Re: [tcpm] Increasing the Initial Window - Notes
Joe Touch <touch@isi.edu> Wed, 10 November 2010 17:05 UTC
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Date: Wed, 10 Nov 2010 09:06:03 -0800
From: Joe Touch <touch@isi.edu>
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Cc: tmrg <tmrg-interest@ICSI.Berkeley.EDU>, Matt Mathis <mattmathis@google.com>, tcpm <tcpm@ietf.org>
Subject: Re: [tcpm] Increasing the Initial Window - Notes
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FWIW, I'd like to add another point to the discussion. There has been recent concern with "buffer bloat", where home OS's, home routers, etc. all have either poorly optimized or incomplete implementations of fair queuing and socket buffering. The basic problem can be seen as follows: - run a continuous ping anywhere - start a large upload The latencies go from 10-100 milliseconds up t 0.5-5 seconds. This happens because the outbound buffers get stuffed with data. Although a single connection can cause this to happen (it optimizes for rate, not throughput), we know how to handle that - use RED, fair queuing, etc. I'm wondering if increasing the IW can defeat these corrective measures, and recreate the problem in a way that has no effective solution. Has that been considered? Joe
- [tcpm] Increasing the Initial Window - Notes Hagen Paul Pfeifer
- Re: [tcpm] Increasing the Initial Window - Notes Anantha Ramaiah (ananth)
- Re: [tcpm] Increasing the Initial Window - Notes Hagen Paul Pfeifer
- Re: [tcpm] Increasing the Initial Window - Notes rick jones
- Re: [tcpm] Increasing the Initial Window - Notes Hagen Paul Pfeifer
- Re: [tcpm] Increasing the Initial Window - Notes Joe Touch
- Re: [tcpm] Increasing the Initial Window - Notes Joe Touch
- Re: [tcpm] Increasing the Initial Window - Notes Hagen Paul Pfeifer
- Re: [tcpm] Increasing the Initial Window - Notes rick jones
- Re: [tcpm] Increasing the Initial Window - Notes Joe Touch
- Re: [tcpm] Increasing the Initial Window - Notes Hagen Paul Pfeifer
- Re: [tcpm] Increasing the Initial Window - Notes Yuchung Cheng
- Re: [tcpm] Increasing the Initial Window - Notes Scheffenegger, Richard
- Re: [tcpm] Increasing the Initial Window - Notes Yuchung Cheng
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes Joe Touch
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes Hagen Paul Pfeifer
- Re: [tcpm] Increasing the Initial Window - Notes Hagen Paul Pfeifer
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes Ilpo Järvinen
- Re: [tcpm] Increasing the Initial Window - Notes Hagen Paul Pfeifer
- Re: [tcpm] Increasing the Initial Window - Notes SCHARF, Michael
- Re: [tcpm] Increasing the Initial Window - Notes Michael Welzl
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes Michael Welzl
- Re: [tcpm] Increasing the Initial Window - Notes Lars Eggert
- Re: [tcpm] Increasing the Initial Window - Notes Lars Eggert
- Re: [tcpm] Increasing the Initial Window - Notes Marco Mellia
- Re: [tcpm] Increasing the Initial Window - Notes Michael Welzl
- Re: [tcpm] Increasing the Initial Window - Notes Michael Welzl
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes Michael Welzl
- Re: [tcpm] Increasing the Initial Window - Notes Lars Eggert
- Re: [tcpm] Increasing the Initial Window - Notes Scheffenegger, Richard
- Re: [tcpm] Increasing the Initial Window - Notes Scheffenegger, Richard
- Re: [tcpm] Increasing the Initial Window - Notes Anantha Ramaiah (ananth)
- Re: [tcpm] Increasing the Initial Window - Notes Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… John Heffner
- Re: [tcpm] Increasing the Initial Window - Notes Mark Allman
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes L.Wood
- Re: [tcpm] Increasing the Initial Window - Notes Marco Mellia
- Re: [tcpm] Increasing the Initial Window - Notes L.Wood
- Re: [tcpm] Increasing the Initial Window - Notes Marco Mellia
- Re: [tcpm] Increasing the Initial Window - Notes Scheffenegger, Richard
- Re: [tcpm] Increasing the Initial Window - Notes Marco Mellia
- Re: [tcpm] Increasing the Initial Window - Notes Marco Mellia
- Re: [tcpm] Increasing the Initial Window - Notes Scheffenegger, Richard
- Re: [tcpm] Increasing the Initial Window - Notes rick jones
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Lachlan Andrew
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] Increasing the Initial Window - Notes Aki Nyrhinen
- Re: [tcpm] Increasing the Initial Window - Notes Alexander Zimmermann
- Re: [tcpm] Increasing the Initial Window - Notes Scheffenegger, Richard
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Lachlan Andrew
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Lachlan Andrew
- Re: [tcpm] Increasing the Initial Window - Notes John Heffner
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Fred Baker
- Re: [tcpm] Increasing the Initial Window - Notes Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… L.Wood
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Ilpo Järvinen
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Fred Baker
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Scheffenegger, Richard
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Alexander Zimmermann
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Fred Baker
- Re: [tcpm] Increasing the Initial Window - Notes Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… David Borman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Yuchung Cheng
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jakob Heitz
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… David Borman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jakob Heitz
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… David Borman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… David Borman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Anantha Ramaiah (ananth)
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… David Borman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… John Heffner
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jakob Heitz
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jakob Heitz
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Andrew Yourtchenko
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Andrew Yourtchenko
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Yuchung Cheng
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Andrew Yourtchenko
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Joe Touch
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Mark Allman
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Aki Nyrhinen
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Xiangsong Cui
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Jerry Chu
- Re: [tcpm] [Tmrg] Increasing the Initial Window -… Andrew Yourtchenko