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Re: [Xen-devel] Question about the Xen Scheduler

  • To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>
  • From: "Girish V" <girish.xen@xxxxxxxxx>
  • Date: Tue, 2 Sep 2008 16:34:12 -0400
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 02 Sep 2008 13:34:37 -0700
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On Tue, Sep 2, 2008 at 3:11 PM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
> On 2/9/08 18:32, "Girish V" <girish.xen@xxxxxxxxx> wrote:
>> I am trying to understand the behavior of the Xen scheduler. I am
>> using Xen 3.0.2 on a 1 CPU machine and I have the default scheduler
>> (which I believe is the credit scheduler - and I have not explicitly
>> set any weights/caps for the domains).
> The credit scheduler was introduced in 3.0.3, so you are using the old SEDF
> scheduler. I'd recommend you upgrade your Xen version.

Thanks for pointing that out. Still I am not sure I understand the
behavior I see. Should I set any parameters to ensure that both the
dom0 and user domain are scheduled when both are executing cpu
intensive workloads?

>  -- Keir

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