From owner-freebsd-fs@FreeBSD.ORG Thu Nov 13 08:53:27 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 59A9F1065670; Thu, 13 Nov 2008 08:53:27 +0000 (UTC) (envelope-from wjw@digiware.nl) Received: from mail.digiware.nl (www.tegenbosch28.nl [217.21.251.97]) by mx1.freebsd.org (Postfix) with ESMTP id EA2708FC12; Thu, 13 Nov 2008 08:53:26 +0000 (UTC) (envelope-from wjw@digiware.nl) Received: from localhost (localhost.digiware.nl [127.0.0.1]) by mail.digiware.nl (Postfix) with ESMTP id 0709F1765B; Thu, 13 Nov 2008 09:33:04 +0100 (CET) X-Virus-Scanned: amavisd-new at digiware.nl Received: from mail.digiware.nl ([127.0.0.1]) by localhost (rack1.digiware.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YMOew9zOnKSU; Thu, 13 Nov 2008 09:32:52 +0100 (CET) Received: from [212.61.27.67] (opteron [212.61.27.67]) by mail.digiware.nl (Postfix) with ESMTP id BA91A174FF; Thu, 13 Nov 2008 09:32:51 +0100 (CET) Message-ID: <491BE632.1020801@IMAP> Date: Thu, 13 Nov 2008 09:32:50 +0100 From: Willem Jan Withagen User-Agent: Thunderbird 2.0.0.17 (X11/20080925) MIME-Version: 1.0 To: Danny Carroll References: <490A782F.9060406@dannysplace.net> <20081031033208.GA21220@icarus.home.lan> <490A849C.7030009@dannysplace.net> <20081031043412.GA22289@icarus.home.lan> <490A8FAD.8060009@dannysplace.net> <491BBF38.9010908@dannysplace.net> In-Reply-To: <491BBF38.9010908@dannysplace.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org, Jeremy Chadwick , freebsd-hardware@freebsd.org Subject: Re: Areca vs. ZFS performance testing. 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: Thu, 13 Nov 2008 08:53:27 -0000 Danny Carroll wrote: > Danny Carroll wrote: >> Jeremy Chadwick wrote: >>> I'd like to see the performance difference between these scenarios: >>> >>> - Memory cache enabled on Areca, write caching enabled on disks >>> - Memory cache enabled on Areca, write caching disabled on disks >>> - Memory cache disabled on Areca, write caching enabled on disks >>> - Memory cache disabled on Areca, write caching disabled on disks >>> > > > The initial results for a ICH9 vs Areca in JBod mode can be found here: > http://www.dannysplace.net/ZFS-JBODTests.html Just as a polite question, since I'm very much in favor doing benchmarking and do appreciate these kinds of test. You might want to add an introductory page to your results describing how you setup the test: Details of the hardware Details of the disk setup possible version and options with bonnie The script you used.... This would allow others to redo your experiment and try to figure out why their numbers are different. --WjW