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[Xen-devel] xenoprof problem

To: Xen devel list <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] xenoprof problem
From: Xin Zhao <zhaoxin@xxxxxxxxxxxxxx>
Date: Tue, 23 May 2006 01:49:59 -0400
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I am using xen-unstable with kernel 2.6.16. I enabled the auditd when compiling kernel. After compile and restart, I did "opcontrol --start" in DomU. But I got the error message as following:

Using default event: GLOBAL_POWER_EVENTS:100000:1:1:1
Using 2.6+ OProfile kernel interface.
Failed to open profile device: Operation not permitted
Couldn't start oprofiled.
Check the log file "/var/lib/oprofile/oprofiled.log" and kernel syslog

Does anyone have similar experience? Is this the right way to profiling the performance in xen systems?

Thanks in advance for your help!


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