From owner-freebsd-questions@FreeBSD.ORG Wed Aug 22 13:22:23 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 8D55D16A421 for ; Wed, 22 Aug 2007 13:22:23 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.freebsd.org (Postfix) with ESMTP id 3F20F13C4A5 for ; Wed, 22 Aug 2007 13:22:23 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from rot26.obsecurity.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id C04EE1A3C1A; Wed, 22 Aug 2007 06:20:25 -0700 (PDT) Received: by rot26.obsecurity.org (Postfix, from userid 1001) id 132CEC3ED; Wed, 22 Aug 2007 09:22:22 -0400 (EDT) Date: Wed, 22 Aug 2007 09:22:21 -0400 From: Kris Kennaway To: "Arend P. van der Veen" Message-ID: <20070822132221.GB9055@rot26.obsecurity.org> References: <46CC32FA.3080900@att.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46CC32FA.3080900@att.net> User-Agent: Mutt/1.4.2.3i Cc: "David J. Neu" , FreeBSD Questions Subject: Re: 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 13:22:23 -0000 On Wed, Aug 22, 2007 at 08:58:34AM -0400, Arend P. van der Veen wrote: > 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? This is a very frequently asked question, so you might like to do a bit of research in the archives or on google. Kris