Re: [Xen-users] xl cpupool

[Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>]

Am 04.02.2013 08:43, schrieb Linux Hack:
> Hi
>
> That's something interesting. Would it possible to make this work on xm
> or xl tool stack on xen version 3.4.4/4.1.4?
3.4.4: no (cpupools were introduced in 4.1)

4.1.4: yes. Please note, that xl is marked as "experimental" in 4.1. xm
       should work.


Juergen

> On Monday, February 4, 2013, Juergen Gross <juergen.gross@xxxxxxxxxxxxxx
> <mailto:juergen.gross@xxxxxxxxxxxxxx>> wrote:
>  > Hi,
>  >
>  > Am 02.02.2013 00:53, schrieb Linux Hack:
>  >>
>  >> Hi,
>  >>
>  >> Would it possible to create cpupools with xl after the server boot and
>  >> then assign one cpu-pool to dom0 and another one for dom-u's?
>  >
>  > Yes.
>  >
>  > You have to (assuming Xen 4.2):
>  >
>  > 1. remove cpus from Pool-0 with "xl cpupool-cpu-remove"
>  > 2. reduce number of dom0 cpus to fit to reduced Pool-0 with "xl vcpu-set"
>  > 3. create the domU cpupool with "xl cpupool-create"
>  > 4. assign the free cpus to the new cpupool ("xl cpupool-cpu-add")
>  > 5. create the domUs with "pool=<cpupool>" to start them in the new
> cpupool
>  >    (either in the config files of the domUs or as parameter of "xl
> create"
>  >
>  >> Also is there any change to make this work on server startup?
>  >
>  > You would have to add an init script in dom0.

--
Juergen Gross                 Principal Developer Operating Systems
PBG PDG ES&S SWE OS6                   Telephone: +49 (0) 89 3222 2967
Fujitsu Technology Solutions              e-mail: juergen.gross@xxxxxxxxxxxxxx
Domagkstr. 28                           Internet: ts.fujitsu.com
D-80807 Muenchen                 Company details: ts.fujitsu.com/imprint.html

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