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Re: [Xen-devel] Unable to use software counters

  • To: "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>
  • From: "Jyotirmaya Tripathi" <jyotirmaya.tripathi@xxxxxxxxx>
  • Date: Wed, 14 Nov 2007 13:09:21 -0500
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 14 Nov 2007 10:09:59 -0800
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Thanks for quick reply.
I tried as follows

perfc=y make  : which builds xen and installs it in dist directory
sh ./install.sh  : which installs xen in /boot

But still I am getting same error. Any idea where I am wrong?

On Nov 14, 2007 12:12 PM, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:
Performance counters are not built into Xen by default. You need to build Xen with 'perfc=y make'.

 -- Keir

On 14/11/07 17:09, "Jyotirmaya Tripathi" <jyotirmaya.tripathi@xxxxxxxxx> wrote:

Hi All

I want to use software counters available via "xenperf". However I get this error
"Error getting number of perf counters: 38 (Function not implemented)". Am I missing something? Some configuration or option which needs to be turned on before I can use these counters. Any help would be much appreciated.

I am using Xen 3.1.0 x86_64

Jyotirmaya Tripathi
Xen-devel mailing list



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