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Date: Wed, 19 Aug 2009 22:36:42 +1000
From: Paul Mackerras <paulus@samba.org>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>, Arnaldo Carvalho de Melo <acme@redhat.com>,
       Frederic Weisbecker <fweisbec@gmail.com>,
       Mike Galbraith <efault@gmx.de>, linux-kernel@vger.kernel.org,
       stephane eranian <eranian@googlemail.com>
Subject: Re: [PATCH 4/4][RFC] perf_counter: Allow sharing of output channels
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	<20090819092023.980284148@chello.nl>
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Peter Zijlstra writes:

> Provide the ability to configure a counter to send its output to
> another (already existing) counter's output stream.

What sort of thing might this be useful for?

Does this only apply to sampling counters?

Paul.