From owner-freebsd-performance@FreeBSD.ORG Sat Jun 28 16:35:55 2003 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 3609337B401 for ; Sat, 28 Jun 2003 16:35:55 -0700 (PDT) Received: from sabre.velocet.net (sabre.velocet.net [216.138.209.205]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2452F44001 for ; Sat, 28 Jun 2003 16:35:54 -0700 (PDT) (envelope-from dgilbert@velocet.ca) Received: from trooper.velocet.ca (trooper.velocet.net [216.138.242.2]) by sabre.velocet.net (Postfix) with ESMTP id 81696137F8B; Sat, 28 Jun 2003 19:35:47 -0400 (EDT) Received: by trooper.velocet.ca (Postfix, from userid 66) id 99C0674C27; Sat, 28 Jun 2003 19:35:46 -0400 (EDT) Received: by canoe.velocet.net (Postfix, from userid 101) id 0AD0C4AD1; Sat, 28 Jun 2003 19:35:42 -0400 (EDT) From: David Gilbert MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16126.9805.829406.368426@canoe.velocet.net> Date: Sat, 28 Jun 2003 19:35:41 -0400 To: "Ivan Voras" In-Reply-To: <000f01c33dad$1595a0f0$e602a8c0@flatline> References: <20030628190036.0E06B37B405@hub.freebsd.org> <000f01c33dad$1595a0f0$e602a8c0@flatline> X-Mailer: VM 7.14 under 21.4 (patch 12) "Portable Code" XEmacs Lucid cc: freebsd-performance@freebsd.org Subject: Re: Tuning Gigabit 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: Sat, 28 Jun 2003 23:35:55 -0000 >>>>> "Ivan" == Ivan Voras writes: >> Message: 5 Date: Sat, 28 Jun 2003 13:43:46 +0200 From: "Simon >> L. Nielsen" Subject: Re: Tuning Ggiabit >> Message-ID: <20030628114342.GB401@nitro.dk> Content-Type: >> text/plain; charset="us-ascii" >>> I've been trying to get my gigabit link to run as fast as >>> possible, but I have run out of ideas. I've documented (though not >>> very well) what I have done thus far: >>> >>> http://craig.afraid.org/a/b?page=computer/gigabit >>> >>> If there is any more I can do besides what I have already done, I >>> would love to hear it. Please avoid suggestions that require >>> spending money. Ivan> This is probably an obsolete suggestion, but have you increased Ivan> HZ when you turned on NIC polling? (the web page doesn't mention Ivan> it) Unfortunately you may have a motherboard that maxes at 300 megabit. Our recent testing of Gigabit NICs found more than 75% of the motherboards we tried unable to pass more than 500 megabit and 25% of the motherboards wouldn't pass more than 100 megabit. 300 megabit is about where 32bit 33Mhz PCI maxes out. Dave. -- ============================================================================ |David Gilbert, Velocet Communications. | Two things can only be | |Mail: dgilbert@velocet.net | equal if and only if they | |http://daveg.ca | are precisely opposite. | =========================================================GLO================