From owner-freebsd-current@FreeBSD.ORG Sat Jul 10 02:36:40 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B583F16A4CE for ; Sat, 10 Jul 2004 02:36:40 +0000 (GMT) Received: from otter3.centtech.com (moat3.centtech.com [207.200.51.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 47FCF43D1F for ; Sat, 10 Jul 2004 02:36:40 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from [192.168.42.25] ([192.168.42.25]) by otter3.centtech.com (8.12.3/8.12.3) with ESMTP id i6A2adE8076672; Fri, 9 Jul 2004 21:36:39 -0500 (CDT) (envelope-from anderson@centtech.com) Message-ID: <40EF5631.2050406@centtech.com> Date: Fri, 09 Jul 2004 21:36:33 -0500 From: Eric Anderson User-Agent: Mozilla Thunderbird 0.7.1 (X11/20040707) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Claus Guttesen References: <20040709234909.33212.qmail@web14102.mail.yahoo.com> In-Reply-To: <20040709234909.33212.qmail@web14102.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: current@freebsd.org Subject: Re: nfs-server twice as fast written to as read from X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Jul 2004 02:36:40 -0000 Claus Guttesen wrote: >Hi. > >Is testing a nfs-server with current as of July 9'th. >While copying to and from the server to two different >hosts, I noticed that copying _to_ the server was >twice as fast as copying _from_ the server. This was >regardless of which host I tested from. > >Is using tcp, r/w-size 65536 on client, server: > >net.inet.tcp.sendspace: 65536 >net.inet.tcp.recvspace: 65536 > >All hosts are on 100 Mbit/s. > >It takes 5 min. 30 sec. copying 3 GB to, 11 min. 43 >sec. from the nfs-server. Is there a penalty reading >from the server in relation to nfs? > > It would be interesting to see how you were copying the data, and where it was coming from when writing, and going to when reading.. Eric -- ------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Talk sense to a fool and he calls you foolish. ------------------------------------------------------------------