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

[Xen-users] Using XenoProf...


  • To: xen-users@xxxxxxxxxxxxxxxxxxx, Fasiha Ashraf <feehapk@xxxxxxxxxxx>
  • From: Ahmad Hassan <ahmad.hassan@xxxxxxxxx>
  • Date: Mon, 8 Feb 2010 13:24:48 +0000
  • Cc:
  • Delivery-date: Mon, 08 Feb 2010 05:25:56 -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=HVNMEZ+xh1q26mx3FBN0H7CxEw6yWYC+6vYj2xT/NQUyd1HnNDxFzWawV37rIU/b6F bFC+NX4QLt8ApiyTXdum5RxfkAopM2wOoFogY3z2mZk8HcbrnPjwlGKY8Q0w1BxkoS+x O00+Hb9rEzt11NiK3Dm+hC8ZSL1xqLu8hXi1U=
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hi,

I am working on profiling the XEN guest VMs. I have installed XEN Hypervisor on AMD-64 machine and then I created a VM which is running debian Lenny operating system.

I am interested in looking at the CPU time and the # of instructions executed by any module. I don't know exactly which events should cover these.

I tried to run XenOprofile as follows

dom0> opcontrol --reset

dom0> opcontrol --start-daemon --event=CPU_IO_REQUESTS_TO_MEMORY_IO:1000000
--xen=/boot/xen-syms-3.4.1 –vmlinux=/boot/vmlinux
--passive-domains=1 --passive-images=/boot/vmlinux

dom0> opcontrol --start

Benchmark start/finish

dom0> opcontrol --stop


Opreport -l gives the following warning


ah@hactar-03:~$ opreport -l
opreport error: No sample file found: try running opcontrol --dump
or specify a session containing sample files


where as cat /var/lib/oprofile/samples/oprofiled.log  returns this:


---- Statistics for cpu : 1
Nr. samples lost cpu buffer overflow: 0
Nr. samples received: 0
Nr. backtrace aborted: 0
Nr. samples lost invalid pc: 0

---- Statistics for cpu : 0
Nr. samples lost cpu buffer overflow: 0
Nr. samples received: 0
Nr. backtrace aborted: 0
Nr. samples lost invalid pc: 0

.......repeated



Please help if some one used xenoprof for profiling. Thanks.

Best Regards, Hassan

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

 


Rackspace

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