I am a student and I am using python libvirt api, like the ones which were used in order to build virt-manager.
I am wondering how to obtain the %cpu usage and I thought asking to you, as you did it for your program which is written in python. getCpuStats() function on a domain object gives me cpu_time,user_time,system_time...I don't know how to combine them in order to obtain the % usage. For the guest system I take the delta between two successive measurations and make a division, putting idle time just on the denominator...but here? Maybe the cpu_time is actually an idle time for the guest?
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