From: grundig <grundig@teleline.es>
To: "Martin J. Bligh" <mbligh@mbligh.org>
Cc: mingo@elte.hu, mathieu.desnoyers@polymtl.ca,
linux-kernel@vger.kernel.org, hch@infradead.org, akpm@osdl.org,
mingo@redhat.com, gregkh@suse.de, tglx@linutronix.de,
zanussi@us.ibm.com, ltt-dev@shafik.org,
michel.dagenais@polymtl.ca
Subject: Re: [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108
Date: Thu, 14 Sep 2006 21:03:12 +0200 (added by postmaster@terra.es) [thread overview]
Message-ID: <20060914210307.2cd10da4.grundig@teleline.es> (raw)
In-Reply-To: <450971CB.6030601@mbligh.org>
El Thu, 14 Sep 2006 08:14:19 -0700,
"Martin J. Bligh" <mbligh@mbligh.org> escribió:
> 2. You can get zero overhead by CONFIG'ing things out.
IOW, no distro will enable it by default to avoid the overhead,
making it useless for lots of real-world working systems where
you need to guess what's hapenning to software running real
workloads that can't just be stopped.
I guess there's no problem in having both LTT and Kprobes merged in
the main tree at the same time. But Kprobes + systemtap will get
enabled and used by distros massively just because users can start
using it inmediately, without recompiling or installing extra
kernels and rebooting. There're cases where distros may want to
enable automatic tracing in every boot and only on boot but that
don't like to suffer from an extra performance hit after booting...
I'm not meaning that LTT sucks and doesn't have advantages and that
doesn't deserve being merged/used, it just looks like kprobes+systemtap
will get way more real-world users no matter how much you discuss here
next prev parent reply other threads:[~2006-09-14 19:03 UTC|newest]
Thread overview: 284+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-14 3:38 Mathieu Desnoyers
2006-09-14 11:27 ` Ingo Molnar
2006-09-14 13:40 ` Roman Zippel
2006-09-14 13:55 ` Ingo Molnar
2006-09-14 14:33 ` Roman Zippel
2006-09-14 15:26 ` Michel Dagenais
2006-09-14 17:48 ` Ingo Molnar
2006-09-15 15:04 ` Mathieu Desnoyers
2006-09-14 18:08 ` Nick Piggin
2006-09-14 18:38 ` Karim Yaghmour
2006-09-14 17:13 ` Ingo Molnar
2006-09-14 17:55 ` Roman Zippel
2006-09-14 18:15 ` Ingo Molnar
2006-09-14 18:35 ` Mathieu Desnoyers
2006-09-14 18:54 ` Karim Yaghmour
2006-09-15 9:20 ` Jes Sorensen
2006-09-15 12:38 ` Karim Yaghmour
2006-09-15 12:32 ` Jes Sorensen
2006-09-15 14:09 ` Karim Yaghmour
2006-09-15 14:30 ` Jes Sorensen
2006-09-15 15:12 ` Karim Yaghmour
2006-09-16 10:41 ` Jes Sorensen
2006-09-16 15:28 ` Karim Yaghmour
2006-09-18 8:57 ` Jes Sorensen
2006-09-18 14:48 ` Ingo Molnar
2006-09-18 15:37 ` Karim Yaghmour
2006-09-15 13:20 ` Paul Mundt
2006-09-15 13:41 ` Roman Zippel
2006-09-15 13:44 ` Jes Sorensen
2006-09-15 14:03 ` Roman Zippel
2006-09-15 14:37 ` Alan Cox
2006-09-15 14:34 ` Roman Zippel
2006-09-15 13:57 ` Paul Mundt
