From owner-freebsd-questions@FreeBSD.ORG Mon Jun 4 20:02:28 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id D83C416A468 for ; Mon, 4 Jun 2007 20:02:28 +0000 (UTC) (envelope-from tundra@tundraware.com) Received: from eskimo.tundraware.com (eskimo.tundraware.com [66.92.130.161]) by mx1.freebsd.org (Postfix) with ESMTP id 828B413C484 for ; Mon, 4 Jun 2007 20:02:28 +0000 (UTC) (envelope-from tundra@tundraware.com) Received: from [192.168.0.2] (viper.tundraware.com [192.168.0.2]) (authenticated bits=0) by eskimo.tundraware.com (8.13.8/8.13.8) with ESMTP id l54K2L2N054054 (version=TLSv1/SSLv3 cipher=DHE-DSS-AES256-SHA bits=256 verify=NO); Mon, 4 Jun 2007 15:02:22 -0500 (CDT) (envelope-from tundra@tundraware.com) Message-ID: <46646FCC.9060908@tundraware.com> Date: Mon, 04 Jun 2007 15:02:20 -0500 From: Tim Daneliuk Organization: TundraWare Inc. User-Agent: Thunderbird 1.5.0.12 (Windows/20070509) MIME-Version: 1.0 To: Chris References: <466451CA.6020108@tundraware.com> <4664572A.4060003@freebsd.org> <3aaaa3a0706041254r257e1480g872faa6e504df6dc@mail.gmail.com> In-Reply-To: <3aaaa3a0706041254r257e1480g872faa6e504df6dc@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-tundraware.com-MailScanner-Information: Please contact the ISP for more information X-tundraware.com-MailScanner: Found to be clean X-tundraware.com-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-4.399, required 1, autolearn=not spam, ALL_TRUSTED -1.80, BAYES_00 -2.60) X-tundraware.com-MailScanner-From: tundra@tundraware.com X-Spam-Status: No Cc: freebsd-questions@freebsd.org Subject: Re: New != Faster X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: tundra@tundraware.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Jun 2007 20:02:29 -0000 Chris wrote: > On 04/06/07, Colin Percival wrote: >> Tim Daneliuk wrote: >> > Old 2 PIII @600Mhz 768K 26M/sec 4.11-stable/SMP >> > 50-60 min >> > New Pent D (2 core)@3.2GHz 2G 50M/sec 6.2-stable/SMP >> > 40-50 min >> > Fast 2 Xeon @3GHz 3G 130M/sec 4.11-stable/SMP >> > 8 min >> > >> > Is the difference in speed >> > attributable to 4.11 being faster than 6.2? >> >> Close. The difference in speed is due to the compiler in 4.11 being >> faster than the compiler in 6.2. FreeBSD uses the gcc compiler, and >> between FreeBSD 4.11 and FreeBSD 6.2 that has been upgraded from 2.9 >> to 3.4. The general trend each time gcc is upgraded is that it takes >> 2x longer to compile code, but produces code which is 5% faster (as a >> result of "working harder" to find optimizations). >> >> FreeBSD 6.2 is faster than FreeBSD 4.11 for almost everything except >> compiling itself. :-) >> >> Colin Percival >> >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to >> "freebsd-questions-unsubscribe@freebsd.org" >> > > What about all the following observations? > > slower network performance in 6.x especially worse under DDOS conditions. > slower disk performance especially under QUOTA. > > both of these have been confirmed numerous times by different people > so sweeping them under the carpet and saying they simply not true > would be wrong. My observation of 6.x is that whilst it can exceed > 4.11 performance this is only because of more more powerful hardware > and in particular on SMP systems where 4.11 isnt optimised but for UP > and most older hardware the worst performance of post 4.11 is > highlighted greatly. > > In thoery shouldnt eg. a 6.2 system using a 3ghz core 2 duo be > multiple times faster then a pentium 3 500 running freebsd 4.11 due to > the more powerful hardware? > > Chris It will be of academic interest to me to see how people respond to this. Unfortunately - as documented in my original post - the 4.11 CD will not even boot on this new motherboard for some reason. Given that, and that 4.x is no longer actively developed, I am forced to move to 6.x for my next server ... -- ---------------------------------------------------------------------------- Tim Daneliuk tundra@tundraware.com PGP Key: http://www.tundraware.com/PGP/