From owner-freebsd-performance@FreeBSD.ORG Wed Nov 26 09:55:41 2008 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 16CD41065673 for ; Wed, 26 Nov 2008 09:55:41 +0000 (UTC) (envelope-from ivoras@gmail.com) Received: from fk-out-0910.google.com (fk-out-0910.google.com [209.85.128.189]) by mx1.freebsd.org (Postfix) with ESMTP id 8EC638FC14 for ; Wed, 26 Nov 2008 09:55:40 +0000 (UTC) (envelope-from ivoras@gmail.com) Received: by fk-out-0910.google.com with SMTP id k31so369096fkk.11 for ; Wed, 26 Nov 2008 01:55:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:sender :to:subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references :x-google-sender-auth; bh=VUW0KLYs+6TO7zvArN8dXFj7TsFb08X+S6fxoMCqtl0=; b=LNDOY55GoWGTbSiR7x7+ZiNHvufLM334IMilLCER2Ejz8CVYWYX4FywBR88y+y1XER U7EExtfMuM0PA/Jf6wc21kk4KOYck8/ZK8v8JNmIALAdgliCcihe7VqrjruEWn7gy8u0 LIf25uccrhVzE/ZajMAciXJAtJxDfnD2bVcLU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references:x-google-sender-auth; b=lTB9vuGQJacTzPpjruutJoTSB4gGWf1BSORKzYqU0T6eslyV02RcCqbub4Cu4VdMS4 t+LQ9epyTupd4RC3ChsML/4a7BvwExe1n8fTzSqAK4gUfAVSRv+tYOtqGcM9uEEYoxcg ZM4D3XPU+JeS0kkT+/OvVvB4OmcGT0tr842NY= Received: by 10.181.218.14 with SMTP id v14mr1885548bkq.111.1227693339156; Wed, 26 Nov 2008 01:55:39 -0800 (PST) Received: by 10.181.49.2 with HTTP; Wed, 26 Nov 2008 01:55:39 -0800 (PST) Message-ID: <9bbcef730811260155h156b7a6v8c88b0da51f28ee@mail.gmail.com> Date: Wed, 26 Nov 2008 10:55:39 +0100 From: "Ivan Voras" Sender: ivoras@gmail.com To: "Alexander Leidinger" In-Reply-To: <20081126094314.119834gt66jv0g00@webmail.leidinger.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20081125173657.GA50429@freebsd.org> <9bbcef730811251246nf39e825s95a25ae394948e06@mail.gmail.com> <20081126094314.119834gt66jv0g00@webmail.leidinger.net> X-Google-Sender-Auth: 898ce488b1781071 Cc: freebsd-performance@freebsd.org Subject: Re: FreeBSD 7.1 BETA 2 vs Opensolaris vs Ubuntu performance 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: Wed, 26 Nov 2008 09:55:42 -0000 2008/11/26 Alexander Leidinger : > If you want to test OS performance and use Java programs in there to do so, > you would use the same Java version, wouldn't you? They didn't. Linux: 1.6.0_0-b12 Solaris: 1.6.0_10-b33 FreeBSD: 1.6.0_07-b02 Since system have their local patches (I know FreeBSD does), I don't think it's even possible to test "exactly the same" version ;) But this also goes into the "What OS ships with" category. > If you want to run number crunching software, you are interested in high > computing throughput of your app, so you use a compiler which performs best > for your code in question (which would mean probably the Intel compiler or > the Portland compiler on Linux, maybe the Sun compiler on Solaris, and > probably gcc on FreeBSD). You also want to optimize the code for your CPU > (it makes a difference if you do floating point calculations and are allowed > to use the SSEx or whatever instructions), and not some generic settings the > OS comes with. I think they went with the "stock" configurations as that's what almost all users will use. > The "benchmark" presented there is flawed in a lot of ways. Yes.