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Re: [Xen-devel] [PATCH] full support of setting scheduler parameters on domain creation

  • To: Dario Faggioli <raistlin@xxxxxxxx>
  • From: Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>
  • Date: Tue, 22 May 2012 09:47:46 +0200
  • Cc: George Dunlap <dunlapg@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxx>
  • Delivery-date: Tue, 22 May 2012 07:48:11 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 05/22/2012 09:42 AM, Dario Faggioli wrote:
On Tue, 2012-05-22 at 07:43 +0200, Juergen Gross wrote:
Reading the scheduler parameters would require a new hypervisor interface
(e.g. a new sub-command of XEN_DOMCTL_scheduler_op) which will have to be
implemented by all schedulers supporting parameter changes.

I think this would be the cleanest solution. If this is the way to go, I
can prepare a patch.

For what it counts, this is what I'd like most.

Okay, already two of us :-)
Stay tuned, patch(es) in progress...

BTW: I just discovered the first patch was not complete, as the original
coding to select the scheduler didn't take cpupools into account. It just
selected the default scheduler instead of the cpupool specific one.

Yep, I noticed it too and mentioned on the list, but didn't have time
yet to cook a patch for that... I guess you're going to cover it while
reposting, aren't you? If not, let me know, I can put something
together. :-)

Finished already :-)


Juergen Gross                 Principal Developer Operating Systems
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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