From owner-freebsd-questions@FreeBSD.ORG Wed Aug 22 12:58:35 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D061316A421 for ; Wed, 22 Aug 2007 12:58:35 +0000 (UTC) (envelope-from apvanderveen@att.net) Received: from mtiwmhc12.worldnet.att.net (mtiwmhc12.worldnet.att.net [204.127.131.116]) by mx1.freebsd.org (Postfix) with ESMTP id 9F6B713C465 for ; Wed, 22 Aug 2007 12:58:35 +0000 (UTC) (envelope-from apvanderveen@att.net) Received: from t60.mydomain.home (cpe-72-231-141-22.nycap.res.rr.com[72.231.141.22]) by worldnet.att.net (mtiwmhc12) with ESMTP id <2007082212583411200p81kae>; Wed, 22 Aug 2007 12:58:35 +0000 Message-ID: <46CC32FA.3080900@att.net> Date: Wed, 22 Aug 2007 08:58:34 -0400 From: "Arend P. van der Veen" User-Agent: Thunderbird 2.0.0.6 (X11/20070803) MIME-Version: 1.0 To: FreeBSD Questions Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "David J. Neu" Subject: AMD64 vs i386 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Aug 2007 12:58:35 -0000 Hi All, I have a general question. We have access to some new AMD64 based Dell Servers with 2 Core Duo Xeons. We are currently using i386 Dell Servers with a core duo processor. I recall from my MS Windows days that when there was the shift from 16-bit to 32-bit processors it did take a while for applications to support 32 bit. Sometimes 16-bit applications actually ran slower on the 32-bit hardware. I know this is a loaded question: - Will the AMD64 based FreeBSD 6.2 distribution with applications such as Postgresql, Apache, Python, Tomcat and SBCL be able to take advantage of the 64-bit quad processor? Thanks, Arend