[Kimchi-devel] RFC: smt support

[Aline Manera]

On 07/01/2014 11:32 PM, Aline Manera wrote:
>
> On 06/26/2014 07:27 PM, Christy Perez wrote:
>> Quick poll for adding support for
>> <cpu>
>>      <topology sockets='1' cores='2' threads='1'/>
>> </cpu>
>>
>> I know it would be nice to let users add it on a per-vm basis, but maybe
>> it might be something that we'd rather just leave in the template only.
>> Having it in the template only seems simpler when thinking about UI
>> design, imo, but I'd love to hear what everyone else thinks.
>
> According to the reference 
> https://www.ibm.com/developerworks/community/blogs/fe313521-2e95-46f2-817d-44a4f27eba32/entry/enabling_smt_on_powerkvm_guests?lang=en
>
> There are some restrictions to configure SMT what can not be intuitive 
> for a Kimchi user.
>
> So I like the idea to keep it only on templates (at least for while) 
> and see how Kimchi users react on that.
> We will need to properly add a logic to get the best pairs of 
> cores/threads according to the vcpus number.
>
> In my mind, we should only add a check box on Template edit: "Enable 
> SMT" if checked Kimchi knows what it needs to do when creating a VM
>
>> Thanks,
>>
>> - Christy
>>
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>