[Openstack-operators] libvirt cpu type per instance
Jonathan Proulx
jon at csail.mit.edu
Fri Mar 4 14:59:26 UTC 2016
On Fri, Mar 04, 2016 at 11:52:33AM +0800, gustavo panizzo (gfa) wrote:
:On Thu, Mar 03, 2016 at 03:52:49PM -0500, Jonathan Proulx wrote:
:>
:> I have a user who wants to specify their libvirt CPU type to restrict
:> performance because they're modeling embeded systems.
:>
:> I seem to vaguely recall there is/was a way to specify this either in
:> the instance type or maybe even in the image metadata, but I can't
:> seem to find it.
:>
:> Am I delusional or blind?
As previous posters pointed out I was a bit delusional obviously cpu
type only limits instruction set & is useful for bianry compatibility
but mothing to do with speed limiting or equalization.
:you can use
:https://wiki.openstack.org/wiki/InstanceResourceQuota
Thanks I think that has the bits I'm looking for. Had been reading on
a different document about cpu_shares (which are relative and thus not
what I want), but some how missed "cpu_quota" which may be the right
thing for me
so I was also a bit blind :)
Thanks,
-Jon
:
:to create "slow" flavors
:
:>
:> -Jon
:>
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