[ovirt-users] Ovirt VM Performance abd CPU times

Xavier Naveira xnaveira at gmail.com
Wed Oct 29 09:21:07 UTC 2014


Hi,

We are migrating our ifrastructure from kvm+libvirt hypervisors to ovirt.

Everything is working fine but we're noticing that all the qemu-kvm 
processes in the hypervisors take a lot of CPU.

The typical example is an idle machine, running top from the machine 
itself it reports cpu use percentages below 10% and loads (with 2 
processors) of 0.0x. The process running that machine in the hypervisor 
rports cpu uses in the order of the 80-100%.

Should the values look like this? Why are the idle machines eating up so 
much CPU time?

Thank you.
Xavier




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