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Re: [Xen-devel] Latest unstable detects cpu speed incorrectly

  • To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • From: "Mr. Teo En Ming (Zhang Enming)" <space.time.universe@xxxxxxxxx>
  • Date: Wed, 28 Oct 2009 02:22:20 +0800
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, space.time.universe@xxxxxxxxx
  • Delivery-date: Tue, 27 Oct 2009 11:22:45 -0700
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

I have set tsc_native=1 in my Windows XP HVM configuration file but
there is no noticeable improvement in performance.

Here is the Youtube video of the 2nd iteration of the Super PI 32M
benchmark test.


Have I set the parameter correctly?

Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical
Alma Maters:
(1) Singapore Polytechnic
(2) National University of Singapore
Blog URL: http://teo-en-ming-aka-zhang-enming.blogspot.com
Email: space.time.universe@xxxxxxxxx
MSN: teoenming@xxxxxxxxxxx
Mobile Phone: +65-9648-9798
Street: Bedok Reservoir Road
Republic of Singapore

On Wed, Oct 28, 2009 at 1:34 AM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
> On 27/10/2009 17:25, "Mr. Teo En Ming (Zhang Enming)"
> <space.time.universe@xxxxxxxxx> wrote:
>> How much improvement (in terms of percentages) do you forsee?
> Small. A percent or two at most in reasonable situations.
>  -- Keir

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