From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Ulrich Drepper <drepper@redhat.com>,
Matti Aarnio <matti.aarnio@zmailer.org>,
Hugh Dickins <hugh@veritas.com>,
Dave Jones <davej@codemonkey.org.uk>, Ingo Molnar <mingo@elte.hu>,
Linux Kernel List <linux-kernel@vger.kernel.org>,
"H. Peter Anvin" <hpa@transmeta.com>
Subject: Re: Intel P6 vs P7 system call performance
Date: 17 Dec 2002 21:34:17 -0800 [thread overview]
Message-ID: <1040189657.1562.11.camel@ixodes.goop.org> (raw)
In-Reply-To: <Pine.LNX.4.44.0212170948380.2702-100000@home.transmeta.com>
On Tue, 2002-12-17 at 09:55, Linus Torvalds wrote:
> Uli, how about I just add one ne warchitecture-specific ELF AT flag, which
> is the "base of sysinfo page". Right now that page is all zeroes except
> for the system call trampoline at the beginning, but we might want to add
> other system information to the page in the future (it is readable, after
> all).
The P4 optimisation guide promises horrible things if you write within
2k of a cached instruction from another CPU (it dumps the whole trace
cache, it seems), so you'd need to be careful about mixing mutable data
and the syscall code in that page.
Immutable data should be fine.
J
next prev parent reply other threads:[~2002-12-18 5:26 UTC|newest]
Thread overview: 304+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-09 8:30 Intel P6 vs P7 system call performance Mike Hayward
2002-12-09 15:40 ` erich
2002-12-09 17:48 ` Linus Torvalds
2002-12-09 19:36 ` Dave Jones
2002-12-09 19:46 ` H. Peter Anvin
2002-12-28 20:37 ` Ville Herva
2002-12-29 2:05 ` Christian Leber
2002-12-30 18:22 ` Christian Leber
2002-12-30 21:22 ` Linus Torvalds
2002-12-30 11:29 ` Dave Jones
2002-12-17 0:47 ` Linus Torvalds
2002-12-17 1:03 ` Dave Jones
2002-12-17 2:36 ` Linus Torvalds
2002-12-17 5:55 ` Linus Torvalds
2002-12-17 6:09 ` Linus Torvalds
2002-12-17 6:18 ` Linus Torvalds
2002-12-19 14:03 ` Shuji YAMAMURA
2002-12-17 6:19 ` GrandMasterLee
2002-12-17 6:43 ` dean gaudet
2002-12-17 16:50 ` Linus Torvalds
2002-12-17 19:11 ` H. Peter Anvin
2002-12-17 21:39 ` Benjamin LaHaise
2002-12-17 21:41 ` H. Peter Anvin
2002-12-17 21:53 ` Benjamin LaHaise
2002-12-18 23:53 ` Pavel Machek
2002-12-19 22:18 ` H. Peter Anvin
2002-12-19 22:21 ` Pavel Machek
2002-12-19 22:23 ` H. Peter Anvin
2002-12-19 22:26 ` Pavel Machek
2002-12-19 22:30 ` H. Peter Anvin
2002-12-19 22:34 ` Pavel Machek
2002-12-19 22:36 ` H. Peter Anvin
2002-12-17 19:12 ` H. Peter Anvin
2002-12-17 19:26 ` Martin J. Bligh
2002-12-17 20:51 ` Alan Cox
2002-12-17 20:16 ` H. Peter Anvin
2002-12-17 20:49 ` Alan Cox
2002-12-17 20:12 ` H. Peter Anvin
2002-12-17 9:45 ` Andre Hedrick
2002-12-17 12:40 ` Dave Jones
2002-12-17 23:18 ` Andre Hedrick
2002-12-17 15:12 ` Alan Cox
2002-12-18 23:55 ` Pavel Machek
2002-12-19 22:17 ` H. Peter Anvin
2002-12-17 10:53 ` Ulrich Drepper
2002-12-17 11:17 ` dada1
2002-12-17 17:33 ` Ulrich Drepper
2002-12-17 17:06 ` Linus Torvalds
