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From: Karim Yaghmour <karim@opersys.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
	Jes Sorensen <jes@sgi.com>, Roman Zippel <zippel@linux-m68k.org>,
	Andrew Morton <akpm@osdl.org>,
	tglx@linutronix.de, Paul Mundt <lethal@linux-sh.org>,
	linux-kernel@vger.kernel.org,
	Christoph Hellwig <hch@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Greg Kroah-Hartman <gregkh@suse.de>,
	Tom Zanussi <zanussi@us.ibm.com>,
	ltt-dev@shafik.org, Michel Dagenais <michel.dagenais@polymtl.ca>,
	fche@redhat.com
Subject: Re: [patch] kprobes: optimize branch placement
Date: Sat, 16 Sep 2006 17:44:25 -0400	[thread overview]
Message-ID: <450C7039.20208@opersys.com> (raw)
In-Reply-To: <20060916204342.GA5208@elte.hu>


Ingo Molnar wrote:
> the 3 speedups i did today eliminated 63% of the kprobes overhead in 
> this test.
> 
> this too shows that there's lots of performance potential even in 
> INT3-based kprobes.

So now you're resorting to your uber-talents as a kernel guru to bury
the other side? This attitude, if you permit, I find cowardly and
hypocritical. It renders a huge disservice to kernel developers at
large by making it clear to outside observers that if they do not
curry the favors of key kernel developers or submit material which is
consensual to a given line of thought then they are not welcome.

Keep on at it. The writing is on the wall for those kernel developers
who genuinely wish that outside contributors make an effort in
pushing stuff back into mainline. Keep on at it Ingo. Hack this one
to death. I know of very few people who have your clout or
understanding of the kernel intricacies to match you in such an
arms race.

Go Ingo, Go.

Karim
-- 
President  / Opersys Inc.
Embedded Linux Training and Expertise
www.opersys.com  /  1.866.677.4546

  reply	other threads:[~2006-09-16 21:23 UTC|newest]

Thread overview: 277+ 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 [this message]
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
2006-09-14 19:48     ` Frank Ch. Eigler
2006-09-15 16:32       ` Jose R. Santos
2006-09-19 11:59   ` Christoph Hellwig

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