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RE: [Xen-devel] vmx status report against cset 15072 - one performanceissue


  • To: "Ian Pratt" <Ian.Pratt@xxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Zhao, Yunfeng" <yunfeng.zhao@xxxxxxxxx>
  • Date: Fri, 18 May 2007 20:19:14 +0800
  • Delivery-date: Fri, 18 May 2007 05:17:59 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AceY9Hl0TwLbUaskRQO2yUxECeuicQATWl7gAADq9oA=
  • Thread-topic: [Xen-devel] vmx status report against cset 15072 - one performanceissue

We suspect it may be caused by the update of qemu.
IA64 part has also been found the same performance issue.

Thanks
Yunfeng

>-----Original Message-----
>From: Ian Pratt [mailto:Ian.Pratt@xxxxxxxxxxxx]
>Sent: 2007年5月18日 19:46
>To: Zhao, Yunfeng; xen-devel@xxxxxxxxxxxxxxxxxxx
>Cc: ian.pratt@xxxxxxxxxxxx
>Subject: RE: [Xen-devel] vmx status report against cset 15072 - one
>performanceissue
>
>> 2. Performance of HVM guest downgraded much.
>> Compares with cset 15017, kernel build on HVM against 15072 downgraded
>> about 35%.
>> And even the execution time of our nightly testing has been doubled.
>
>Please can you try and pin down the range of changesets for this
>regression -- there's several possibilities in this range of 55.
>
>Thanks,
>Ian

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