From owner-freebsd-questions@FreeBSD.ORG Sat Dec 10 16:35:08 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D7A4616A41F for ; Sat, 10 Dec 2005 16:35:08 +0000 (GMT) (envelope-from danial_thom@yahoo.com) Received: from web33315.mail.mud.yahoo.com (web33315.mail.mud.yahoo.com [68.142.206.130]) by mx1.FreeBSD.org (Postfix) with SMTP id 5F23543D5C for ; Sat, 10 Dec 2005 16:35:08 +0000 (GMT) (envelope-from danial_thom@yahoo.com) Received: (qmail 94311 invoked by uid 60001); 10 Dec 2005 16:35:08 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=qEpKKpZEj9PCEK57Uo4lar3t2x5QRdJr+fUSiAxNdNxbGPnetPU0cyAibbaM4tIUgR6KXMQKQ9OszrUxnmgEvz3fhXCtQNygWQBSa8NfA+n/GDlBufJCNkGgJFvntEKtKdZv9ulYv69Ww2MrYf9HFb6XLPkaw4PUsh+YBoTbBkM= ; Message-ID: <20051210163508.94309.qmail@web33315.mail.mud.yahoo.com> Received: from [24.46.186.215] by web33315.mail.mud.yahoo.com via HTTP; Sat, 10 Dec 2005 08:35:08 PST Date: Sat, 10 Dec 2005 08:35:08 -0800 (PST) From: Danial Thom To: RW , freebsd-questions@freebsd.org In-Reply-To: <200512061416.41212.list-freebsd-2004@morbius.sent.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Cc: Subject: Re: 64bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: danial_thom@yahoo.com List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Dec 2005 16:35:09 -0000 --- RW wrote: > On Tuesday 06 December 2005 05:33, K P wrote: > > hello, > > i just got AMD Athlon 64bit but i want to > know that FreeBSD for AMD64 port > > will work at 64bit mode or it is 32bit and > just will work in 64bit arch? > > i386 works in 32-bit mode, AMD64 works in 64 > bit mode. > > If it's going to be a desktop, be aware that > some important ports don't work > on the latter. I've yet to see any real evidence that 64-bit mode has any advantage at all, and I've seen lots of evidence that its a lot slower than 32-bit mode. It may be one of those things like putting 32" tires on your car; It might seem like a good idea on paper but in practice it falls on its face. I suspect that that larger data structures reduce the usefulness of the caches and the negatives end out signficantly outweighing the positives. Unless you just need to do some 64bit multiplication of course. DT __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com