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From: Karim Yaghmour <karim@opersys.com>
To: grundig <grundig@teleline.es>
Cc: "Martin J. Bligh" <mbligh@mbligh.org>,
	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 15:21:02 -0400	[thread overview]
Message-ID: <4509AB9E.2090909@opersys.com> (raw)
In-Reply-To: <20060914210307.2cd10da4.grundig@teleline.es>


grundig wrote:
> IOW, no distro will enable it by default to avoid the overhead,

Please bear in mind that this is an implementation issue. As I've
explained elsewhere, there are ways to implement this where even
compiled-in static tracepoints have practically no cost at all
-- being noops until enabling. Thereby being no justification for
not actually shipping with such built kernels and, therefore,
no reason why tools such as ltt can't real-world usage.

Karim


  reply	other threads:[~2006-09-14 19:11 UTC|newest]

Thread overview: 284+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-14  3:38 [PATCH 0/11] LTTng-core (basic tracing infrastructure) 0.5.108 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
2006-09-14 19:21       ` Karim Yaghmour [this message]
2006-09-14 19:48     ` Frank Ch. Eigler
2006-09-15 16:32       ` Jose R. Santos
2006-09-19 11:59   ` Christoph Hellwig
  -- strict thread matches above, loose matches on Subject: below --
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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