Date: Tue, 26 Feb 2008 09:29:26 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Anton Blanchard <anton@samba.org>, Soeren Sandmann <sandmann@daimi.au.dk>,
       John Levon <levon@movementarian.org>,
       Arjan van de Ven <arjan@infradead.org>, linux-kernel@vger.kernel.org,
       tglx@tglx.de, hpa@zytor.com
Subject: Re: [PATCH] x86: add the debugfs interface for the sysprof tool
Message-Id: <20080226092926.3a72f73b.akpm@linux-foundation.org>
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On Tue, 26 Feb 2008 10:02:23 +0100 Ingo Molnar <mingo@elte.hu> wrote:

> > Anton - who has used oprofile to analyse and tune databases, JVMs,
> > 	compilers and operating systems. Maybe I've been missing out on
> > 	the killer app for all this time!!!
> 
> it's OK if you use it full time and if you are amongst the 0.001% of the 
> developer population we call "the best kernel hackers on the planet" ;-) 
> 
> It sucks badly if you use it occasionally and have to re-learn its 
> non-trivial usage and its quirks every time. As it happens, most 
> userspace developers are in this second category.

Nobody has in any way demonstrated that this is due to the design or
implementation of oprofile's kernel component.
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