From mboxrd@z Thu Jan  1 00:00:00 1970
From: Fredrik_Oestman@mentor.com (Oestman, Fredrik)
Date: Fri, 15 Jun 2012 08:23:51 +0000
Subject: [lttng-dev] Prerequsites for adding perf context
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	<4FDAEF5C.9030102@gmail.com>
Message-ID: <524C960C5DFC794E82BE548D825F05CF283461BF@EU-MBX-01.mgc.mentorg.com>

Hi,


What exactly is needed on a system for

# lttng add-context -k -t perf:<something>

to work? Does perf have to be installed?

I have hw perfevents, but not perf, and get

hw perfevents: unable to reserve pmu


cheers,

Fredrik ?stman