From owner-freebsd-stable@FreeBSD.ORG Tue Apr 12 15:35:00 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 753BD106564A for ; Tue, 12 Apr 2011 15:35:00 +0000 (UTC) (envelope-from dan@dan.emsphone.com) Received: from email2.allantgroup.com (email2.emsphone.com [199.67.51.116]) by mx1.freebsd.org (Postfix) with ESMTP id 1DA108FC15 for ; Tue, 12 Apr 2011 15:34:59 +0000 (UTC) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by email2.allantgroup.com (8.14.4/8.14.4) with ESMTP id p3CFLPhI076856 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 12 Apr 2011 10:21:25 -0500 (CDT) (envelope-from dan@dan.emsphone.com) Received: from dan.emsphone.com (smmsp@localhost [127.0.0.1]) by dan.emsphone.com (8.14.4/8.14.4) with ESMTP id p3CFLPLv008704 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 12 Apr 2011 10:21:25 -0500 (CDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.14.4/8.14.4/Submit) id p3CFLO1M008639; Tue, 12 Apr 2011 10:21:24 -0500 (CDT) (envelope-from dan) Date: Tue, 12 Apr 2011 10:21:24 -0500 From: Dan Nelson To: Denny Schierz Message-ID: <20110412152124.GE10022@dan.emsphone.com> References: <1302516039.3223.222.camel@pcdenny> <4DA34331.7000202@tundraware.com> <2C11868B-EE15-4913-A041-E342A387794C@4lin.net> <1302610335.11354.2.camel@pcdenny> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1302610335.11354.2.camel@pcdenny> X-OS: FreeBSD 8.2-PRERELEASE User-Agent: Mutt/1.5.21 (2010-09-15) X-Virus-Scanned: clamav-milter 0.97 at email2.allantgroup.com X-Virus-Status: Clean X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.6 (email2.allantgroup.com [199.67.51.78]); Tue, 12 Apr 2011 10:21:25 -0500 (CDT) X-Scanned-By: MIMEDefang 2.68 on 199.67.51.78 Cc: freebsd-stable Subject: Re: Network throughput: Never =?utf-8?q?get_more_than_112MB/s_?= =?utf-8?b?w7xiZXI=?= two NICs X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Apr 2011 15:35:00 -0000 In the last episode (Apr 12), Denny Schierz said: > Am Montag, den 11.04.2011, 21:52 +0200 schrieb Denny Schierz: > > Am 11.04.2011 um 20:06 schrieb Tim Daneliuk: > > > Are you certain you are not somehow running active-passive instead of > > > active-active ... just a thought... > > > > 150% sure. I used two dedicated NICs WITHOUT any loadbalancing. The sum > > has to be more than 112MB/s. > > it must me the network. I tested two crossover connections and I've got > 220MB/s :-) Check to see whether your switch ports are oversubscribed (common for older blade switches, or very high-density blades); sometimes there will be rectangles enclosing groups of 6-8 ports, which means that they are controlled by a single chip internally. Moving each of your test machines to a separate group may improve your performance. -- Dan Nelson dnelson@allantgroup.com