From owner-freebsd-hackers@FreeBSD.ORG Tue May 30 20:42:17 2006 Return-Path: X-Original-To: hackers@freebsd.org Delivered-To: freebsd-hackers@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3AFCE16B3AA for ; Tue, 30 May 2006 20:42:17 +0000 (UTC) (envelope-from mwm-keyword-freebsdhackers2.e313df@mired.org) Received: from mired.org (vpn.mired.org [66.92.153.74]) by mx1.FreeBSD.org (Postfix) with SMTP id 8DADC43D67 for ; Tue, 30 May 2006 20:42:13 +0000 (GMT) (envelope-from mwm-keyword-freebsdhackers2.e313df@mired.org) Received: (qmail 98335 invoked by uid 1001); 30 May 2006 20:42:12 -0000 Received: by bhuda.mired.org (tmda-sendmail, from uid 1001); Tue, 30 May 2006 16:42:12 -0400 (EDT) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17532.44580.352702.492478@bhuda.mired.org> Date: Tue, 30 May 2006 16:42:12 -0400 To: luke@foolishgames.com In-Reply-To: <1225.141.218.159.32.1149020799.squirrel@www.foolishgames.com> References: <17532.42196.508218.964130@bhuda.mired.org> <1225.141.218.159.32.1149020799.squirrel@www.foolishgames.com> X-Mailer: VM 7.17 under 21.4 (patch 19) "Constant Variable" XEmacs Lucid X-Primary-Address: mwm@mired.org X-face: "5Mnwy%?j>IIV\)A=):rjWL~NB2aH[}Yq8Z=u~vJ`"(,&SiLvbbz2W`; h9L,Yg`+vb1>RG% *h+%X^n0EZd>TM8_IB;a8F?(Fb"lw'IgCoyM.[Lg#r\ X-Delivery-Agent: TMDA/1.0.3 (Seattle Slew) From: Mike Meyer Cc: hackers@freebsd.org Subject: Re: Asymmetric ethernet throughput? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 May 2006 20:42:21 -0000 In <1225.141.218.159.32.1149020799.squirrel@www.foolishgames.com>, Lucas Holt typed: > Does disabling net.inet.tcp.inflight.enable make any difference? I've > noticed strange transfer speed differences between a samba server on > freebsd 6.1 and OS 10.4.6 clients and Windows. > > With these set in /etc/sysctl.conf, I can get reasonable speeds on both > the macs and windows box. > net.inet.tcp.delayed_ack=0 > net.inet.tcp.inflight.enable=0 Well, it makes the throughput closer to symmetric when I'm pushing traffic both ways - but at around 7MB/sec. If I only run traffic in one direction, I get the previous behavior. I tried it from the 6.1 system to the 5.5 system. It's not quite so out of whack - 2:1 instead of 3:1 - but those two sysctls don't make any difference. Thanks, http://www.mired.org/consulting.html Independent Network/Unix/Perforce consultant, email for more information.