2002-12-17 17:55 ` Ulrich Drepper
2002-12-17 18:01 ` Linus Torvalds
2002-12-17 19:23 ` Alan Cox
2002-12-17 18:48 ` Ulrich Drepper
2002-12-17 19:19 ` H. Peter Anvin
2002-12-17 19:44 ` Alan Cox
2002-12-17 19:52 ` Richard B. Johnson
2002-12-17 19:54 ` H. Peter Anvin
2002-12-17 19:58 ` Linus Torvalds
2002-12-18 7:20 ` Kai Henningsen
2002-12-17 18:49 ` Linus Torvalds
2002-12-17 19:09 ` Ross Biro
2002-12-17 21:34 ` Benjamin LaHaise
2002-12-17 21:36 ` H. Peter Anvin
2002-12-17 21:50 ` Benjamin LaHaise
2002-12-18 23:59 ` Pavel Machek
2002-12-17 16:12 ` Hugh Dickins
2002-12-17 16:33 ` Richard B. Johnson
2002-12-17 17:47 ` Linus Torvalds
2002-12-17 16:54 ` Hugh Dickins
2002-12-17 17:07 ` Linus Torvalds
2002-12-17 17:19 ` Matti Aarnio
2002-12-17 17:55 ` Linus Torvalds
2002-12-17 18:24 ` Linus Torvalds
2002-12-17 18:33 ` Ulrich Drepper
2002-12-17 18:30 ` Ulrich Drepper
2002-12-17 19:04 ` Linus Torvalds
2002-12-17 19:19 ` Ulrich Drepper
2002-12-17 19:28 ` Linus Torvalds
2002-12-17 19:32 ` H. Peter Anvin
2002-12-17 19:44 ` Linus Torvalds
2002-12-17 19:53 ` Ulrich Drepper
2002-12-17 20:01 ` Linus Torvalds
2002-12-17 20:17 ` Ulrich Drepper
2002-12-18 4:15 ` Linus Torvalds
2002-12-18 4:15 ` Linus Torvalds
2002-12-18 4:39 ` H. Peter Anvin
2002-12-18 4:49 ` Linus Torvalds
2002-12-18 6:38 ` Linus Torvalds
2002-12-18 13:17 ` Richard B. Johnson
2002-12-18 13:40 ` Horst von Brand
2002-12-18 13:47 ` Sean Neakums
2002-12-18 14:10 ` Horst von Brand
2002-12-18 14:51 ` dada1
2002-12-18 19:12 ` Mark Mielke
2002-12-18 15:52 ` Alan Cox
2002-12-18 16:41 ` Dave Jones
2002-12-18 16:49 ` Freezing.. (was Re: Intel P6 vs P7 system call performance) Linus Torvalds
2002-12-18 16:56 ` Larry McVoy
2002-12-18 16:58 ` Dave Jones
2002-12-18 17:41 ` Linus Torvalds
2002-12-18 18:03 ` Jeff Garzik
2002-12-18 18:09 ` Mike Dresser
2002-12-23 12:34 ` Kai Henningsen
2002-12-18 19:08 ` Alan Cox
2002-12-18 19:23 ` Larry McVoy
2002-12-18 19:30 ` Alan Cox
2002-12-18 19:33 ` Larry McVoy
2002-12-18 19:42 ` Alan Cox
2002-12-18 19:45 ` Larry McVoy
2002-12-18 20:39 ` John Bradford
2002-12-18 22:08 ` Larry McVoy
2002-12-18 22:37 ` John Bradford
2002-12-19 1:09 ` Alan Cox
2002-12-19 0:37 ` Russell King
2002-12-19 0:58 ` Jeff Garzik
2002-12-19 1:43 ` Martin J. Bligh
2002-12-19 10:50 ` Dave Jones
2002-12-19 0:59 ` John Bradford
2002-12-19 10:27 ` Dave Jones
2002-12-19 1:17 ` Linus Torvalds
2002-12-19 0:08 ` Alan Cox
2002-12-19 0:53 ` John Bradford
2002-12-19 13:17 ` Stephen Satchell
2002-12-19 5:34 ` Timothy D. Witham
2002-12-19 6:43 ` Andrew Morton
2002-12-19 5:45 ` Timothy D. Witham
2002-12-19 7:05 ` Martin J. Bligh
2002-12-19 6:08 ` Timothy D. Witham
2002-12-18 19:50 ` Oliver Xymoron
2002-12-18 17:06 ` Eli Carter
2002-12-18 17:08 ` Andrew Morton
2002-12-18 18:25 ` John Alvord
2002-12-18 18:41 ` Intel P6 vs P7 system call performance Horst von Brand
2002-12-17 19:26 ` Alan Cox
2002-12-17 18:57 ` Ulrich Drepper
2002-12-17 19:10 ` Linus Torvalds
