From owner-freebsd-stable@FreeBSD.ORG Sat Jan 8 23:14:19 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 067BC106566B for ; Sat, 8 Jan 2011 23:14:19 +0000 (UTC) (envelope-from dan@langille.org) Received: from nyi.unixathome.org (nyi.unixathome.org [64.147.113.42]) by mx1.freebsd.org (Postfix) with ESMTP id CA4E98FC13 for ; Sat, 8 Jan 2011 23:14:18 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by nyi.unixathome.org (Postfix) with ESMTP id 2DFF850852; Sat, 8 Jan 2011 23:14:18 +0000 (GMT) X-Virus-Scanned: amavisd-new at unixathome.org Received: from nyi.unixathome.org ([127.0.0.1]) by localhost (nyi.unixathome.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id oI3c5mDJXM7g; Sat, 8 Jan 2011 23:14:18 +0000 (GMT) Received: from smtp-auth.unixathome.org (smtp-auth.unixathome.org [10.4.7.7]) (Authenticated sender: hidden) by nyi.unixathome.org (Postfix) with ESMTPSA id DD81F50850 ; Sat, 8 Jan 2011 23:14:17 +0000 (GMT) Message-ID: <4D28EFCB.3070308@langille.org> Date: Sat, 08 Jan 2011 18:14:19 -0500 From: Dan Langille Organization: The FreeBSD Diary User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: Mehmet Erol Sanliturk References: <4D28CB06.8030301@langille.org> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable Subject: Re: ZFS - benchmark & tuning before and after doubling RAM X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 08 Jan 2011 23:14:19 -0000 On 1/8/2011 4:33 PM, Mehmet Erol Sanliturk wrote: > > > On Sat, Jan 8, 2011 at 3:37 PM, Dan Langille > wrote: > > I've been running a ZFS array for about 10 months on a system with > 4GB of RAM. I'm about to add another 4GB of RAM. > > I think this might be an opportune time to run some simple > benchmarks and do some tuning. Getting more out of the system is > not a priority for me. It does what I need now. However, I do see > some merit in writing something up for others to see/follow/learn. > > The system is running FreeBSD 8.2-PRERELEASE #1: Tue Nov 30 22:07:59 > EST 2010 on a 64 bit box. The ZFS array consists of 7x2TB commodity > drives on two SiI3124 SATA controllers. The OS runs off a gmirror > RAID-1. > > More details here: http://www.freebsddiary.org/zfs-benchmark.php > > First, up, I've done a simple bonnie++ benchmark before I add more > RAM. I ran this on two different datasets; one with compression > enabled, one without. > > If anyone has suggestions for various tests, option settings, etc, > I'm happy to run them and include the results. We have lots of time > to play with this. > > -- > Dan Langille - http://langille.org/ > > > > > I think , you know the following pages : > > http://hub.opensolaris.org/bin/view/Community+Group+zfs/zfstestsuite > http://dlc.sun.com/osol/test/downloads/current/ > http://hub.opensolaris.org/bin/view/Community+Group+testing/testsuites > http://hub.opensolaris.org/bin/view/Community+Group+testing/zones > > Some of the links may disappear spontaneously because of restructuring > of their respective sites . Looking briefly, them seen to be more aimed at regression testing than a benchmark. They all seem to be the same thing (just different instances). Perhaps I am mistaken, but I will look closer. -- Dan Langille - http://langille.org/