From: Ingo Molnar <mingo@elte.hu>
To: Anton Blanchard <anton@samba.org>
Cc: Soeren Sandmann <sandmann@daimi.au.dk>,
John Levon <levon@movementarian.org>,
Andrew Morton <akpm@linux-foundation.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
Date: Tue, 26 Feb 2008 10:02:23 +0100 [thread overview]
Message-ID: <20080226090223.GG9857@elte.hu> (raw)
In-Reply-To: <20080226051307.GC17772@kryten>
* Anton Blanchard <anton@samba.org> wrote:
> This surprises me. Can you please elaborate on why oprofile is "much
> less useful" than sysprof?
see the thread you are replying to.
> 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.
(and i'm not worried about the first category at all - if needed they
can write their own OS from scratch ;-)
Ingo
next prev parent reply other threads:[~2008-02-26 9:03 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-19 20:37 [PATCH] x86: add the debugfs interface for the sysprof tool Arjan van de Ven
2008-02-20 9:10 ` Ingo Molnar
2008-02-26 4:13 ` Anton Blanchard
2008-02-26 8:57 ` Ingo Molnar
2008-02-20 18:16 ` Peter Zijlstra
2008-02-20 18:39 ` Arjan van de Ven
2008-02-20 18:53 ` Peter Zijlstra
2008-02-20 18:58 ` Peter Zijlstra
2008-02-26 5:03 ` Anton Blanchard
2008-02-20 19:26 ` Arjan van de Ven
2008-02-20 20:58 ` Peter Zijlstra
2008-02-20 21:07 ` Arjan van de Ven
2008-02-20 21:44 ` Peter Zijlstra
2008-02-20 22:36 ` Arjan van de Ven
2008-02-23 8:11 ` Andrew Morton
2008-02-23 11:37 ` Ingo Molnar
2008-02-23 13:53 ` John Levon
2008-02-23 15:50 ` Ingo Molnar
2008-02-23 20:15 ` Soeren Sandmann
2008-02-23 20:42 ` Andrew Morton
2008-02-26 5:13 ` Anton Blanchard
2008-02-26 9:02 ` Ingo Molnar [this message]
2008-02-26 17:29 ` Andrew Morton
2008-02-27 14:05 ` Anton Blanchard
2008-02-24 13:10 ` Theodore Tso
2008-02-24 13:44 ` Ingo Molnar
2008-02-24 14:33 ` Ingo Molnar
2008-02-24 16:32 ` John Levon
2008-02-24 18:19 ` Theodore Tso
2008-02-23 18:40 ` Andrew Morton
2008-02-23 11:51 ` Pekka Enberg
2008-02-23 12:22 ` Ingo Molnar
2008-02-23 12:29 ` Pekka Enberg
2008-02-23 18:46 ` Andrew Morton
2008-02-24 2:49 ` Pekka Enberg
2008-02-24 3:12 ` Nicholas Miell
2008-02-26 6:27 ` Pekka Enberg
2008-02-26 6:48 ` Pekka Enberg
2008-02-26 8:55 ` Ingo Molnar
2008-02-23 14:54 ` Pekka Enberg
2008-02-23 19:01 ` Andrew Morton
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