[Openstack] Openstack+KVM+overcommit, VM priority
enikanorov at mirantis.com
Wed Jan 11 22:13:27 UTC 2017
see if it provides an answer:
On Wed, Jan 11, 2017 at 1:55 PM, James Downs <egon at egon.cc> wrote:
> On Wed, Jan 11, 2017 at 09:34:32PM +0000, Ivan Derbenev wrote:
> > if both vms start using all 64gb memory, both of them start using swap
> Don't overcommit RAM.
> > So, the question is - is it possible to prioritize 1st vm above 2nd? so
> the second one will fail before the 1st, to leave maximum possible
> perfomance to the most importan one?
> Do you mean CPU prioritization? There are facilities to allow one VM or
> another to have CPU priority, but what, if a high priority VM wants RAM,
> you want to OOM the other? That doesn't exist, AFAIK.
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