title: How can I get CPU usage of VM(KVM)
body: <p>How can I get the cpu usage of vm in KVM like virt-manager?
  <a href="http://i.stack.imgur.com/gXMVa.png" rel="nofollow">virt-manager monitoring vm cpu usage</a></p>
  
  <p>Libvirt didn't provide API.</p>
  
  <p>Does anyone know how to get vm cpu usage from host?  </p>