2002-12-17 19:21 ` H. Peter Anvin
2002-12-17 19:37 ` Linus Torvalds
2002-12-17 19:43 ` H. Peter Anvin
2002-12-17 20:07 ` Matti Aarnio
2002-12-17 20:10 ` H. Peter Anvin
2002-12-17 19:59 ` Matti Aarnio
2002-12-17 20:06 ` Ulrich Drepper
2002-12-17 20:35 ` Daniel Jacobowitz
2002-12-18 0:20 ` Linus Torvalds
2002-12-18 0:38 ` Ulrich Drepper
2002-12-18 7:41 ` Kai Henningsen
2002-12-18 13:00 ` Rogier Wolff
2002-12-17 19:47 ` Dave Jones
2002-12-18 12:57 ` Rogier Wolff
2002-12-19 0:14 ` Pavel Machek
2002-12-17 21:38 ` Benjamin LaHaise
2002-12-17 21:41 ` H. Peter Anvin
2002-12-17 18:39 ` Jeff Dike
2002-12-17 19:05 ` Linus Torvalds
2002-12-18 5:34 ` Jeremy Fitzhardinge [this message]
2002-12-18 5:38 ` H. Peter Anvin
2002-12-18 15:50 ` Alan Cox
2002-12-18 23:51 ` Pavel Machek
2002-12-13 15:45 ` William Lee Irwin III
2002-12-13 16:49 ` Mike Hayward
2002-12-14 0:55 ` GrandMasterLee
2002-12-14 4:41 ` Mike Dresser
2002-12-14 4:53 ` Mike Dresser
2002-12-14 10:01 ` Dave Jones
2002-12-14 17:48 ` Mike Dresser
2002-12-14 18:36 ` GrandMasterLee
2002-12-15 2:03 ` J.A. Magallon
2002-12-15 21:59 ` Pavel Machek
2002-12-15 22:37 ` William Lee Irwin III
2002-12-15 22:43 ` Pavel Machek
-- strict thread matches above, loose matches on Subject: below --
2003-01-10 18:08 Gabriel Paubert
2002-12-30 13:06 Manfred Spraul
2002-12-30 14:54 ` Andi Kleen
2002-12-22 15:45 Nakajima, Jun
2002-12-22 12:33 Mikael Pettersson
2002-12-22 16:00 ` Jamie Lokier
2002-12-19 18:46 billyrose
2002-12-19 16:10 billyrose
2002-12-19 15:20 bart
2002-12-19 14:57 bart
2002-12-19 14:40 billyrose
2002-12-19 15:11 ` Richard B. Johnson
2002-12-19 13:55 bart
2002-12-19 19:37 ` Linus Torvalds
2002-12-19 22:10 ` Jamie Lokier
2002-12-19 22:16 ` H. Peter Anvin
2002-12-19 22:22 ` Linus Torvalds
2002-12-19 22:26 ` H. Peter Anvin
2002-12-19 22:49 ` Linus Torvalds
2002-12-19 23:30 ` Linus Torvalds
2002-12-22 11:08 ` James H. Cloos Jr.
2002-12-22 18:49 ` Linus Torvalds
2002-12-22 19:07 ` Ulrich Drepper
2002-12-22 19:34 ` Linus Torvalds
2002-12-22 19:51 ` Ulrich Drepper
2002-12-22 20:50 ` James H. Cloos Jr.
2002-12-22 20:56 ` Ulrich Drepper
2002-12-22 19:17 ` Ulrich Drepper
2002-12-20 10:08 ` Ulrich Drepper
2002-12-20 12:06 ` Jamie Lokier
2002-12-20 16:47 ` Linus Torvalds
2002-12-20 23:38 ` Jamie Lokier
2002-12-20 23:50 ` H. Peter Anvin
2002-12-21 0:09 ` Linus Torvalds
2002-12-21 17:18 ` Jamie Lokier
2002-12-21 19:39 ` Linus Torvalds
2002-12-22 2:18 ` Jamie Lokier
2002-12-22 3:11 ` Linus Torvalds
2002-12-22 10:13 ` Ingo Molnar
2002-12-22 15:32 ` Jamie Lokier
2002-12-22 18:53 ` Linus Torvalds
2002-12-23 5:03 ` Linus Torvalds
2002-12-23 7:14 ` Ulrich Drepper
2002-12-23 23:27 ` Petr Vandrovec
2002-12-24 0:22 ` Stephen Rothwell
2002-12-24 4:10 ` Linus Torvalds
2002-12-24 8:05 ` Rogier Wolff
2002-12-24 18:51 ` Linus Torvalds
2002-12-24 21:10 ` Rogier Wolff
2002-12-27 16:14 ` Kai Henningsen
2002-12-24 19:36 ` Linus Torvalds
2002-12-24 20:20 ` Ingo Molnar
