From: Valdis.Kletnieks@vt.edu
To: Larry McVoy <lm@bitmover.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Scaling noise
Date: Wed, 03 Sep 2003 14:28:57 -0400 [thread overview]
Message-ID: <200309031828.h83ISvgF008722@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Wed, 03 Sep 2003 11:07:55 PDT." <20030903180755.GE5769@work.bitmover.com>
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On Wed, 03 Sep 2003 11:07:55 PDT, Larry McVoy <lm@bitmover.com> said:
> On Wed, Sep 03, 2003 at 11:07:02AM -0700, William Lee Irwin III wrote:
> > You're thinking single-application again. Systems run more than one
> > thing at once.
>
> Then explain why hyperthreading is turned off by default in Windows.
I haven't actually checked, but is it possible that the Windows HT support
suffers from the same scaling issues as the rest of the Windows innards? To
tie this in with what Mike Dell said - perhaps the reason he's selling mostly
1/2/4 CPU boxes is because the dominant operating system blows chunks with
more, and in the common desktop scenario enabling HT was actually slower than
leaving it off?
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next prev parent reply other threads:[~2003-09-03 18:29 UTC|newest]
Thread overview: 149+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-03 17:07 Scaling noise 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 [this message]
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
-- strict thread matches above, loose matches on Subject: below --
2003-09-10 15:14 John Bradford
2003-09-10 10:01 John Bradford
2003-09-10 11:35 ` Alan Cox
2003-09-10 13:46 ` Bill Davidsen
2003-09-08 6:21 Brown, Len
2003-09-08 9:21 ` Eric W. Biederman
[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 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
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 5:02 Samium Gromoff
2003-09-03 4:03 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
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
2003-09-04 4:49 ` 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
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