From owner-freebsd-performance@FreeBSD.ORG Sat Mar 18 12:38:00 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org 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 D10B616A400 for ; Sat, 18 Mar 2006 12:38:00 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from pi.codefab.com (pi.codefab.com [199.103.21.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 71AB143D45 for ; Sat, 18 Mar 2006 12:38:00 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from localhost (localhost [127.0.0.1]) by pi.codefab.com (Postfix) with ESMTP id C7DC55DF4; Sat, 18 Mar 2006 07:37:59 -0500 (EST) Received: from pi.codefab.com ([127.0.0.1]) by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 27094-04; Sat, 18 Mar 2006 07:37:59 -0500 (EST) Received: from [192.168.1.3] (pool-68-160-194-11.ny325.east.verizon.net [68.160.194.11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pi.codefab.com (Postfix) with ESMTP id B254C5C6F; Sat, 18 Mar 2006 07:37:58 -0500 (EST) Message-ID: <441BFF26.90807@mac.com> Date: Sat, 18 Mar 2006 07:37:58 -0500 From: Chuck Swiger Organization: The Courts of Chaos User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: OxY References: <000a01c64a81$45eb6850$0201a8c0@oxy> <441BF838.1080600@mac.com> <000601c64a87$51d7dee0$0201a8c0@oxy> In-Reply-To: <000601c64a87$51d7dee0$0201a8c0@oxy> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at codefab.com Cc: freebsd-performance@freebsd.org Subject: Re: packet drop with intel gigabit / marwell gigabit X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Mar 2006 12:38:00 -0000 OxY wrote: > yeah, i googled these settings, but i put them back to default then! > i measured iperf performance, and it showed that the packet drop is > depending on the system load.. If you are using the normal interrupt-driven configuration, you should look at netstat -i, -s, and vmstat -i. If you're turning on device polling, you ought to retry your testing at higher HZ (try 2000 or 5000): echo 'kern.hz="2000"' >> /boot/loader.conf -- -Chuck