2006-09-15 14:17 ` Karim Yaghmour
2006-09-15 14:13 ` Jes Sorensen
2006-09-15 14:31 ` Karim Yaghmour
2006-09-15 14:28 ` Paul Mundt
2006-09-15 14:46 ` Martin J. Bligh
2006-09-15 15:22 ` Alan Cox
2006-09-15 15:47 ` Martin J. Bligh
2006-09-15 14:51 ` Karim Yaghmour
2006-09-15 15:00 ` Thomas Gleixner
2006-09-15 15:28 ` Karim Yaghmour
2006-09-15 18:16 ` Andrew Morton
2006-09-15 18:19 ` Ingo Molnar
2006-09-15 19:26 ` Karim Yaghmour
2006-09-15 19:43 ` Roman Zippel
2006-09-15 20:05 ` Ingo Molnar
2006-09-15 20:22 ` Mathieu Desnoyers
2006-09-15 21:08 ` Jose R. Santos
2006-09-15 21:25 ` Mathieu Desnoyers
2006-09-15 22:02 ` Jose R. Santos
2006-09-15 22:03 ` Ingo Molnar
2006-09-15 22:32 ` Karim Yaghmour
2006-09-15 22:43 ` Ingo Molnar
2006-09-15 23:33 ` Karim Yaghmour
2006-09-15 23:52 ` Ingo Molnar
2006-09-16 2:24 ` Karim Yaghmour
2006-09-15 23:53 ` Ingo Molnar
2006-09-16 2:51 ` Karim Yaghmour
2006-09-15 22:59 ` Frank Ch. Eigler
2006-09-15 23:40 ` Karim Yaghmour
2006-09-15 23:17 ` Jose R. Santos
2006-09-15 21:32 ` Ingo Molnar
2006-09-15 21:58 ` Mathieu Desnoyers
2006-09-15 22:19 ` Ingo Molnar
2006-09-15 22:45 ` Karim Yaghmour
2006-09-16 9:59 ` Jes Sorensen
2006-09-16 17:24 ` Mathieu Desnoyers
2006-09-16 17:35 ` Ingo Molnar
2006-09-16 17:56 ` Mathieu Desnoyers
2006-09-16 19:10 ` Ingo Molnar
2006-09-16 19:37 ` Ingo Molnar
2006-09-16 20:29 ` [patch] kprobes: optimize branch placement Ingo Molnar
2006-09-16 20:43 ` Ingo Molnar
2006-09-16 21:44 ` Karim Yaghmour
2006-09-16 22:57 ` Andrew Morton
2006-09-16 23:24 ` Ingo Molnar
2006-09-17 2:44 ` Karim Yaghmour
2006-09-17 1:59 ` Karim Yaghmour
2006-09-17 12:15 ` Mike Galbraith
2006-09-16 22:56 ` Andrew Morton
2006-09-16 23:30 ` Ingo Molnar
2006-09-18 13:52 ` Ananth N Mavinakayanahalli
2006-09-16 22:55 ` Andrew Morton
2006-09-17 10:13 ` [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 Frederik Deweerdt
2006-09-17 14:00 ` Ingo Molnar
2006-09-16 19:51 ` Karim Yaghmour
2006-09-16 23:40 ` Ingo Molnar
2006-09-17 5:33 ` Mathieu Desnoyers
2006-09-16 18:11 ` Karim Yaghmour
2006-09-16 17:44 ` Ingo Molnar
2006-09-16 18:15 ` Karim Yaghmour
2006-09-18 8:18 ` Jes Sorensen
2006-09-16 17:55 ` Karim Yaghmour
2006-09-18 8:21 ` Jes Sorensen
2006-09-18 8:33 ` Jes Sorensen
2006-09-18 15:01 ` Mathieu Desnoyers
2006-09-16 17:30 ` Mathieu Desnoyers
2006-09-18 8:15 ` Jes Sorensen
2006-09-18 14:53 ` Mathieu Desnoyers
2006-09-18 15:17 ` Ingo Molnar
2006-09-18 16:54 ` Mathieu Desnoyers
2006-09-15 21:12 ` Roman Zippel
2006-09-15 21:08 ` Ingo Molnar
2006-09-15 20:13 ` Andrew Morton
2006-09-15 21:49 ` Jose R. Santos
2006-09-16 10:19 ` Jes Sorensen
2006-09-16 16:05 ` Karim Yaghmour
2006-09-17 4:54 ` Ganesan Rajagopal
2006-09-18 8:13 ` Jes Sorensen
2006-09-18 14:46 ` Mathieu Desnoyers
2006-09-18 17:06 ` Martin Bligh
2006-09-20 14:17 ` Jes Sorensen
2006-09-15 19:35 ` Thomas Gleixner
2006-09-15 19:40 ` Ingo Molnar
