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Subject: Re: [PATCH 2/2] perf_counter: add support to the 'perf' tool for
 tracepoints
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Jason Baron <jbaron@redhat.com>
Cc: mingo@elte.hu, linux-kernel@vger.kernel.org, paulus@samba.org,
       rostedt@goodmis.org, fweisbec@gmail.com
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Date: Tue, 07 Jul 2009 10:29:20 +0200
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On Mon, 2009-07-06 at 17:12 -0400, Jason Baron wrote:
> Add support to 'perf list' and 'perf stat' for kernel tracepoints. The
> implementation creates a 'for_each_subsystem' and 'for_each_event' for
> easy iteration over the tracepoints. The debugfs filesystem must be mounted
> at '/sys/kernel/debug'. We can add an optional search path in the future.

I don't have a single machine that has that mount point.