2002-12-24 20:27 ` Linus Torvalds
2002-12-24 20:31 ` Ingo Molnar
2002-12-24 20:39 ` Linus Torvalds
2002-12-28 2:05 ` H. Peter Anvin
2002-12-28 2:04 ` H. Peter Anvin
2002-12-26 7:47 ` Pavel Machek
2003-01-10 11:30 ` Gabriel Paubert
2003-01-10 17:11 ` Linus Torvalds
2002-12-22 10:23 ` Ingo Molnar
2002-12-19 13:22 bart
2002-12-19 13:38 ` Dave Jones
2002-12-19 14:22 ` Jamie Lokier
2002-12-19 16:56 ` Dave Jones
2002-12-19 19:29 ` H. Peter Anvin
2002-12-18 23:51 billyrose
2002-12-19 13:10 ` Richard B. Johnson
2002-12-18 12:55 Terje Eggestad
2002-12-18 20:14 ` H. Peter Anvin
2002-12-18 20:25 ` Richard B. Johnson
2002-12-18 20:26 ` H. Peter Anvin
2002-12-18 22:28 ` Jamie Lokier
2002-12-18 22:37 ` Linus Torvalds
2002-12-18 22:57 ` Linus Torvalds
2002-12-20 0:53 ` Daniel Jacobowitz
2002-12-20 1:47 ` Linus Torvalds
2002-12-20 2:37 ` Daniel Jacobowitz
2002-12-18 22:39 ` H. Peter Anvin
2002-12-18 1:30 Nakajima, Jun
2002-12-18 1:54 ` Ulrich Drepper
2002-12-18 3:36 ` H. Peter Anvin
2002-12-18 4:05 ` Linus Torvalds
2002-12-18 4:36 ` H. Peter Anvin
2002-12-18 4:07 ` Linus Torvalds
2002-12-18 4:40 ` Stephen Rothwell
2002-12-18 4:52 ` Linus Torvalds
2002-12-18 4:53 ` Andrew Morton
2002-12-18 19:12 ` Andrew Morton
2002-12-18 23:45 ` Pavel Machek
2002-12-20 3:05 ` Alan Cox
2002-12-20 4:03 ` Stephen Rothwell
2002-12-18 6:00 ` Brian Gerst
2002-12-17 16:32 Manfred Spraul
2002-12-17 17:13 ` Richard B. Johnson
2002-12-17 17:19 ` Richard B. Johnson
2002-12-17 17:37 ` Mikael Pettersson
2002-12-17 16:14 John Reiser
2002-12-17 16:01 John Reiser
[not found] <20021209193649.GC10316@suse.de.suse.lists.linux.kernel>
[not found] ` <Pine.LNX.4.44.0212161639310.1623-100000@penguin.transmeta.com.suse.lists.linux.kernel>
2002-12-17 8:56 ` Andi Kleen
2002-12-17 16:57 ` Linus Torvalds
2002-12-18 5:25 ` Brian Gerst
2002-12-18 6:06 ` Linus Torvalds
2002-12-21 11:24 ` Ingo Molnar
2002-12-21 17:28 ` Jamie Lokier
2002-12-21 16:07 ` Christian Leber
2002-12-15 8:43 scott thomason
2002-12-15 4:06 Albert D. Cahalan
2002-12-15 22:01 ` Pavel Machek
2002-12-16 7:33 ` Albert D. Cahalan
2002-12-16 11:17 ` Pavel Machek
2002-12-16 17:54 ` Mark Mielke
2002-12-16 16:07 ` Jonah Sherman
2002-12-17 4:10 ` David Schwartz
2002-12-17 8:02 ` Helge Hafting
2002-12-16 19:55 ` H. Peter Anvin
2002-12-13 21:52 Margit Schubert-While
2002-12-13 19:32 Dieter Nützel
2002-12-13 17:51 Margit Schubert-While
2002-12-11 12:48 Terje Eggestad
2002-12-11 18:50 ` H. Peter Anvin
2002-12-12 9:42 ` Terje Eggestad
2002-12-12 10:06 ` Arjan van de Ven
2002-12-12 10:31 ` Terje Eggestad
2002-12-12 19:03 ` H. Peter Anvin
2002-12-12 20:36 ` Mark Mielke
2002-12-12 20:56 ` J.A. Magallon
2002-12-12 20:12 ` Zac Hansen
2002-12-13 9:21 ` Terje Eggestad
2002-12-13 15:58 ` Ville Herva
2002-12-13 21:57 ` Terje Eggestad
2002-12-13 22:53 ` H. Peter Anvin
2002-12-12 20:56 ` Vojtech Pavlik
2002-12-09 7:01 Samium Gromoff
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