From owner-freebsd-performance@FreeBSD.ORG Thu Feb 8 03:34:11 2007 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 64D9A16A400 for ; Thu, 8 Feb 2007 03:34:09 +0000 (UTC) (envelope-from mv@thebeastie.org) Received: from p4.roq.com (ns1.ecoms.com [207.44.130.137]) by mx1.freebsd.org (Postfix) with ESMTP id 3B93C13C4AA for ; Thu, 8 Feb 2007 03:34:09 +0000 (UTC) (envelope-from mv@thebeastie.org) Received: from p4.roq.com (localhost.roq.com [127.0.0.1]) by p4.roq.com (Postfix) with ESMTP id 0879C4D7CF for ; Thu, 8 Feb 2007 03:22:27 +0000 (GMT) Received: from smitch7.jumbuck.com (unknown [206.112.99.82]) by p4.roq.com (Postfix) with ESMTP id D38FA4D4A2 for ; Thu, 8 Feb 2007 03:22:26 +0000 (GMT) Received: from smitch7.jumbuck.com (mail.jumbuck.com [206.112.99.82]) by smitch7.jumbuck.com (Postfix) with ESMTP id 2D0444111CB; Thu, 8 Feb 2007 03:18:58 +0000 (UTC) Received: from beaste5.jumbuck.com (melbourne.jumbuck.com [150.101.166.27]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by smitch7.jumbuck.com (Postfix) with ESMTP id D11D8410EA6; Thu, 8 Feb 2007 03:18:57 +0000 (UTC) Received: from beaste5.jumbuck.com (beast5 [192.168.46.105]) by beaste5.jumbuck.com (Postfix) with ESMTP id B54B5209D1A9; Thu, 8 Feb 2007 14:18:56 +1100 (EST) Received: from [192.168.46.102] (unknown [192.168.46.250]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by beaste5.jumbuck.com (Postfix) with ESMTP id 8E106209D195; Thu, 8 Feb 2007 14:18:56 +1100 (EST) Message-ID: <45CA96A0.7070404@thebeastie.org> Date: Thu, 08 Feb 2007 14:18:56 +1100 From: Michael Vince User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.7.13) Gecko/20060727 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Scott I. Remick" References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP Cc: freebsd-performance@freebsd.org Subject: Re: WHT thread: FreeBSD vs. CentOS X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Feb 2007 03:34:11 -0000 Scott I. Remick wrote: >Just wanted to give those on the list a heads-up about this thread over on >WebHostingTalk: > >http://www.webhostingtalk.com/showthread.php?t=563624 > >It's been going on a few months now. Apparently a number of webhosts are >finding poor FreeBSD performance when compared with CentOS. Perhaps >someone on here would like to pipe in with some assistance? > > > This filesystem benchmark for his particular raid card seems a bit silly to judge the whole OS on. It could simply be that the driver for that particular raid card wasn't as well coded/tuned for performance for FreeBSD as the linux version, you can't judge a whole OS on that for the most part his server hardware seems a bit rare and weird. That score on linux is not much more then 10% higher, I mean if 10% makes all the difference between all the possible advantages you can get or not get on a particular OS I think its just thinking a bit too square, this seems to be a bit of a epidemic way of thinking. Its the same was of thinking when I see benchmarking with MySQL people can spot a difference between Linux and FreeBSD of up to 30%? when doing 100,000 threads of queries at the same time, when most MySQL databases are doing around 20 threads? And in more higher cases maybe 500 threads at the same time max, in this ball park its impossible to see a difference between OS/MySQL performance. For judging a OS on a particular performance of a particular raid card driver is part of the same group of thinking. It would be nice in the future if people judge a OS with a wider range of factors. Mike