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From: Arjan van de Ven <arjanv@redhat.com>
To: Dan Hollis <goemon@anime.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Athlon bug stomper. Pls apply.
Date: Wed, 19 Sep 2001 19:55:00 +0100	[thread overview]
Message-ID: <3BA8EA04.E55BAA02@redhat.com> (raw)
In-Reply-To: <9oafeu$1o0$1@penguin.transmeta.com> <Pine.LNX.4.30.0109191141560.24917-100000@anime.net>

Dan Hollis wrote:
> 
> On Wed, 19 Sep 2001, Linus Torvalds wrote:
> > It is _probably_ an undocumented performance thing, and clearing that
> > bit may slow something down. But it might also change some behaviour,
> > and knowing _what_ the behaviour is might be very useful for figuring
> > out what it is that triggers the problem.
> 
> AFAIK noone has even tested it yet to see what it does to performance! Eg
> it might slow down memory access so that athlon-optimized memcopy is now
> slower than non-athlon-optimized memcopy. And if it turns out to be the
> case, we might as well just use the non-athlon-optimized memcopy instead
> of twiddling undocumented northbridge bits...

Ok but that part is simple:

run

http://www.fenrus.demon.nl/athlon.c

.....

  reply	other threads:[~2001-09-19 18:55 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-09-18 14:51 [PATCH] Athlon bug stomper. Pls apply VDA
2001-09-18 15:43 ` Alan Cox
2001-09-20  4:56   ` Albert D. Cahalan
2001-09-18 17:45 ` Jeff Garzik
2001-09-18 21:39 ` Liakakis Kostas
2001-09-19 13:08   ` Re[2]: " VDA
2001-09-19 13:41     ` Liakakis Kostas
2001-09-19 13:47       ` Thomas Langås
2001-09-19 14:31         ` Liakakis Kostas
2001-09-19 14:43           ` Stefan Smietanowski
2001-09-19 14:55           ` Re[2]: " Jan Niehusmann
2001-09-19 14:57             ` Liakakis Kostas
2001-09-19 18:12               ` Alan Cox
2001-09-19 21:18                 ` Re[2]: [PATCH] VIA " Aaron Tiensivu
2001-09-19 23:04                   ` Roberto Jung Drebes
2001-09-19 23:41                     ` Nicholas Knight
2001-09-19 16:00             ` Re[2]: [PATCH] Athlon " Linus Torvalds
2001-09-19 17:15               ` safemode
2001-09-19 18:22                 ` Stefan Smietanowski
2001-09-19 23:41                 ` Re[2]: " Nicholas Knight
2001-09-20 15:10                   ` Marek Mentel
2001-09-19 18:43               ` Dan Hollis
2001-09-19 18:55                 ` Arjan van de Ven [this message]
2001-09-19 19:00                   ` Roberto Jung Drebes
2001-09-19 19:17                     ` Arjan van de Ven
2001-09-19 20:16                     ` Dan Hollis
2001-09-19 19:50                   ` Ignacio Vazquez-Abrams
2001-09-19 20:01                     ` Ignacio Vazquez-Abrams
2001-09-19 20:40                       ` Ignacio Vazquez-Abrams
2001-09-19 21:43                         ` safemode
2001-09-19 22:22                           ` Brad Pepers
2001-09-19 22:28                             ` Erno Kuusela
2001-09-19 20:36                   ` Simen Thoresen
2001-09-19 20:37                     ` Dan Hollis
2001-09-19 20:51                       ` Simen Thoresen
2001-09-19 23:00                         ` Roberto Jung Drebes
2001-09-19 20:36                   ` Vojtech Pavlik
2001-09-19 20:57                     ` Dan Hollis
2001-09-19 21:29                       ` Vojtech Pavlik
2001-09-19 23:23                   ` Luigi Genoni
2001-09-20  9:03                   ` VDA
2001-09-19 18:58                 ` Re[2]: " Roberto Jung Drebes
2001-09-19 20:35                 ` Athlon bug stomper: perf. results brian
2001-09-19 20:30                   ` Dan Hollis
2001-09-19 22:14                     ` brian
2001-09-19 22:08                       ` Dan Hollis
2001-09-21  0:46                 ` Re[2]: [PATCH] Athlon bug stomper. Pls apply Pavel Machek
2001-09-20  0:19               ` Nicholas Knight
2001-09-20  1:27                 ` Stefan Smietanowski
2001-09-20  9:54                 ` Re[2]: " Liakakis Kostas
2001-09-19 23:04             ` Luigi Genoni
2001-09-19 14:05       ` Tom Diehl
2001-09-23 23:33 ` Jan Niehusmann
2001-09-24 15:44   ` bill davidsen
  -- strict thread matches above, loose matches on Subject: below --
2001-09-19 21:15 Petr Vandrovec
2001-09-19 19:21 ` Arjan van de Ven
2001-09-19 19:51   ` Dan Hollis
2001-09-19 19:59     ` Arjan van de Ven
2001-09-19 21:44     ` Eric W. Biederman
2001-09-19 22:13       ` Dan Hollis
2001-09-19 22:49         ` John Alvord
2001-09-19 23:14           ` Dan Hollis
2001-09-19 23:32             ` Daniel T. Chen
2001-09-19 22:55         ` Roberto Jung Drebes
2001-09-21 17:22     ` bill davidsen
2001-09-21 19:13       ` Dan Hollis
2001-09-19 20:52 ` Vojtech Pavlik
2001-09-19 23:33 Leif Sawyer
2001-09-20 13:08 Petr Vandrovec

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