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Subject: Re: [PATCH v2][RFC] ftrace: function oprofiler
From: Peter Zijlstra <peterz@infradead.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
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Date: Sun, 26 Oct 2008 11:35:57 +0100
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On Sat, 2008-10-25 at 20:55 -0400, Steven Rostedt wrote:

> This is a function profiler to count the number of times a function is hit.

I have to ask, _why_?

It seems like a nice enough gimmick, but is this information actually
useful?