From owner-freebsd-net@FreeBSD.ORG Mon Jan 8 05:10:26 2007 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 40F8016A407 for ; Mon, 8 Jan 2007 05:10:26 +0000 (UTC) (envelope-from mallman@icir.org) Received: from pork.ICSI.Berkeley.EDU (pork.ICSI.Berkeley.EDU [192.150.186.19]) by mx1.freebsd.org (Postfix) with ESMTP id 295FC13C442 for ; Mon, 8 Jan 2007 05:10:26 +0000 (UTC) (envelope-from mallman@icir.org) Received: from guns.icir.org (adsl-69-222-35-58.dsl.bcvloh.ameritech.net [69.222.35.58]) by pork.ICSI.Berkeley.EDU (8.12.11.20060308/8.12.11) with ESMTP id l084MEFA005661; Sun, 7 Jan 2007 20:22:14 -0800 Received: from lawyers.icir.org (adsl-69-222-35-58.dsl.bcvloh.ameritech.net [69.222.35.58]) by guns.icir.org (Postfix) with ESMTP id E579D67B3AE; Sun, 7 Jan 2007 23:24:12 -0500 (EST) Received: from lawyers.icir.org (localhost [127.0.0.1]) by lawyers.icir.org (Postfix) with ESMTP id DDDEB15E235; Sun, 7 Jan 2007 23:21:14 -0500 (EST) To: "maillist ifiaas" From: Mark Allman In-Reply-To: <161d69110612112007j5d545b33qd18c6b6306f93bca@mail.gmail.com> Organization: ICSI Center for Internet Research (ICIR) Song-of-the-Day: The Entertainer MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=_bOundary"; micalg=pgp-sha1; protocol="application/pgp-signature" Date: Sun, 07 Jan 2007 23:21:14 -0500 Sender: mallman@icir.org Message-Id: <20070108042114.DDDEB15E235@lawyers.icir.org> Cc: freebsd-net@freebsd.org Subject: Re: TCP payload size and throughput X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: mallman@icir.org List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Jan 2007 05:10:26 -0000 --=_bOundary Content-Type: text/plain Content-Disposition: inline > I know there is some relationship between the packet size and the TCP > throughput. But what if two TCP Sack flows have the same MTU size, > but different header size (hence different payload size) ? Is there > any work that model this issue before? Yeah ... the TCP model that Padhye, et.al. worked out in their 1998 SIGCOMM paper shows that performance is directly proportional to packet size. allman --=_bOundary Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) iD8DBQFFoca6WyrrWs4yIs4RAgzdAJ97Czx7jfgjtz1O0XYryhr2j+bfbQCff32J 67OocBkmQIpbkMP/iaiwN5Q= =uxUt -----END PGP SIGNATURE----- --=_bOundary--