[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-users] Don't mount hardware performance counter using xenoprof

  • To: xen-users@xxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: Yuto Nakai <yuto.k2c@xxxxxxxxx>
  • Date: Fri, 7 Jan 2011 15:09:40 +0900
  • Cc:
  • Delivery-date: Thu, 06 Jan 2011 22:11:23 -0800
  • Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:from:date:message-id:subject:to:content-type; b=GwsGJxh12t71XGJrbwLO+6cJz01LFZvrcTodW6rHiTWBZxP4DI+vOJWuWrhRrxAKzK sxbgKG1srgk6gmr8XsXfcVkBdfOwzpz5+B72Xt8HeRJBYZRG7kRMBfZjgVrdM3clpiGJ 2VePGrPLX46/jJyCTvFlzYtmevlqW/gP5Jot4=
  • List-id: Xen user discussion <xen-users.lists.xensource.com>


I want to use xenoprof to profile the overhead of the hypervisor. 
I patched the oprofile-0.9.5 using the patch from xenoprof.sourceforge.net

Debian GNU/Linux 5.0 (lenny)
Xen-4.0.1 + (linux-2.6-pvops.git) Dom0
My platform is Intel(R) Core(TM) i7 CPU           960  @ 3.20GHz

My problems are:
In Dom0,  
But hardware performance counters don't be mounted 
after initialization (opcontrol --init)

# ls /dev/oprofile
backtrace_depth    cpu_buffer_size   pointer_size
buffer                    cpu_type            stats 
buffer_size             dump                time_slice 
buffer_watershed    enable

0(and 1,2,3) directories are not exist.

Is there any reason for this ?

Xen-users mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.