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Re: [Xen-devel] Consideration of cpu-processing in domain-0 by credit scheduler

  • To: Kuriakose Mathew <kmathew123@xxxxxxxxx>
  • From: George Dunlap <George.Dunlap@xxxxxxxxxxxxx>
  • Date: Tue, 6 Oct 2009 10:26:06 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 06 Oct 2009 02:26:31 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

At the moment, there is no consideration of work done in dom0 on
behalf of a guest domain, and no work planned as of yet.  Long-term,
the plan is to use stub domains, and potentially have some kind of
"co-scheduling", where work done in the stub domain is counted as part
of the guest VM.  That still doesn't account for work done in back-end
drivers, of course.


On Mon, Sep 28, 2009 at 4:43 AM, Kuriakose Mathew <kmathew123@xxxxxxxxx> wrote:
> Hi,
> I have come across many papers related to cpu sharing (and also specifying
> cpu limits) between guest domains taking into account the cpu-processing in
> domain-0 for the corresponding guest domains. But in most of such papers
> SEDF scheduler or its variation was being used . No work on 'credit
> scheduler' was found in this regard. Is there already some work done(or even
> going on) that I have missed or is there something in credit scheduler which
> by default takes into consideration the cpu-processing in the domain-0 when
> we specify weights and cap of different guest domains?
> Thanks
> Mathew
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