From owner-freebsd-net@FreeBSD.ORG Wed Oct 11 17:35:33 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8F3AF16A659 for ; Wed, 11 Oct 2006 17:35:33 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost2.sentex.ca (smarthost2.sentex.ca [205.211.164.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id CDBEC44157 for ; Wed, 11 Oct 2006 17:29:13 +0000 (GMT) (envelope-from mike@sentex.net) Received: from BLUELAPIS.sentex.ca (cage.simianscience.com [64.7.134.1]) by smarthost2.sentex.ca (8.13.8/8.13.8) with SMTP id k9BHStVG026951; Wed, 11 Oct 2006 13:28:55 -0400 (EDT) (envelope-from mike@sentex.net) From: Mike Tancsa To: Danny Braniss Date: Wed, 11 Oct 2006 13:28:58 -0400 Message-ID: References: In-Reply-To: X-Mailer: Forte Agent 1.93/32.576 English (American) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Cc: freebsd-net@freebsd.org Subject: Re: em blues X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Oct 2006 17:35:33 -0000 On Wed, 11 Oct 2006 16:06:17 +0200, in sentex.lists.freebsd.net you wrote: >the box is a bit old (Intel Pentium III (933.07-MHz 686-class CPU) >dual cpu. > >running iperf -c (receiving): > >freebsd-4.10 0.0-10.0 sec 936 MBytes 785 Mbits/sec >freebsd-5.4 0.0-10.0 sec 413 MBytes 346 Mbits/sec >freebsd.6.1 0.0-10.0 sec 366 MBytes 307 Mbits/sec >freebsd-6.2 0.0-10.0 sec 344 MBytes 289 Mbits/sec > >btw, iperf -s (xmitting) is slightly better >freebsd-4.10 0.0-10.0 sec 664 MBytes 558 Mbits/sec >freebsd-5.4 0.0-10.0 sec 390 MBytes 327 Mbits/sec >freebsd-6.1 0.0-10.0 sec 495 MBytes 415 Mbits/sec >freebsd-6.2 0.0-10.0 sec 487 MBytes 408 Mbits/sec > >so, it seems that as the release number increases, the em >throughput gets worse - or iperf is. Hi, What is your setup for testing ? For me, with a couple of em NICs back to back I get iperf -c 1.1.1.2 ------------------------------------------------------------ Client connecting to 1.1.1.2, TCP port 5001 TCP window size: 32.5 KByte (default) ------------------------------------------------------------ [ 3] local 1.1.1.1 port 57584 connected with 1.1.1.2 port 5001 [ 3] 0.0-10.0 sec 1.06 GBytes 914 Mbits/sec 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Mon Oct 9 23:22:10 EDT 2006 One is a Pentium(R) 4 CPU 3.00GHz and the other an AMD 3800 X2 Going the other way is about the same (900Mb) ---Mike > >danny > > >_______________________________________________ >freebsd-net@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-net >To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" -------------------------------------------------------- Mike Tancsa, Sentex communications http://www.sentex.net Providing Internet Access since 1994 mike@sentex.net, (http://www.tancsa.com)