libvirt users - May 2014 - How i can calculate cpu utilization percentage for domain running under a host using libvirt API.

 

Hi,

How i can calculate cpu utilization percentage for domain running under a
host using libvirt API.
Which function can i use for calulating cpu percentage?

Thanks and Regards,
Deepak S

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On 05/23/2014 01:19 AM, deepak@fluentsoft.com wrote:
> How i can calculate cpu utilization percentage for domain running under a
> host using libvirt API.
> Which function can i use for calulating cpu percentage?
You have to calculate the percentage utilization yourself by making
repeated queries to the cpu status calls, and tracking how the
cumulative usage grows over time.  You may want to look at the source
code of virt-top for ideas on how to do it.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org