2006-09-15 19:56 ` Karim Yaghmour
2006-09-15 20:23 ` Thomas Gleixner
2006-09-15 20:40 ` Roman Zippel
2006-09-15 20:48 ` Ingo Molnar
2006-09-15 21:17 ` Karim Yaghmour
2006-09-15 21:15 ` Ingo Molnar
2006-09-15 21:56 ` Karim Yaghmour
2006-09-15 21:27 ` Roman Zippel
2006-09-15 21:51 ` Ingo Molnar
2006-09-15 22:15 ` Karim Yaghmour
2006-09-15 22:53 ` Roman Zippel
2006-09-15 23:14 ` Ingo Molnar
2006-09-15 23:49 ` Nicholas Miell
2006-09-15 23:57 ` Ingo Molnar
2006-09-16 0:41 ` Nicholas Miell
2006-09-16 0:31 ` Roman Zippel
2006-09-16 8:20 ` Ingo Molnar
2006-09-16 8:21 ` Ingo Molnar
2006-09-16 8:21 ` Ingo Molnar
2006-09-16 8:22 ` Ingo Molnar
2006-09-16 19:58 ` Roman Zippel
2006-09-16 22:50 ` Ingo Molnar
2006-09-16 23:00 ` Ingo Molnar
2006-09-17 1:15 ` Roman Zippel
2006-09-17 8:42 ` Ingo Molnar
2006-09-17 15:16 ` Roman Zippel
2006-09-17 15:25 ` Ingo Molnar
2006-09-17 16:02 ` Roman Zippel
2006-09-17 16:45 ` Ingo Molnar
2006-09-17 16:59 ` Nick Piggin
2006-09-17 17:26 ` Roman Zippel
2006-09-17 17:56 ` Nick Piggin
2006-09-17 18:59 ` Roman Zippel
2006-09-17 21:23 ` Ingo Molnar
2006-09-17 21:52 ` Roman Zippel
2006-09-17 22:27 ` Ingo Molnar
2006-09-17 21:40 ` Ingo Molnar
2006-09-18 8:43 ` Jes Sorensen
2006-09-17 21:32 ` Ingo Molnar
2006-09-17 19:23 ` Ingo Molnar
2006-09-17 19:45 ` Roman Zippel
2006-09-17 20:56 ` Ingo Molnar
2006-09-17 21:36 ` Roman Zippel
2006-09-17 22:13 ` Ingo Molnar
2006-09-16 23:14 ` Ingo Molnar
2006-09-17 14:19 ` Frank Ch. Eigler
2006-09-17 15:31 ` Ingo Molnar
2006-09-17 17:15 ` Mathieu Desnoyers
[not found] ` <y0mu036eglz.fsf@ton.toronto.redhat.com>
2006-09-17 15:00 ` Ingo Molnar
2006-09-16 8:23 ` Ingo Molnar
2006-09-16 8:23 ` Ingo Molnar
2006-09-16 8:23 ` Ingo Molnar
2006-09-15 21:05 ` Karim Yaghmour
2006-09-15 21:17 ` Thomas Gleixner
2006-09-15 21:31 ` Karim Yaghmour
2006-09-15 20:00 ` Mathieu Desnoyers
2006-09-15 20:27 ` Jose R. Santos
2006-09-15 20:37 ` Alan Cox
2006-09-15 20:26 ` Mathieu Desnoyers
2006-09-15 20:51 ` Karim Yaghmour
2006-09-17 17:53 ` Mathieu Desnoyers
2006-09-17 19:35 ` printk instrumentation with LTTng Mathieu Desnoyers
2006-09-15 15:24 ` [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 Alan Cox
2006-09-15 15:23 ` Karim Yaghmour
2006-09-15 14:39 ` Jes Sorensen
2006-09-15 15:04 ` Karim Yaghmour
2006-09-14 19:40 ` Tim Bird
2006-09-14 20:00 ` Ingo Molnar
2006-09-14 20:46 ` Karim Yaghmour
2006-09-19 12:05 ` Christoph Hellwig
2006-09-14 21:02 ` Roman Zippel
2006-09-15 11:40 ` Alan Cox
2006-09-15 11:46 ` Roman Zippel
2006-09-15 12:38 ` Alan Cox
2006-09-15 12:39 ` Roman Zippel
2006-09-15 13:41 ` Alan Cox
2006-09-15 13:34 ` Roman Zippel
2006-09-15 14:41 ` Alan Cox
2006-09-15 14:35 ` Karim Yaghmour
2006-09-15 14:58 ` Alan Cox
2006-09-15 14:57 ` Karim Yaghmour
2006-09-15 17:49 ` Andrew Morton
2006-09-15 18:20 ` Karim Yaghmour
2006-09-15 17:01 ` Tim Bird
