linux-kernel - Re: [PATCH 2/8] tracing: create automated trace defines

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Message-ID: <87zlebpzmk.fsf@basil.nowhere.org>
Date:	Mon, 20 Apr 2009 09:12:35 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Mathieu Desnoyers <compudj@...stal.dyndns.org>
Cc:	Jeremy Fitzhardinge <jeremy@...p.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Theodore Tso <tytso@....edu>,
	Arjan van de Ven <arjan@...radead.org>,
	Christoph Hellwig <hch@....de>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Zhaolei <zhaolei@...fujitsu.com>, Li Zefan <lizf@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	"Frank Ch. Eigler" <fche@...stic.org>,
	Tom Zanussi <tzanussi@...il.com>,
	Jiaying Zhang <jiayingz@...gle.com>,
	Michael Rubin <mrubin@...gle.com>,
	Martin Bligh <mbligh@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Neil Horman <nhorman@...driver.com>,
	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>,
	Pekka@...stfloor.org
Subject: Re: [PATCH 2/8] tracing: create automated trace defines

Mathieu Desnoyers <compudj@...stal.dyndns.org> writes:

> Given how slow function calls are, at least on x86,

That was with frame pointers right? Frame pointers tend to make
function calls slow.

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only.
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