Re: Single Thread Performance

From	MitchAlsup <MitchAlsup@aol.com>
Newsgroups	comp.arch
Subject	Re: Single Thread Performance
Date	2012-02-14 09:29 -0800
Organization	http://groups.google.com
Message-ID	<12511083.751.1329240598042.JavaMail.geo-discussion-forums@ynt13> (permalink)
References	(7 earlier) <4F392235.1020804@SPAM.comp-arch.net> <16314332.739.1329152301273.JavaMail.geo-discussion-forums@ynnk21> <ae37e65b-43ea-42b6-80cf-d7ba5598bbdc@j14g2000vba.googlegroups.com> <jhclv8$h80$1@usenet01.boi.hp.com> <u5mp09-p191.ln1@ntp6.tmsw.no>

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On Tuesday, February 14, 2012 3:30:05 AM UTC-6, Terje Mathisen wrote:
> Rick Jones wrote:
> > It may not really apply at all, but for some reason the lack of a
> > guarantee of forward progress reminds me of CSMA/CD in Ethernet and
> > "capture effect" which was prevalent before full-duplex became the
> > norm.
> 
> Standard Ethernet has one huge advantage:
> 
> Exponential randomized backoff is part of the spec. As long as everyone 
> implements this you get stable operation and guaranteed forward progress.

Would it not be better if the interface to Ethernet provided the backoff number instead of having to compute it on the fly? Thus, instead of a loop that exponentiates the backoff counter outside a loop that does the waiting, there would only be the waiting loop.

This is why My ASF went to the trouble to build a device to give SW that number.

