linux-kernel - Re: [PATCH 0/2] perf_counter: add tracepoint support

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Message-Id: <1247126283.9777.318.camel@twins>
Date:	Thu, 09 Jul 2009 09:58:03 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Jason Baron <jbaron@...hat.com>, mingo@...e.hu,
	linux-kernel@...r.kernel.org, paulus@...ba.org, rostedt@...dmis.org
Subject: Re: [PATCH 0/2] perf_counter: add tracepoint support

On Thu, 2009-07-09 at 05:10 +0200, Frederic Weisbecker wrote:
> (RFD parenthesis: why not using the one in kernel/trace for all perf events?
> Now that it is lockless, it would fit nicely inside: no fear about NMI
> context).

because that one doesn't have a single-buffer mode you can mmap().

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