linux-kernel - When and how to use ftrace?

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Date:	Wed, 9 Jun 2010 09:38:25 +0800
From:	Ryan Wang <openspace.wang@...il.com>
To:	linux-kernel@...r.kernel.org, kernelnewbies@...linux.org,
	srostedt@...hat.com
Subject: When and how to use ftrace?

Hi all,

       I'm new to kernel development, and I'm learning
ftrace recently. I have one question:
       When to use ftrace, or in which cases ftrace can be
more efficient?

thanks,
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