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From Rafael Weingärtner <rafaelweingart...@gmail.com>
Subject Re: AW: cpu overprovisioning
Date Tue, 21 Apr 2015 17:50:30 GMT
I have not looked at the code, but that seems odd.
Restarting VMs instances to update the resource usage/resource availability
when changing the overprovisioning factor.

On Tue, Apr 21, 2015 at 12:51 PM, S. Brüseke - proIO GmbH <
s.brueseke@proio.com> wrote:

> Please try to stop and start the vm. Maybe reboot is not working here. You
> should start to see more free CPU after the first vm.
>
> Mit freundlichen Grüßen / With kind regards,
>
> Swen Brüseke
>
> -----Ursprüngliche Nachricht-----
> Von: Ugo Vasi [mailto:ugo.vasi@procne.it]
> Gesendet: Dienstag, 21. April 2015 16:40
> An: users@cloudstack.apache.org
> Betreff: Re: AW: cpu overprovisioning
>
> Hi Swen,
> I try rebboting 2 vm but the amount of cpu MHz is not changed. Do I have
> to restart all vm before you see a change?
>
>
> Il 21/04/2015 16:16, S. Brüseke - proIO GmbH ha scritto:
> > This is because the factor of overprovisioning is attached to the
> instance too! And this factor is only changing after rebooting the instance.
> > So after a change of cpu.overprovisioning.factor you need to reboot all
> instances on this cluster which were running before this change was made.
> >
> > Mit freundlichen Grüßen / With kind regards,
> >
> > Swen Brüseke
> >
> > -----Ursprüngliche Nachricht-----
> > Von: Ugo Vasi [mailto:ugo.vasi@procne.it]
> > Gesendet: Dienstag, 21. April 2015 16:06
> > An: users@cloudstack.apache.org
> > Betreff: Re: cpu overprovisioning
> >
> > If I change the over-provisioning ratio in cluster-relative settings
> > (infrastructure->cluser->cluster-name->settings) the dashboard show the
> sum of real GHz the overprovisioned amount of GHz (324GHz) as aspected, but
> after a while also the sum of Ghz is multiplied by the same factor making
> it unnecessary...
> >
> > Il 21/04/2015 15:26, Bharat Kumar ha scritto:
> >> In case of cloudstack, cpu capacity for host is total of cpus * no of
> Ghz * overporvisoning.
> >>
> >> total capacity = sum of capacities of individual hosts.
> >>
> >> Thanks,
> >> Bharat.
> >>
> >> On 21-Apr-2015, at 6:49 pm, Abhinandan Prateek <
> abhinandan.prateek@shapeblue.com> wrote:
> >>
> >>> Available CPU will be 3 times the actual CPU when over provisioned by
> 3.
> >>>
> >>> The UI not showing the over provisioned value seems like a bug.
> >>>
> >>> -abhi
> >>>
> >>>
> >>>> On 21-Apr-2015, at 6:34 pm, Ugo Vasi <ugo.vasi@procne.it> wrote:
> >>>>
> >>>> Hi all,
> >>>> we have a cluster of three machines with 16 CPU at 2.2GHz each and we
> have set a cpu-overprovizioning to 3.
> >>>>
> >>>> I would expect that the CPU system capacity of the dashboard appear
> with the sum of megahertz CPUs multiplied by three instead I get the real
> sum (108MHz).
> >>>>
> >>>> I do not understand if this overprovisioning allows me to allocate
> more MHz of real ones asthe documentation say since in reality the virtual
> machines occupy on average only 20% of the computing power.
> >>>>
> >>>> thanks in advance
> >>>>
> >>>> --
> >>>>
> >>>> U g o   V a s i    <ugo.vasi@procne.it>
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> >>
> >>
> >
>
>
> --
>
>    U g o   V a s i    <ugo.vasi@procne.it>
>    P r o c n e  s.r.l    >)
>    via Cotonificio 45  33010 Tavagnacco IT
>    phone: +390432486523 fax: +390432486523
>
> Le informazioni contenute in questo messaggio sono riservate e
> confidenziali ed è vietata la diffusione in qualunque modo eseguita.
> Qualora Lei non fosse la persona a cui il presente messaggio è
> destinato, La invitiamo ad eliminarlo e a non leggerlo, dandocene
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> Per qualsiasi informazione si prega di contattare support@procne.it .
> Rif. D.L. 196/2003
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>
>
>
>
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-- 
Rafael Weingärtner

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