From owner-freebsd-current@FreeBSD.ORG Thu Aug 19 08:49:21 2010 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DFCC510656CB; Thu, 19 Aug 2010 08:49:21 +0000 (UTC) (envelope-from alexander@leidinger.net) Received: from mail.ebusiness-leidinger.de (mail.ebusiness-leidinger.de [217.11.53.44]) by mx1.freebsd.org (Postfix) with ESMTP id 6813C8FC18; Thu, 19 Aug 2010 08:49:21 +0000 (UTC) Received: from outgoing.leidinger.net (p57B3B444.dip.t-dialin.net [87.179.180.68]) by mail.ebusiness-leidinger.de (Postfix) with ESMTPSA id 1F0E784401F; Thu, 19 Aug 2010 10:49:17 +0200 (CEST) Received: from webmail.leidinger.net (webmail.leidinger.net [192.168.1.102]) by outgoing.leidinger.net (Postfix) with ESMTP id DC2251228; Thu, 19 Aug 2010 10:49:13 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=Leidinger.net; s=outgoing-alex; t=1282207754; bh=MMnpNYCh9xfNdsRwmim3DMbpeqKZ3GFo3xK0t9w3R+4=; h=Message-ID:Date:From:To:Cc:Subject:References:In-Reply-To: MIME-Version:Content-Type:Content-Transfer-Encoding; b=QwHwEtv6C3z32G6hMNgcfKYoMRzFUM3K31Fe4CLTUQCQ6kab3HBUzaP0A9iIUW9FY qjwl1gvkswIClqpxyXdyy4zetH3YA0RVklnt/ZU2PbBAqHVTJ39bR/RLgxD7yn37dO nIbKVuO81j+QfNScjWG3dXNukz/D+ByKXTGzqjgHy9t439b28A932PvDfgJwsPJV5t ARWzZgNwqL1m/cB2I89hiM49g/2ijRajzYs6LzaN+p5Vg1i7DvfOLuOjrttd65Z/7P bfXiERsM0OlIl+qVHTZ214DwEPPh0B6sXhnqbVseL278CnVg4CXN+M29rous8E9R+U A9mhM6XvLweiA== Received: (from www@localhost) by webmail.leidinger.net (8.14.4/8.13.8/Submit) id o7J8nD9B088137; Thu, 19 Aug 2010 10:49:13 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Received: from pslux.ec.europa.eu (pslux.ec.europa.eu [158.169.9.14]) by webmail.leidinger.net (Horde Framework) with HTTP; Thu, 19 Aug 2010 10:49:13 +0200 Message-ID: <20100819104913.19722klqtkcfy2gw@webmail.leidinger.net> Date: Thu, 19 Aug 2010 10:49:13 +0200 From: Alexander Leidinger To: "V. T. Mueller, Continum" References: <65F17C45-55C1-4349-A4D1-A3D6AD0D9A80@FreeBSD.org> <4C6C1EB1.5000004@FreeBSD.org> <20100819090128.22597bbvyogdw9wk@webmail.leidinger.net> <4C6CDB3A.1010200@continum.net> In-Reply-To: <4C6CDB3A.1010200@continum.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Dynamic Internet Messaging Program (DIMP) H3 (1.1.4) X-EBL-MailScanner-Information: Please contact the ISP for more information X-EBL-MailScanner-ID: 1F0E784401F.A3B5A X-EBL-MailScanner: Found to be clean X-EBL-MailScanner-SpamCheck: not spam, spamhaus-ZEN, SpamAssassin (not cached, score=-1.1, required 6, autolearn=disabled, ALL_TRUSTED -1.00, DKIM_SIGNED 0.10, DKIM_VALID -0.10, DKIM_VALID_AU -0.10) X-EBL-MailScanner-From: alexander@leidinger.net X-EBL-MailScanner-Watermark: 1282812557.69011@xA28Ox3wydp61jXod2ihPg X-EBL-Spam-Status: No Cc: "arch@freebsd.org" , "current@freebsd.org" Subject: Re: Removal of ICC (intel compiler) bits from mk X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Aug 2010 08:49:22 -0000 Quoting "V. T. Mueller, Continum" (from Thu, 19 Aug 2010 09:20:26 +0200): > Hello, > > Alexander Leidinger wrote: >> If someone would get icc 11.x up and runnig as a port (similar to >> what we have for outdated icc version in the ports collection), I >> would have a look if my contact at Intel is still working there in >> a position which allows him to get a commercial license for us. > > A while ago it was stated by MySQL AB, that their dbms performs > about 20% better when compiled with icc instead of gcc. Is this > (still) true? This looks overly simplified. "It runs better on CPU X with benchmark Y on Mainboard Z when you use gcc A.B.C with options D and compare it to icc E.F.G with options H." is something you can use in such cases, but it doesn't tell you if it will be the case on your machines with your workload. If you want to know if it is faster on your machines with your workload, then there is only one way to find it out: try it (be warned, due to the amount of optimization options available in gcc/icc, something like this will take a lot of time, as there are a lot of combinations to try). Bye, Alexander. -- Today is the first day of the rest of your life. http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137