Open Stack

Hi,

your scheduler delivers all threads to the cores, so if you have some
running processes in your VM, all cores will be used.
A CPU core in your VM is representing by one process on the host system,
normally. That's depend on your hypervisor.

Another thing, you can set explicitly which core you will use on your
host system for your VM to isolate the processes and maps these to one core.

Hope that helps.

Cheers
Heiko

Am 22.09.2015 um 11:57 schrieb Abhishek Talwar:
> Hi Folks,
>
>
> I have a doubt regarding Vcpu that are assigned to an instance in
> OpenStack.
>
> When we say that we are assigning 5 Vcpus to an instance, does that
> mean that the instance will be using all those 5 vcpus together or it
> is on the load on it.
>
> So the question is are the Vcpus consecutively used or it is used one
> by one.
>
> Also if they are used one by one how can we get to know how many Vcpus
> is the VM currently using.
>
> Thanks and Regards
> Abhishek Talwar
>
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