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Re: [libvirt] Can not get domain's cpu time



On Thu, Jul 16, 2009 at 05:04:01PM +0800, Zhang Qian wrote:
> Hi,
> 
> I have a domain running in my KVM box, and try to get its vcpu info by
> calling virDomainGetVcpus(), but it seems the cpu time returned to me
> is always 0.
> 
> And I also found virsh can not get the CPU time too:
> $ virsh vcpuinfo aaa
>     VCPU:           0
>     CPU:            0
>     State:          running
>     CPU Affinity:   yy
> 
> I tried the same virsh command in my Xen box for a running domain, the
> output is:
> $ virsh vcpuinfo test1
>     VCPU:           0
>     CPU:            1
>     State:          running
>     CPU time:       322.1s  <----- I need this
>     CPU Affinity:   yy
> 
> As you see, for KVM domain, there is no "CPU time".
> But it's very strange that virt-manager can show the right CPU usage
> for my running domain, I do not know where virt-manger gets it.

virt-manager only shows the CPU time for the whole guest (virsh dominfo).
Here you are asking for the per-vCPU time, which we've not implemented
for QEMU yet. We should fix this missing support...

Daniel
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