From owner-freebsd-mobile@FreeBSD.ORG Mon May 14 17:34:49 2007 Return-Path: X-Original-To: freebsd-mobile@freebsd.org Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id DB17D16A400; Mon, 14 May 2007 17:34:49 +0000 (UTC) (envelope-from SRS0=e3566a3b3fee3533028d819964eac99909eea36c=335=es.net=oberman@es.net) Received: from postal1.es.net (postal1.es.net [198.128.3.205]) by mx1.freebsd.org (Postfix) with ESMTP id BD36813C44B; Mon, 14 May 2007 17:34:49 +0000 (UTC) (envelope-from SRS0=e3566a3b3fee3533028d819964eac99909eea36c=335=es.net=oberman@es.net) Received: from ptavv.es.net (ptavv.es.net [198.128.4.29]) by postal1.es.net (Postal Node 1) with ESMTP (SSL) id TWH49040; Mon, 14 May 2007 10:19:40 -0700 Received: from ptavv.es.net (ptavv.es.net [127.0.0.1]) by ptavv.es.net (Tachyon Server) with ESMTP id 973FA45042; Mon, 14 May 2007 10:19:40 -0700 (PDT) To: Tom Evans In-Reply-To: Your message of "Mon, 14 May 2007 17:48:09 BST." <1179161289.1791.29.camel@zoot.mintel.co.uk> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1179163180_91599P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Mon, 14 May 2007 10:19:40 -0700 From: "Kevin Oberman" Message-Id: <20070514171940.973FA45042@ptavv.es.net> Cc: freebsd-mobile@freebsd.org, Abdullah Ibn Hamad Al-Marri , Charles Trevor Subject: Re: Recommended laptops for FreeBSD 6.x ... X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 May 2007 17:34:49 -0000 --==_Exmh_1179163180_91599P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > From: Tom Evans > Date: Mon, 14 May 2007 17:48:09 +0100 > Sender: owner-freebsd-mobile@freebsd.org > > > --=-jdMU/vAkVlVQBOC0m45e > Content-Type: text/plain > Content-Transfer-Encoding: quoted-printable > > On Mon, 2007-05-14 at 10:18 -0500, Eric Anderson wrote: > > On 05/14/07 10:07, Tom Evans wrote: > > > On Mon, 2007-05-14 at 11:17 +0300, Abdullah Ibn Hamad Al-Marri wrote: > > >> That's alright, but I don't think we are going to look for single core > > >> cpu anymore these days, maybe just for tabletpc to save power? > > >> > > >=20 > > > If your primary concern is as a road warrior, then battery life might > > > appeal to you more than a 40% reduction in 'make buildworld'. > > >=20 > > > Personally I love my dual core lappy, but I use battery power about 10% > > > of the time, and always under 1 hour. > >=20 > >=20 > > Note that a Core 2 Duo processor may use noticeably less power than a=20 > > single core . > >=20 > >=20 > > Eric > >=20 > > I find it still uses more juice with both cores enabled than just one - > in which case, surely a Core Solo might be a better bet. I'm not sure on > availability of Core 2 Duo ULV processors in off-the-shelf laptops. For the record, Pentium4 based systems use a LOT more power than either Pentium-M (aka Centrino). I have not carefully evaluated the power consumption of Core Duo systems, but they are higher then similar Pentium-M systems. P4 systems also run much hotter than P-M or Core Duo systems. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751 --==_Exmh_1179163180_91599P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) Comment: Exmh version 2.5 06/03/2002 iD8DBQFGSJoskn3rs5h7N1ERAhIxAJ9+44UH2iEi+RByiqU0IP544RvkBwCgrnow APWh+2nY0IEnqJP/udOkzUI= =9SIe -----END PGP SIGNATURE----- --==_Exmh_1179163180_91599P--