Re: Query with respect to VCPU scheduling

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On Fri, Oct 03, 2014 at 01:40:29PM -0400, Mohan Kumar wrote:
>Hello all,
>
>I am new to KVM and look at a particular case in KVM.
>I know that KVM uses CFS.
>
>The question I have is as follows:
>
>- I have two VMs with 2 VCPU each. And the actual
>  CPUs are also 2 and both the VMs use the 2 CPUs.
>
>I want one VM to use only 25 % of the actual CPU and the
>remaining to be used by the other VM.
>
>Since KVM uses CFS, I am thinking that with CFS I can
>provide these guarantee as mentioned above.  I know
>we can do these shares with cgroups.
>
>Is cgroups the only option?. Any pointers to this would help.

How about CFS bandwidth control?

Regards,
Wanpeng Li 

>
>Thanks,
>Mohan
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