From owner-freebsd-net@FreeBSD.ORG Fri Dec 5 08:48:02 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 2A649106564A for ; Fri, 5 Dec 2008 08:48:02 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from ftp.translate.ru (ftp.translate.ru [195.131.4.140]) by mx1.freebsd.org (Postfix) with ESMTP id D8A5C8FC14 for ; Fri, 5 Dec 2008 08:48:01 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from desktop.home.serebryakov.spb.ru (blacklion.dialup.corbina.ru [89.179.122.169]) (Authenticated sender: lev@serebryakov.spb.ru) by ftp.translate.ru (Postfix) with ESMTPA id 4369F13DF92 for ; Fri, 5 Dec 2008 11:37:34 +0300 (MSK) Date: Fri, 5 Dec 2008 11:29:39 +0300 From: Lev Serebryakov X-Priority: 3 (Normal) Message-ID: <1682252731.20081205112939@serebryakov.spb.ru> To: freebsd-net@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1251 Content-Transfer-Encoding: quoted-printable Subject: NFS performance tuning? 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: Fri, 05 Dec 2008 08:48:02 -0000 Hello, Freebsd-net. I have two systems (7-Stable), connected with gigabit link. iperf shows 667 Mbits/sec on TCP and 600Mbit/s on UDP without any tuning. But NFS gives me only 17Mb/s (~136 Mbit/s) on sequential read of very big files, and about 8-10Mb/s on "real" workloads. Are here any guides how to tune NFS for performance? --=20 // Black Lion AKA Lev Serebryakov