From: William Lee Irwin III <wli@holomorphy.com>
To: Rik van Riel <riel@redhat.com>
Cc: "Martin J. Bligh" <mbligh@aracnet.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Bernd Eckenfels <ecki@calista.eckenfels.6bone.ka-ip.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Scaling noise
Date: Thu, 4 Sep 2003 14:30:43 -0700 [thread overview]
Message-ID: <20030904213043.GH4306@holomorphy.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0309041634250.14715-100000@chimarrao.boston.redhat.com>
On Thu, Sep 04, 2003 at 04:36:56PM -0400, Rik van Riel wrote:
> You'll end up with half your accesses being 15 times as
> slow, meaning that your average memory access time is 8
> times as high! Good way to REDUCE performance, but most
> people won't like that...
> If the NUMA factor is low enough that applications can
> treat it like SMP, then the kernel NUMA support won't
> have to be very high either...
This does not hold. The data set is not necessarily where the
communication occurs.
-- wli
next prev parent reply other threads:[~2003-09-04 21:29 UTC|newest]
Thread overview: 154+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-03 4:03 Scaling noise Larry McVoy
2003-09-03 4:12 ` Roland Dreier
2003-09-03 4:20 ` Larry McVoy
2003-09-03 15:12 ` Martin J. Bligh
2003-09-03 4:18 ` Anton Blanchard
2003-09-03 4:29 ` Larry McVoy
2003-09-03 4:33 ` CaT
2003-09-03 5:08 ` Larry McVoy
2003-09-03 5:44 ` Mikael Abrahamsson
2003-09-03 6:12 ` Bernd Eckenfels
2003-09-03 12:09 ` Alan Cox
2003-09-03 15:10 ` Martin J. Bligh
2003-09-03 16:01 ` Jörn Engel
2003-09-03 16:21 ` Martin J. Bligh
2003-09-03 19:41 ` Mike Fedyk
2003-09-03 20:11 ` Martin J. Bligh
2003-09-04 20:36 ` Rik van Riel
2003-09-04 20:47 ` Martin J. Bligh
2003-09-04 21:30 ` William Lee Irwin III [this message]
2003-09-03 8:11 ` Giuliano Pochini
2003-09-03 14:25 ` Steven Cole
2003-09-03 12:47 ` Antonio Vargas
2003-09-03 15:31 ` Steven Cole
2003-09-04 1:50 ` Daniel Phillips
2003-09-04 1:52 ` Larry McVoy
2003-09-04 4:42 ` David S. Miller
2003-09-08 19:40 ` bill davidsen
2003-09-04 2:18 ` William Lee Irwin III
2003-09-04 2:19 ` Steven Cole
2003-09-04 2:35 ` William Lee Irwin III
2003-09-04 2:40 ` Steven Cole
2003-09-04 3:20 ` Nick Piggin
2003-09-04 3:07 ` Daniel Phillips
2003-09-08 19:27 ` bill davidsen
2003-09-08 19:12 ` bill davidsen
2003-09-03 16:37 ` Kurt Wall
2003-09-06 15:08 ` Pavel Machek
2003-09-08 13:38 ` Alan Cox
2003-09-09 6:11 ` Rob Landley
2003-09-09 16:07 ` Ricardo Bugalho
2003-09-10 5:14 ` Rob Landley
2003-09-10 5:45 ` David Mosberger
2003-09-10 10:10 ` Ricardo Bugalho
2003-09-03 6:28 ` Anton Blanchard
2003-09-03 6:55 ` Nick Piggin
2003-09-03 15:23 ` Martin J. Bligh
2003-09-03 15:39 ` Larry McVoy
2003-09-03 15:50 ` Martin J. Bligh
2003-09-04 0:49 ` Larry McVoy
2003-09-04 2:21 ` Daniel Phillips
2003-09-04 2:35 ` Martin J. Bligh
2003-09-04 2:46 ` Larry McVoy
2003-09-04 4:58 ` David S. Miller
2003-09-10 15:47 ` Lock EVERYTHING (for testing) [was: Re: Scaling noise] Timothy Miller
2003-09-04 4:49 ` Scaling noise David S. Miller
2003-09-08 19:50 ` bill davidsen
2003-09-08 23:39 ` Peter Chubb
2003-09-03 17:16 ` William Lee Irwin III
2003-09-03 15:51 ` UP Regression (was) " Cliff White
2003-09-03 17:21 ` William Lee Irwin III
2003-09-03 18:53 ` Cliff White
2003-09-04 0:54 ` Nick Piggin
-- strict thread matches above, loose matches on Subject: below --
2003-09-03 5:02 Samium Gromoff
