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.v...@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.prat...@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.v...@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.v...@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 >>> gentilmente comunicazione. >>> Per qualsiasi informazione si prega di contattare supp...@procne.it . >>> Rif. 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