From: Dave Jones <davej@redhat.com>
To: Albert Cahalan <albert@users.sourceforge.net>
Cc: linux-kernel mailing list <linux-kernel@vger.kernel.org>,
davem@redhat.com, Linus Torvalds <torvalds@osdl.org>
Subject: Re: Intel vs AMD x86-64
Date: Tue, 24 Feb 2004 17:34:44 +0000 [thread overview]
Message-ID: <20040224173444.GL11203@redhat.com> (raw)
In-Reply-To: <1077635481.8120.300.camel@cube>
On Tue, Feb 24, 2004 at 10:11:22AM -0500, Albert Cahalan wrote:
> > so this isn't possible. The amd64 GART driver goes to great
> > lengths to make sure it does update the northbridges on every
> > CPU whenever something changes.
>
> Of course. That's the easy way; you won't need
> to worry about memory interleave or out-of-bounds
> prefetch if you keep everything coherent.
>
> I'm just saying it would be neat, and potentially
> useful, to intentionally violate this. Of greatest
> interest would be the 2-way Opteron boards that
> only have RAM connected to the CPU closest to PCI.
> The sidecar CPU :-) could be ignored.
Why on earth would you want to do that ?
It wouldn't buy you anything at all other than a world of pain.
Dave
next prev parent reply other threads:[~2004-02-24 17:37 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-24 2:42 Intel vs AMD x86-64 Albert Cahalan
2004-02-24 16:44 ` Dave Jones
2004-02-24 15:11 ` Albert Cahalan
2004-02-24 17:34 ` Dave Jones [this message]
2004-02-24 15:29 ` Albert Cahalan
2004-02-24 18:07 ` Dave Jones
-- strict thread matches above, loose matches on Subject: below --
2004-03-02 23:22 Nakajima, Jun
2004-02-26 1:19 Nakajima, Jun
2004-02-26 16:04 ` Timothy Miller
2004-02-27 3:16 ` Bill Davidsen
2004-02-25 20:07 Nakajima, Jun
2004-02-25 23:44 ` Timothy Miller
2004-02-26 0:13 ` H. Peter Anvin
[not found] <1sRYA-1uZ-23@gated-at.bofh.it>
[not found] ` <1sSi2-1NC-5@gated-at.bofh.it>
[not found] ` <1sT4l-2CW-17@gated-at.bofh.it>
2004-02-25 15:41 ` Bill Davidsen
2004-02-25 16:08 ` Moritz Muehlenhoff
2004-02-25 3:24 Nakajima, Jun
2004-02-25 16:22 ` Timothy Miller
2004-02-25 16:17 ` H. Peter Anvin
2004-02-25 17:18 ` Timothy Miller
2004-02-25 17:16 ` H. Peter Anvin
2004-02-25 19:05 ` Timothy Miller
2004-02-25 3:07 Nakajima, Jun
[not found] <7F740D512C7C1046AB53446D37200173EA2684@scsmsx402.sc.intel.com.suse.lists.linux.kernel>
2004-02-24 23:49 ` Andi Kleen
2004-02-24 23:15 Nakajima, Jun
2004-02-25 1:52 ` Chris Wedgwood
2004-02-24 21:01 Sean Fao
2004-02-24 21:26 ` Linus Torvalds
2004-02-24 22:21 ` Timothy Miller
2004-02-25 22:30 ` Davide Rossetti
2004-02-24 21:31 ` Timothy Miller
2004-02-24 21:31 ` Linus Torvalds
2004-02-24 21:28 ` Dave Jones
2004-02-26 21:39 ` Kai Henningsen
2004-02-23 19:59 Xose Vazquez Perez
2004-02-23 18:10 Nakajima, Jun
2004-02-24 13:25 ` Pavel Machek
2004-02-18 21:28 Peter Maas
2004-02-18 21:26 Peter Maas
2004-02-18 1:44 Linus Torvalds
2004-02-18 9:56 ` Mikael Pettersson
2004-02-18 14:31 ` Diego Calleja García
2004-02-18 18:17 ` Bryan O'Sullivan
2004-02-18 14:54 ` Stefan Smietanowski
2004-02-18 15:47 ` Linus Torvalds
2004-02-22 2:59 ` Herbert Poetzl
2004-02-22 3:12 ` Linus Torvalds
2004-02-22 3:39 ` Tomasz Rola
2004-02-22 3:47 ` Mike Fedyk
2004-02-22 4:12 ` Scott Robert Ladd
2004-02-23 0:38 ` Timothy Miller
2004-02-23 2:17 ` Tom Vier
2004-02-22 8:38 ` Geert Uytterhoeven
2004-02-22 10:00 ` Vojtech Pavlik
2004-02-23 15:51 ` Clay Haapala
2004-02-23 17:03 ` Adrian Bunk
2004-02-23 17:31 ` Linus Torvalds
2004-02-24 9:47 ` Kees Bakker
2004-02-24 9:59 ` viro
2004-02-24 10:59 ` Andrew Walrond
2004-02-23 18:56 ` Christoph Hellwig
2004-02-23 21:25 ` Rik van Riel
2004-02-23 21:36 ` Linus Torvalds
2004-02-23 21:48 ` David S. Miller
2004-02-23 22:08 ` Linus Torvalds
2004-02-23 22:06 ` David S. Miller
2004-02-23 22:56 ` H. Peter Anvin
2004-02-24 1:01 ` Thomas Zehetbauer
2004-02-24 1:11 ` John Heil
2004-02-24 13:32 ` Timothy Miller
2004-02-24 14:39 ` Scott Robert Ladd
2004-02-24 19:43 ` Rogier Wolff
2004-02-24 19:49 ` John Heil
2004-02-24 20:03 ` Mike Fedyk
2004-02-24 20:03 ` John Heil
2004-02-24 21:20 ` Timothy Miller
2004-02-25 18:40 ` Matt Seitz
2004-02-18 19:13 ` Aaron Lehmann
2004-02-19 6:02 ` Mikael Pettersson
2004-02-19 9:15 ` Terje Eggestad
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