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From: Hagen Paul Pfeifer <hagen@jauu.net>
To: Ed W <lists@wildgooses.com>
Cc: David Miller <davem@davemloft.net>,
	rick.jones2@hp.com, davidsen@tmr.com,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: Raise initial congestion window size / speedup slow start?
Date: Thu, 15 Jul 2010 01:01:00 +0200	[thread overview]
Message-ID: <20100714230100.GL6682@nuttenaction> (raw)
In-Reply-To: <4C3E3F92.2090506@wildgooses.com>

* Ed W | 2010-07-14 23:52:02 [+0100]:

>Out of curiousity, why has it taken so long for active feedback to
>appear?  If every router simply added a hint to the packet as to the
>max bandwidth it can offer then we would appear to be able to make
>massively better decisions on window sizes.  Furthermore routers have
>the ability to put backpressure on classes of traffic as appropriate.
>I guess the speed at which ECN has been adopted answers the question
>of why nothing more exotic has appeared?

It is quite late here so I will quickly write two sentence about ECN: one
month ago Lars Eggers posted a link at the tcpm maillinglist where google (not
really sure if it was google) analysed the employment of ECN - the usage was
really low. Search the PDF, it is quite interesting one.

Hagen



  reply	other threads:[~2010-07-14 23:01 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <4C3D94E3.9080103@wildgooses.com>
     [not found] ` <4C3DD5EB.9070908@tmr.com>
2010-07-14 18:15   ` Raise initial congestion window size / speedup slow start? David Miller
2010-07-14 18:48     ` Ed W
2010-07-14 19:10       ` Stephen Hemminger
2010-07-14 21:47         ` Mitchell Erblich
2010-07-14 20:17       ` Rick Jones
2010-07-14 20:39         ` Hagen Paul Pfeifer
2010-07-14 21:55           ` David Miller
2010-07-14 22:13             ` Hagen Paul Pfeifer
2010-07-14 22:19               ` Rick Jones
2010-07-14 22:40                 ` Hagen Paul Pfeifer
2010-07-14 22:52               ` Ed W
2010-07-14 23:01                 ` Hagen Paul Pfeifer [this message]
2010-07-14 23:05                   ` Ed W
2010-07-15  3:49               ` Bill Fink
2010-07-15  5:29                 ` H.K. Jerry Chu
2010-07-15 19:51                   ` Rick Jones
2010-07-15 20:48                     ` Stephen Hemminger
2010-07-16  0:23                       ` H.K. Jerry Chu
2010-07-16  9:03                 ` Hagen Paul Pfeifer
2010-07-15 10:33               ` Alan Cox
2010-07-14 22:05           ` Ed W
2010-07-14 22:36             ` Hagen Paul Pfeifer
2010-07-14 23:01               ` Ed W
2010-07-15  4:12           ` Tom Herbert
2010-07-15  7:48             ` Ed W
2010-07-15 17:36               ` Jerry Chu
2010-07-15  5:09           ` H.K. Jerry Chu
2010-07-15  2:52     ` Bill Fink
2010-07-15  4:51     ` H.K. Jerry Chu
2010-07-16 17:01       ` Patrick McManus
2010-07-16 17:41         ` Ed W
2010-07-17  1:23           ` H.K. Jerry Chu
2010-07-17  0:36         ` H.K. Jerry Chu
2010-07-19 17:08           ` Rick Jones
2010-07-19 22:51             ` H.K. Jerry Chu
2010-07-19 23:42               ` Hagen Paul Pfeifer
2010-07-15 23:14     ` Bill Davidsen

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