From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wenji Wu Subject: about Linux adaptivly adjusting ssthresh Date: Wed, 27 Aug 2008 09:38:54 -0500 Message-ID: <000001c90852$a1c19a50$a05ee183@D2GT6T71> References: <1e41a3230804151540i1f7cee4dva6adc6ef25dae546@mail.gmail.com> <20080416.012732.152357000.davem@davemloft.net> <20080416.023551.70464279.davem@davemloft.net> Reply-To: wenji@fnal.gov Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7BIT Cc: johnwheffner@gmail.com, netdev@vger.kernel.org To: 'David Miller' , ilpo.jarvinen@helsinki.fi Return-path: Received: from mailgw1.fnal.gov ([131.225.111.11]:55563 "EHLO mailgw1.fnal.gov" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753605AbYH0PjB (ORCPT ); Wed, 27 Aug 2008 11:39:01 -0400 Received: from mailav2.fnal.gov (mailav2.fnal.gov [131.225.111.20]) by mailgw1.fnal.gov (iPlanet Messaging Server 5.2 HotFix 2.06 (built Mar 28 2005)) with SMTP id <0K69001L2KB540@mailgw1.fnal.gov> for netdev@vger.kernel.org; Wed, 27 Aug 2008 09:39:00 -0500 (CDT) Received: from mailgw2.fnal.gov ([131.225.111.12]) by mailav2.fnal.gov (SAVSMTP 3.1.7.47) with SMTP id M2008082709385911763 for ; Wed, 27 Aug 2008 09:38:59 -0500 Received: from conversion-daemon.mailgw2.fnal.gov by mailgw2.fnal.gov (iPlanet Messaging Server 5.2 HotFix 2.06 (built Mar 28 2005)) id <0K6900A01KLOGF@mailgw2.fnal.gov> (original mail from wenji@fnal.gov) for netdev@vger.kernel.org; Wed, 27 Aug 2008 09:39:00 -0500 (CDT) In-reply-to: Sender: netdev-owner@vger.kernel.org List-ID: Hi, all, Could anybody help me out with Linux adaptively adjusting ssthresh? Thanks in advance. I understand that the latest Linux is able to adaptively adjust ssthresh to avoid retransmission. Could anybody tell me which algorithms have been implemented for the adaptive ssthresh adjust? Thanks, wenji