From owner-freebsd-amd64@FreeBSD.ORG Mon Nov 23 00:54:33 2009 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AFAD1106566C for ; Mon, 23 Nov 2009 00:54:33 +0000 (UTC) (envelope-from areilly@bigpond.net.au) Received: from nskntmtas05p.mx.bigpond.com (nskntmtas05p.mx.bigpond.com [61.9.168.149]) by mx1.freebsd.org (Postfix) with ESMTP id 3A84E8FC1A for ; Mon, 23 Nov 2009 00:54:32 +0000 (UTC) Received: from nskntotgx03p.mx.bigpond.com ([124.188.161.100]) by nskntmtas05p.mx.bigpond.com with ESMTP id <20091123005431.TEOZ28618.nskntmtas05p.mx.bigpond.com@nskntotgx03p.mx.bigpond.com>; Mon, 23 Nov 2009 00:54:31 +0000 Received: from duncan.reilly.home ([124.188.161.100]) by nskntotgx03p.mx.bigpond.com with ESMTP id <20091123005430.QKDB24930.nskntotgx03p.mx.bigpond.com@duncan.reilly.home>; Mon, 23 Nov 2009 00:54:30 +0000 Date: Mon, 23 Nov 2009 11:54:10 +1100 From: Andrew Reilly To: Saurav Bhasin Message-ID: <20091123005410.GA45465@duncan.reilly.home> References: <28035a390911221311q67cc0eebx6daec0d6237809f2@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <28035a390911221311q67cc0eebx6daec0d6237809f2@mail.gmail.com> User-Agent: Mutt/1.4.2.3i X-Authentication-Info: Submitted using SMTP AUTH LOGIN at nskntotgx03p.mx.bigpond.com from [124.188.161.100] using ID areilly@bigpond.net.au at Mon, 23 Nov 2009 00:54:30 +0000 X-RPD-ScanID: Class unknown; VirusThreatLevel unknown, RefID str=0001.0A150202.4B09DD47.003A,ss=1,fgs=0 X-SIH-MSG-ID: qBs0FtT7TAD0zmQs0WyzOwJxyArnqyN48Z4QX81loRIGTUDCp8DeQ9reLP1Rv9GgxDxPJhqFNGQkaa/lTY3RstCK Cc: freebsd-amd64@freebsd.org Subject: Re: AMD64 with only 3GB RAM work good? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Nov 2009 00:54:33 -0000 On Mon, Nov 23, 2009 at 02:41:00AM +0530, Saurav Bhasin wrote: > I need to install AMD64(64 bit) on my Lenovo Thinkpad Laptop which has > a RAM memory of only 3GB > > My other laptop specs are: > > Processor: Intel Core 2 I(Duo) processor T9500 - 2.60 Ghz. > RAM: 3GB RAM. > Nvidia GM150 Graphics. > > Would amd64 work well with a 3GB RAM ?. It will be fine with the 3G RAM: amd64 can handle much more memory than ia32, but it doesn't need significantly more: program size and data size are usually fairly comparable. Depends a bit on the density of pointers and linked structures. Code and non-pointer data is essentially the same size. What *won't* be totally fine is the Nvidia graphics card. Nvidia provide a closed-source driver only for ia32, and the open-source drivers work so well that I switched to ATI on my amd64 desktop system (and have been happy ever since.) > I need my laptop for Programming, scientific calculations and heavy > mathematical stuff. So lack of whizzy 3D accelleration is probably not a big deal: you might get by with the nv (open source) driver. Languages, compilers and numerical libraries all work very nicely in amd64. Cheers, -- Andrew