Mitch

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Single Thread Performance "Unspecified" <partha@perfectvips.com> - 2012-02-04 21:54 +0530
  Re: Single Thread Performance Brett Davis <ggtgp@yahoo.com> - 2012-02-06 05:55 -0600
    Re: Single Thread Performance nmm1@cam.ac.uk - 2012-02-06 13:06 +0000
      Re: Single Thread Performance Robert Myers <rbmyersusa@gmail.com> - 2012-02-06 14:12 -0500
        Re: Single Thread Performance BGB <cr88192@hotmail.com> - 2012-02-06 13:36 -0700
          Re: Single Thread Performance nmm1@cam.ac.uk - 2012-02-06 20:47 +0000
            Re: Single Thread Performance BGB <cr88192@hotmail.com> - 2012-02-06 15:07 -0700
              Re: Single Thread Performance Brett Davis <ggtgp@yahoo.com> - 2012-02-06 16:32 -0600
                Re: Single Thread Performance Robert Wessel <robertwessel2@yahoo.com> - 2012-02-06 17:45 -0600
                Re: Single Thread Performance Brett Davis <ggtgp@yahoo.com> - 2012-02-07 06:01 -0600
                Re: Single Thread Performance BGB <cr88192@hotmail.com> - 2012-02-07 13:32 -0700
                Re: Single Thread Performance timcaffrey@aol.com (Tim McCaffrey) - 2012-02-09 19:08 +0000
                Re: Single Thread Performance BGB <cr88192@hotmail.com> - 2012-02-10 08:56 -0700
        Re: Single Thread Performance nmm1@cam.ac.uk - 2012-02-06 20:42 +0000
          Re: Single Thread Performance Robert Myers <rbmyersusa@gmail.com> - 2012-02-06 19:36 -0500
          Re: Single Thread Performance "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-06 18:28 -0800
            Re: Single Thread Performance Robert Myers <rbmyersusa@gmail.com> - 2012-02-06 22:23 -0500
            Re: Single Thread Performance nmm1@cam.ac.uk - 2012-02-07 06:52 +0000
        Re: Single Thread Performance MitchAlsup <MitchAlsup@aol.com> - 2012-02-06 12:10 -0800
          Re: Single Thread Performance Thomas Womack <twomack@chiark.greenend.org.uk> - 2012-02-07 10:13 +0000
            Re: Single Thread Performance Brett Davis <ggtgp@yahoo.com> - 2012-02-20 23:58 -0600
          Re: Single Thread Performance timcaffrey@aol.com (Tim McCaffrey) - 2012-02-07 17:33 +0000
            Re: Single Thread Performance nedbrek <nedbrek@yahoo.com> - 2012-02-15 08:10 -0500
    Re: Single Thread Performance Robert Myers <rbmyersusa@gmail.com> - 2012-02-06 14:17 -0500
      Re: Single Thread Performance del cecchi <delcecchi@gmail.com> - 2012-02-25 22:07 -0800
    Re: Single Thread Performance jgk@panix.com (Joe keane) - 2012-02-07 17:57 +0000
  Re: Single Thread Performance Quadibloc <jsavard@ecn.ab.ca> - 2012-02-05 13:13 -0800
  Re: Single Thread Performance MitchAlsup <MitchAlsup@aol.com> - 2012-02-05 21:35 -0800
    Re: Single Thread Performance timcaffrey@aol.com (Tim McCaffrey) - 2012-02-07 17:38 +0000
      Re: Single Thread Performance Stephen Sprunk <stephen@sprunk.org> - 2012-02-07 14:54 -0600
        Re: Single Thread Performance timcaffrey@aol.com (Tim McCaffrey) - 2012-02-07 21:33 +0000
          Re: Single Thread Performance Stephen Sprunk <stephen@sprunk.org> - 2012-02-07 23:13 -0600
            Re: Single Thread Performance timcaffrey@aol.com (Tim McCaffrey) - 2012-02-08 18:54 +0000
              Re: Single Thread Performance Stephen Sprunk <stephen@sprunk.org> - 2012-02-08 15:17 -0600
                Re: Single Thread Performance Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-09 08:13 +0100
                Re: Single Thread Performance timcaffrey@aol.com (Tim McCaffrey) - 2012-02-09 17:08 +0000
                Re: Single Thread Performance Stephen Sprunk <stephen@sprunk.org> - 2012-02-09 16:01 -0600
              Re: Single Thread Performance Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-09 07:56 +0100
                Re: Single Thread Performance timcaffrey@aol.com (Tim McCaffrey) - 2012-02-09 17:18 +0000
          Re: Single Thread Performance Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-08 10:17 +0100
        Re: Single Thread Performance Jon <jon@beniston.com> - 2012-02-08 05:32 -0800
      Re: Single Thread Performance MitchAlsup <MitchAlsup@aol.com> - 2012-02-07 16:00 -0800
        Re: Single Thread Performance timcaffrey@aol.com (Tim McCaffrey) - 2012-02-08 18:35 +0000
    Re: Single Thread Performance Partha <parthaspanda22@gmail.com> - 2012-02-10 11:32 -0800
      Re: Single Thread Performance nmm1@cam.ac.uk - 2012-02-10 20:31 +0000
        Re: Single Thread Performance "Unspecified" <partha@perfectvips.com> - 2012-02-11 02:12 +0530
          Re: Single Thread Performance nmm1@cam.ac.uk - 2012-02-10 21:04 +0000
          Re: Single Thread Performance MitchAlsup <MitchAlsup@aol.com> - 2012-02-10 16:43 -0800
            Re: Single Thread Performance "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-10 19:48 -0800
              Re: Single Thread Performance EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-12 14:31 -0500
            Re: Single Thread Performance Stefan Monnier <monnier@iro.umontreal.ca> - 2012-02-12 21:50 -0500
              Re: Single Thread Performance "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-12 19:45 -0800
                Re: Single Thread Performance MitchAlsup <MitchAlsup@aol.com> - 2012-02-12 20:36 -0800
                Re: Single Thread Performance "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-13 06:46 -0800
                Re: Single Thread Performance MitchAlsup <MitchAlsup@aol.com> - 2012-02-13 08:58 -0800
                Re: Single Thread Performance "Paul A. Clayton" <paaronclayton@gmail.com> - 2012-02-13 16:19 -0800
                Re: Single Thread Performance Rick Jones <rick.jones2@hp.com> - 2012-02-14 03:55 +0000
                Re: Single Thread Performance Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-14 10:30 +0100
                Re: Single Thread Performance Andrew Reilly <areilly---@bigpond.net.au> - 2012-02-14 10:49 +0000
                Re: Single Thread Performance Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-14 13:21 +0100
                Re: Single Thread Performance Stephen Fuld <SFuld@alumni.cmu.edu.invalid> - 2012-02-14 13:11 -0800
                Re: Single Thread Performance MitchAlsup <MitchAlsup@aol.com> - 2012-02-14 09:29 -0800
                Re: Single Thread Performance EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-14 12:40 -0500
                Re: Single Thread Performance EricP <ThatWouldBeTelling@thevillage.com> - 2012-02-14 16:12 -0500
                Re: Single Thread Performance Rick Jones <rick.jones2@hp.com> - 2012-02-14 21:14 +0000
                Re: Single Thread Performance Rick Jones <rick.jones2@hp.com> - 2012-02-14 21:16 +0000
                Re: Single Thread Performance Rick Jones <rick.jones2@hp.com> - 2012-02-14 21:09 +0000
                Re: Single Thread Performance MitchAlsup <MitchAlsup@aol.com> - 2012-02-14 09:26 -0800
                Re: Single Thread Performance Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-15 08:44 +0100
                Re: Single Thread Performance "Andy (Super) Glew" <andy@SPAM.comp-arch.net> - 2012-02-15 01:07 -0800
                Re: Single Thread Performance Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-02-14 10:16 +0100
  Re: Single Thread Performance Michael S <already5chosen@yahoo.com> - 2012-02-08 01:04 -0800

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