From owner-freebsd-net@FreeBSD.ORG Tue Jul 8 13:16:24 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C8E4F1065674 for ; Tue, 8 Jul 2008 13:16:24 +0000 (UTC) (envelope-from nettwork@gmx.de) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by mx1.freebsd.org (Postfix) with SMTP id 19E3D8FC2E for ; Tue, 8 Jul 2008 13:16:23 +0000 (UTC) (envelope-from nettwork@gmx.de) Received: (qmail invoked by alias); 08 Jul 2008 13:16:21 -0000 Received: from e178213225.adsl.alicedsl.de (HELO [10.0.0.100]) [85.178.213.225] by mail.gmx.net (mp041) with SMTP; 08 Jul 2008 15:16:21 +0200 X-Authenticated: #46460896 X-Provags-ID: V01U2FsdGVkX18HPkp6iFAHOj/S89rBNJ2mgEwJxs/V7HyPbdXelp hVhrfUWX7xccKw From: Achim To: freebsd-net@freebsd.org Date: Tue, 8 Jul 2008 13:16:52 +0000 User-Agent: KMail/1.9.7 References: <200807071615.40987.nettwork@gmx.de> <20080708033239.GL62764@server.vk2pj.dyndns.org> In-Reply-To: <20080708033239.GL62764@server.vk2pj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200807081316.52482.nettwork@gmx.de> X-Y-GMX-Trusted: 0 X-FuHaFi: 0.64 Subject: Re: smbmount / smbclient : strangely varying transfer speeds X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Jul 2008 13:16:24 -0000 On Tuesday 08 July 2008 03:32:40 Peter Jeremy wrote: > On 2008-Jul-07 16:15:40 +0000, Achim wrote: > >Performance with a single client is degraded when the client is smbmount > > and downloading. > >With a second transfer in any direction, performance becomes better, to > > about 3.5 resp. 8 MB/s depending on the second connection up- or > > downloading. Unlike smbmount, single smbclient transfers yield acceptable > > results. > > Is this two transfers between a single server and single client or > between a single server and two clients? In the former case, you > might like to try a transfers involving two clients or two servers > to try and identify which end is behaving oddly. Splendid Idea - As of yet, all test cases indeed were the same two physical machines, however if the client is a FBSD7 instead of the kubuntu one, comparable results are showing, so i suspect the server (FBSD7) to be the source of the oddness. I will try your suggestion as soon as the FBSD(Notebook) is back, should be tonight. Furthermore, there is a FBSD Dualboot on the kubuntu machine that i will test later to see if it shows the same behaviour. Funnily enough, if the second transfer is a very small-bandwidth one, like watching a movie instead of transferring it, the positive effect on the first transfer is also a LOT smaller than with a concurrent high-bandwidth access.