From owner-freebsd-fs@FreeBSD.ORG Sat Apr 28 00:31:09 2007 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 8593D16A400 for ; Sat, 28 Apr 2007 00:31:09 +0000 (UTC) (envelope-from staalebk@ifi.uio.no) Received: from smtp.bluecom.no (smtp.bluecom.no [193.75.75.28]) by mx1.freebsd.org (Postfix) with ESMTP id 462CB13C45B for ; Sat, 28 Apr 2007 00:31:08 +0000 (UTC) (envelope-from staalebk@ifi.uio.no) Received: from eschew.pusen.org (unknown [193.69.145.10]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.bluecom.no (Postfix) with ESMTP id 80C0016F574 for ; Sat, 28 Apr 2007 02:31:07 +0200 (CEST) Received: from chiller by eschew.pusen.org with local (Exim 4.50) id 1HhaqJ-0000Vj-LZ for freebsd-fs@freebsd.org; Sat, 28 Apr 2007 02:31:15 +0200 Date: Sat, 28 Apr 2007 02:31:15 +0200 From: =?iso-8859-1?Q?St=E5le?= Kristoffersen To: freebsd-fs@freebsd.org Message-ID: <20070428003115.GA1003@eschew.pusen.org> References: <20070427202222.GA26824@eschew.pusen.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20070427202222.GA26824@eschew.pusen.org> User-Agent: Mutt/1.5.13 (2006-08-11) Subject: Re: ZFS performance X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Apr 2007 00:31:09 -0000 On 2007-04-27 at 22:22, Ståle Kristoffersen wrote: > I'm having trouble with performance using ZFS as the filesystem. > I earlier ran UFS and had no problems pushing 50MB/s trough the network. > Now with ZFS i even have problems reading 15MB/s locally. From the output > of iostat and zpool iostat it looks like it reads about 2 times as much > data from the disc compared to how much the program receive. (using dd, ftp > or samba) cvsup'ed, and buildt a new kernel and now the problem is gone, sorry about the noise. -- Ståle Kristoffersen staalebk@ifi.uio.no