's.   

Also xm mem-set <domain ID> < memory> does not work in a Fully Virtualized
Guest OS. 


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