From owner-freebsd-performance@FreeBSD.ORG Fri Apr 22 16:06:47 2005 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 762A516A4CE for ; Fri, 22 Apr 2005 16:06:47 +0000 (GMT) Received: from mh2.centtech.com (moat3.centtech.com [207.200.51.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1A30F43D48 for ; Fri, 22 Apr 2005 16:06:46 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from [10.177.171.220] (neutrino.centtech.com [10.177.171.220]) by mh2.centtech.com (8.13.1/8.13.1) with ESMTP id j3MG6ivU071696; Fri, 22 Apr 2005 11:06:45 -0500 (CDT) (envelope-from anderson@centtech.com) Message-ID: <426920E5.4070806@centtech.com> Date: Fri, 22 Apr 2005 11:05:57 -0500 From: Eric Anderson User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.5) Gecko/20050325 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Sean References: <136272710504220832793dfc3d@mail.gmail.com> In-Reply-To: <136272710504220832793dfc3d@mail.gmail.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-performance@freebsd.org Subject: Re: Channel bonding. X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Apr 2005 16:06:47 -0000 Sean wrote: > I've been experimenting with the idea of doing channel bonding as a > means of improving the performance of some heavily used file servers. > Currently I am using a single Intel 1000MT interface on each file > server and it has rather lack luster performance. [..snip..] > In case anyone has any ideas I've included the 'specs' of the hardware > below. > > Hardware: > Dual Intel Xeon CPU 2.66GHz > Intel Server SE7501BR2 Motherboard > 2X 512 MB Registered ECC DDR RAM > 3ware 7500-12 (12x120GB, RAID-5) > Intel PRO/1000 MT Dual Port (em0,1) > Intel PRO/1000 MT (On board) (em2) > > Switch: > Extreme Black Diamond 6800 > Gigabit Blade: G24T^3 51052 [..snip..] Are the gig nics in 64bit slots? 32bit slots can slow you down a bunch. Also, I've seen some cases where the PCI bus itself is the bottleneck with multiple high-IO boards installed on the same bus. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology A lost ounce of gold may be found, a lost moment of time never. ------------------------------------------------------------------------