Re: [PATCH] x86: add the debugfs interface for the sysprof tool

From: Andrew Morton
Date: Tue Feb 26 2008 - 12:32:29 EST


On Tue, 26 Feb 2008 10:02:23 +0100 Ingo Molnar <mingo@xxxxxxx> 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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