2006-09-15 17:08 ` Frank Ch. Eigler
2006-09-15 17:57 ` Andrew Morton
2006-09-15 18:31 ` Alan Cox
2006-09-15 18:12 ` Ingo Molnar
2006-09-15 19:10 ` Roman Zippel
2006-09-15 19:10 ` Ingo Molnar
2006-09-15 20:05 ` Thomas Gleixner
2006-09-15 20:35 ` Roman Zippel
2006-09-15 21:44 ` Tim Bird
2006-09-19 12:29 ` Christoph Hellwig
2006-09-19 13:17 ` Roman Zippel
2006-09-15 18:24 ` Frank Ch. Eigler
2006-09-15 18:23 ` Ingo Molnar
2006-09-15 18:18 ` Martin Bligh
2006-09-15 18:10 ` Jose R. Santos
2006-09-15 19:49 ` Mathieu Desnoyers
2006-09-15 20:54 ` Jose R. Santos
2006-09-15 21:42 ` Karim Yaghmour
2006-09-15 21:46 ` Mathieu Desnoyers
2006-09-19 15:05 ` Jose R. Santos
2006-09-19 15:30 ` Mathieu Desnoyers
2006-09-19 16:39 ` Jose R. Santos
2006-09-19 18:03 ` Mathieu Desnoyers
2006-09-15 17:45 ` Andrew Morton
2006-09-15 18:16 ` Karim Yaghmour
2006-09-15 19:20 ` Jose R. Santos
2006-09-15 19:59 ` Andrew Morton
2006-09-15 20:24 ` Karim Yaghmour
2006-09-15 20:25 ` Thomas Gleixner
2006-09-14 19:47 ` Roman Zippel
2006-09-14 20:24 ` Ingo Molnar
2006-09-14 20:54 ` Roman Zippel
2006-09-14 21:08 ` Daniel Walker
2006-09-14 21:30 ` Roman Zippel
2006-09-14 22:15 ` Ingo Molnar
2006-09-14 23:39 ` Roman Zippel
2006-09-14 23:43 ` Ingo Molnar
2006-09-15 0:27 ` Roman Zippel
2006-09-15 1:47 ` Mathieu Desnoyers
2006-09-15 5:47 ` Vara Prasad
2006-09-14 18:12 ` Karim Yaghmour
2006-09-14 20:25 ` Martin Bligh
2006-09-14 20:34 ` Ingo Molnar
2006-09-14 20:55 ` Martin Bligh
2006-09-14 21:31 ` Ingo Molnar
2006-09-14 22:25 ` Martin Bligh
2006-09-14 22:36 ` Ingo Molnar
2006-09-14 22:59 ` Martin Bligh
2006-09-14 23:19 ` Ingo Molnar
2006-09-15 0:19 ` Nicholas Miell
2006-09-15 1:04 ` Martin J. Bligh
2006-09-15 12:38 ` Ingo Molnar
2006-09-15 7:00 ` Vara Prasad
2006-09-15 15:37 ` Michel Dagenais
2006-09-19 12:08 ` Christoph Hellwig
2006-09-14 21:07 ` Roman Zippel
2006-09-15 9:29 ` Jes Sorensen
2006-09-14 17:51 ` Karim Yaghmour
2006-09-14 15:19 ` Mathieu Desnoyers
2006-09-14 19:39 ` Frank Ch. Eigler
2006-09-15 17:13 ` Jose R. Santos
2006-09-14 15:02 ` Mathieu Desnoyers
2006-09-14 15:14 ` Martin J. Bligh
2006-09-14 17:43 ` Ingo Molnar
2006-09-14 18:25 ` Karim Yaghmour
2006-09-14 20:03 ` Martin Bligh
2006-09-14 20:14 ` Ingo Molnar
2006-09-14 20:40 ` Martin Bligh
2006-09-14 21:05 ` Michel Dagenais
2006-09-14 22:23 ` Ingo Molnar
2006-09-14 22:46 ` Martin Bligh
2006-09-14 22:56 ` Ingo Molnar
2006-09-14 19:03 ` grundig [this message]
2006-09-14 19:21 ` Karim Yaghmour
2006-09-14 19:48 ` Frank Ch. Eigler
2006-09-15 16:32 ` Jose R. Santos
2006-09-19 11:59 ` Christoph Hellwig
2006-09-15 3:10 James Dickens
2006-09-15 9:17 Richard J Moore
2006-09-15 17:14 Chuck Ebbert
2006-09-15 18:32 ` Alan Cox
2006-09-16 10:46 ` Jes Sorensen
2006-09-25 15:20 Chuck Ebbert
2006-09-25 15:39 ` Ingo Molnar
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