Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757909Ab0GNUqF (ORCPT ); Wed, 14 Jul 2010 16:46:05 -0400 Received: from alternativer.internetendpunkt.de ([88.198.24.89]:44514 "EHLO geheimer.internetendpunkt.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757496Ab0GNUqA (ORCPT ); Wed, 14 Jul 2010 16:46:00 -0400 X-Greylist: delayed 398 seconds by postgrey-1.27 at vger.kernel.org; Wed, 14 Jul 2010 16:46:00 EDT Date: Wed, 14 Jul 2010 22:39:19 +0200 From: Hagen Paul Pfeifer To: Rick Jones Cc: Ed W , David Miller , davidsen@tmr.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: Raise initial congestion window size / speedup slow start? Message-ID: <20100714203919.GD6682@nuttenaction> References: <4C3D94E3.9080103@wildgooses.com> <4C3DD5EB.9070908@tmr.com> <20100714.111553.104052157.davem@davemloft.net> <4C3E0684.5060409@wildgooses.com> <4C3E1B54.40604@hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C3E1B54.40604@hp.com> X-Key-Id: 98350C22 X-Key-Fingerprint: 490F 557B 6C48 6D7E 5706 2EA2 4A22 8D45 9835 0C22 X-GPG-Key: gpg --recv-keys --keyserver wwwkeys.eu.pgp.net 98350C22 User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1252 Lines: 34 * Rick Jones | 2010-07-14 13:17:24 [-0700]: >There is an effort under way, lead by some folks at Google and >including some others, to get the RFC's enhanced in support of the >concept of larger initial congestion windows. Some of the discussion >may be in the "tcpm" mailing list (assuming I've not gotten my >mailing lists confused). There may be some previous discussion of >that work in the netdev archives as well. tcpm is the right mailing list but there is currently no effort to develop this topic. Why? Because is not a standardization issue, rather it is a technical issue. You cannot rise the initial CWND and expect a fair behavior. This was discussed several times and is documented in several documents and RFCs. RFC 5681 Section 3.1. Google employees should start with Section 3. This topic pop's of every two months in netdev and until now I _never_ read a consolidated contribution. Partial local issues can already be "fixed" via route specific ip options - see initcwnd. HGN -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/