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[Xen-ia64-devel] RE: The vcpus can change from one LP to another LP very frequently


  • To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
  • From: "Zhang, Jingke" <jingke.zhang@xxxxxxxxx>
  • Date: Wed, 22 Nov 2006 16:09:33 +0800
  • Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Wed, 22 Nov 2006 00:09:58 -0800
  • List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>
  • Thread-index: AccOC9zV9JJcG3s+Te6ZxFwBa6GBvQAAIxQJAABElQA=
  • Thread-topic: The vcpus can change from one LP to another LP very frequently

Ok, let me try. Thanks!

Thanks,
Zhangjingke

>-----Original Message-----
>From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx]
>Sent: Wednesday, November 22, 2006 4:01 PM
>To: Zhang, Jingke
>Cc: xen-ia64-devel
>Subject: Re: The vcpus can change from one LP to another LP very
frequently
>
>Can you narrow it down to a specific changeset? If it turns out to be a
>credit-scheduler change (which is most likely) then you should email
>Emmanuel Ackaouy <ack@xxxxxxxxxxxxx>.
>
> -- Keir
>
>On 22/11/06 7:57 am, "Zhang, Jingke" <jingke.zhang@xxxxxxxxx> wrote:
>
>> Hi Keir,
>>     With #Cset12018, the vcpus of xen0 and the SMP guest can stay at
one
>> LP for a long time. But from the #Cset 12425 on (maybe an earlier
Cset),
>> the vcpus would jumped from here and there very fast.
>>     This fast changing will cause a lot of performance downgrade in
>> SMP_VTI.
>>
>> Thanks,
>> Zhangjingke

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