From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Heffner Subject: Re: Question on TSO maximum segment sizes. Date: Thu, 11 Oct 2007 18:22:57 -0700 Message-ID: <470ECC71.1070303@psc.edu> References: <20071011.163737.36654032.davem@davemloft.net><470EB6D6.9020704@hp.com> <20071011.170244.32082446.davem@davemloft.net> <470EBD2C.8020704@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Ben Greear Return-path: Received: from mailer2.psc.edu ([128.182.66.106]:54652 "EHLO mailer2.psc.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753638AbXJLBXL (ORCPT ); Thu, 11 Oct 2007 21:23:11 -0400 In-Reply-To: <470EBD2C.8020704@candelatech.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Ben Greear wrote: > I just tried turning off my explicit SO_SNDBUF/SO_RCVBUG settings in my > app, > and the connection ran very poorly through a link with even a small > bit of latency (~2-4ms I believe). I often run at full gigabit or faster with latencies of 100+ ms. Can you give a bit more detail? -John