From owner-freebsd-performance@FreeBSD.ORG Sun Sep 3 22:14:34 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 4968116A4DA for ; Sun, 3 Sep 2006 22:14:34 +0000 (UTC) (envelope-from fbsd-performance@graphics.cs.uni-sb.de) Received: from uni-sb.de (uni-sb.de [134.96.252.33]) by mx1.FreeBSD.org (Postfix) with ESMTP id 849EF43D49 for ; Sun, 3 Sep 2006 22:14:33 +0000 (GMT) (envelope-from fbsd-performance@graphics.cs.uni-sb.de) Received: from mail.cs.uni-sb.de (mail.cs.uni-sb.de [134.96.254.200]) by uni-sb.de (8.13.8/2006081400) with ESMTP id k83MEVw4003683 for ; Mon, 4 Sep 2006 00:14:31 +0200 (CEST) Received: from scihparg.cs.uni-sb.de (scihparg.cs.uni-sb.de [134.96.249.75]) by mail.cs.uni-sb.de (8.13.8/2006081400) with ESMTP id k83MEViW010587 for ; Mon, 4 Sep 2006 00:14:31 +0200 (CEST) Received: from bofh.cs.uni-sb.de ([134.96.249.208]) by scihparg.cs.uni-sb.de with esmtp (Exim 4.50) id 1GK0EZ-0003F2-39 for freebsd-performance@freebsd.org; Mon, 04 Sep 2006 00:14:31 +0200 Date: Mon, 04 Sep 2006 00:14:19 +0200 To: freebsd-performance@freebsd.org From: "Jan Zacharias" Content-Type: text/plain; format=flowed; delsp=yes; charset=iso-8859-1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-ID: User-Agent: Opera M2/8.51 (Linux, build 1462) X-SA-Exim-Connect-IP: 134.96.249.208 X-SA-Exim-Mail-From: fbsd-performance@graphics.cs.uni-sb.de X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on scihparg.cs.uni-sb.de X-Spam-Level: X-Spam-Status: No, score=-2.8 required=5.0 tests=ALL_TRUSTED autolearn=disabled version=3.0.3 X-SA-Exim-Version: 4.2 (built Thu, 03 Mar 2005 10:44:12 +0100) X-SA-Exim-Scanned: Yes (on scihparg.cs.uni-sb.de) X-Mailman-Approved-At: Sun, 03 Sep 2006 22:22:19 +0000 Subject: Samba performance, TCP Stack Issue? 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: Sun, 03 Sep 2006 22:14:34 -0000 Hi, was anybody able to tune the Samba service (2.2.12 or 3.0.23b) so that it would perform out as well as unter linux where it maxes out at about 11 Mb/s using some Intel/3com card? So far, the most I got out of it was ~6 Mb/s while txing one file to a win2k station, curiously I get ~8.5 Mb/s when txing multiple files in parallel. So far i messed with: - ifconfig mtu - net.inet.tcp settings - smb's socket options Tuning SO_SNDBUF gave only very little gain, adapting the mtu to match the win2k box was useless. W/a net.inet.tcp.inflight.enable enabled the txrate is 2 Mb/s lower, however 6 Mb/s is still SLOW. I cant find the bottleneck, as the system is quite idle. Any Suggestions? Greetz, Jan -- Co.G.Wheel - Administation Group, Computer Graphics Lab of Saarland University Phone: 0681 302 3841 Telecopy: 0681 302 3843 Web: http://graphics.cs.uni-sb.de