Hi, How i can calculate cpu utilization percentage for host using python libvirt API. Which function can i use for calulating cpu percentage of host and Virtual Machines? 1)Host cpu utilization  ====================  I tried getCPUStats() function,it gives the following output.Is there any way to calculate cpu percentage from the following output?  Is there any other function availabe for calculating cpu utilization percentage?    output:{'kernel': 34870000000L, 'idle': 3522190000000L, 'user': 209930000000L, 'iowait': 132240000000L}  import libvirt  conn=libvirt.open('qemu+ssh://root@192.168.1.4/system')  conn.getCPUStats(-1,0)     Thanks and Regards, Deepak S ------------------------- Message sent via Atmail Open - http://atmail.org/