[CentOS-virt] Increase CPU usage on HV after upgrade (7.2 -> 7.3)

On Wed, Jan 18, 2017 at 2:34 PM, Subscriber <ml-lists at agoris.net.ua> wrote:

> Hello ,
>
> After upgrading the system from CentOS 7.2.1511 to CenOS 7.3.1611 I
> see that the average processing time has increased from 5-7% to 12-15%
> (doubled). Not critical but it is not pleasant. Server as KVM with 5
> virtual machines. Someone noticed something similar? If so, how to fix
> that?
>
>
Discussed with KVM guys, here's the answer:
1% per VM seems to much on idle VM; if the VM is not idle you are
getting better performance in exchange.  For idle VMs the difference
should be roughly 0.1% per VM.





> Thx.
>
>
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