2003-09-03 7:10 John Bradford
2003-09-03 7:38 ` Mike Fedyk
2003-09-03 11:14 ` Larry McVoy
2003-09-08 20:05 ` bill davidsen
2003-09-03 9:41 Brown, Len
2003-09-03 11:02 ` Geert Uytterhoeven
2003-09-03 11:19 ` Larry McVoy
2003-09-03 11:47 ` Matthias Andree
2003-09-03 18:00 ` William Lee Irwin III
2003-09-03 18:05 ` Larry McVoy
2003-09-03 18:15 ` William Lee Irwin III
2003-09-03 18:15 ` Larry McVoy
2003-09-03 18:26 ` William Lee Irwin III
2003-09-03 18:32 ` Alan Cox
2003-09-03 19:46 ` William Lee Irwin III
2003-09-03 20:13 ` Alan Cox
2003-09-03 20:31 ` William Lee Irwin III
2003-09-03 20:48 ` Martin J. Bligh
2003-09-03 21:21 ` William Lee Irwin III
2003-09-03 21:29 ` Martin J. Bligh
2003-09-03 21:51 ` William Lee Irwin III
2003-09-03 21:46 ` Martin J. Bligh
2003-09-04 0:07 ` Mike Fedyk
2003-09-04 1:06 ` Larry McVoy
2003-09-04 1:10 ` Larry McVoy
2003-09-04 1:32 ` William Lee Irwin III
2003-09-04 1:46 ` David Lang
2003-09-04 1:51 ` William Lee Irwin III
2003-09-04 2:31 ` Martin J. Bligh
2003-09-04 2:40 ` Mike Fedyk
2003-09-04 2:50 ` Martin J. Bligh
2003-09-04 3:49 ` Mike Fedyk
2003-09-04 2:48 ` Steven Cole
2003-09-04 17:05 ` Daniel Phillips
2003-09-07 21:18 ` Eric W. Biederman
2003-09-07 23:07 ` Larry McVoy
2003-09-07 23:47 ` Eric W. Biederman
2003-09-08 0:57 ` Larry McVoy
2003-09-08 3:55 ` Eric W. Biederman
2003-09-08 4:47 ` Stephen Satchell
2003-09-08 5:25 ` Larry McVoy
2003-09-08 8:32 ` Eric W. Biederman
2003-09-04 0:58 ` Larry McVoy
2003-09-04 1:12 ` William Lee Irwin III
2003-09-04 2:49 ` Larry McVoy
2003-09-04 3:15 ` William Lee Irwin III
2003-09-04 3:38 ` Nick Piggin
2003-09-05 1:34 ` Robert White
2003-09-03 19:11 ` Steven Cole
2003-09-03 19:36 ` William Lee Irwin III
[not found] <rx83.88x.5@gated-at.bofh.it>
[not found] ` <rxrp.8wt.1@gated-at.bofh.it>
[not found] ` <rxB3.gg.1@gated-at.bofh.it>
[not found] ` <rxB6.gg.5@gated-at.bofh.it>
[not found] ` <rydL.17V.1@gated-at.bofh.it>
[not found] ` <rGXO.5g9.7@gated-at.bofh.it>
2003-09-03 15:33 ` Ihar 'Philips' Filipau
2003-09-03 17:07 Brown, Len
2003-09-03 17:32 ` Larry McVoy
2003-09-03 18:07 ` William Lee Irwin III
2003-09-03 18:07 ` Larry McVoy
2003-09-03 18:25 ` William Lee Irwin III
2003-09-03 23:47 ` Larry McVoy
2003-09-03 23:52 ` William Lee Irwin III
2003-09-03 23:55 ` Martin J. Bligh
2003-09-03 18:28 ` Valdis.Kletnieks
2003-09-03 18:31 ` Alan Cox
2003-09-03 20:11 ` Diego Calleja García
2003-09-03 18:11 ` Alan Cox
2003-09-03 19:56 ` Daniel Gryniewicz
2003-09-03 18:17 ` Martin J. Bligh
2003-09-04 0:36 ` Larry McVoy
2003-09-04 2:21 ` Martin J. Bligh
2003-09-04 2:34 ` Larry McVoy
2003-09-04 2:48 ` Martin J. Bligh
2003-09-04 3:02 ` Larry McVoy
2003-09-04 3:46 ` Gerrit Huizenga
2003-09-04 4:41 ` Martin J. Bligh
2003-09-10 15:02 ` Timothy Miller
2003-09-10 15:12 ` Larry McVoy
2003-09-28 1:51 ` Paul Jakma
2003-09-28 3:13 ` Steven Cole
2003-09-29 0:47 ` Paul Jakma
2003-10-22 1:22 ` Paul Jakma
2003-10-22 3:46 ` Steven Cole
2003-09-04 3:16 ` David Lang
2003-09-04 3:45 ` William Lee Irwin III
2003-09-04 4:51 ` Martin J. Bligh
2003-09-04 3:47 ` Davide Libenzi
2003-09-04 4:16 ` Larry McVoy
2003-09-04 7:43 ` Davide Libenzi
2003-09-08 6:21 Brown, Len
2003-09-08 9:21 ` Eric W. Biederman
2003-09-10 10:01 John Bradford
2003-09-10 11:35 ` Alan Cox
2003-09-10 13:46 ` Bill Davidsen
2003-09-10 15:14 John Bradford
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