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Re: [libvirt] Globally Reserve Resources for Host



On Thu, Nov 1, 2012 at 11:09 AM, Eric Blake <eblake redhat com> wrote:
> On 11/01/2012 07:16 AM, Dusty Mabe wrote:
>>
>> Does anyone think this functionality would be useful? This is primarily to
>> prevent the host from being starved when the allocation of guests have the
>> host overcommitted/oversubscribed.
>
> Yes, this functionality would be useful.  In fact, I even proposed a
> possible design, and Dan chimed in with some improvements (but no one
> has coded anything towards that design) ages ago:
> https://www.redhat.com/archives/libvir-list/2011-March/msg01546.html
>
> Basically, you would create a virGroupPtr that describes the entire
> resources you are willing to allow to VMs, then ensure that all VMs are
> members of that virGroupPtr.

Thanks for the response and some pointers to relevant design
information. If I get some free cycles to implement such a feature I
will get back to you with some more targeted design questions or maybe
even a possible implementation.

Dusty


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