From: mathieu.desnoyers@efficios.com (Mathieu Desnoyers)
Subject: [lttng-dev] Prerequsites for adding perf context
Date: Fri, 15 Jun 2012 11:13:42 -0400 [thread overview]
Message-ID: <20120615151342.GB28295@Krystal> (raw)
In-Reply-To: <524C960C5DFC794E82BE548D825F05CF283461BF@EU-MBX-01.mgc.mentorg.com>
* Oestman, Fredrik (Fredrik_Oestman at mentor.com) wrote:
> 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
CONFIG_PERF_EVENTS. And what version of kernel do you use ?
>
>
> cheers,
>
> Fredrik ?stman
>
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev at lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
--
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
next prev parent reply other threads:[~2012-06-15 15:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-15 7:41 [lttng-dev] lttng - ubuntu 11.10 - problem somanath sahoo
2012-06-15 8:16 ` Francis Giraldeau
2012-06-15 8:23 ` [lttng-dev] Prerequsites for adding perf context Oestman, Fredrik
2012-06-15 15:13 ` Mathieu Desnoyers [this message]
2012-06-15 13:12 ` [lttng-dev] lttng - ubuntu 11.10 - problem David Goulet
2012-06-15 13:51 ` Matthew Khouzam
2012-06-15 15:12 ` Mathieu Desnoyers
2012-06-15 15:32 ` Alexandre Montplaisir
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