Date: Mon, 14 May 2007 10:19:40 -0700 From: "Kevin Oberman" <oberman@es.net> To: Tom Evans <tevans.uk@googlemail.com> Cc: freebsd-mobile@freebsd.org, Abdullah Ibn Hamad Al-Marri <almarrie@gmail.com>, Charles Trevor <ct.lists@qgsltd.co.uk> Subject: Re: Recommended laptops for FreeBSD 6.x ... Message-ID: <20070514171940.973FA45042@ptavv.es.net> In-Reply-To: Your message of "Mon, 14 May 2007 17:48:09 BST." <1179161289.1791.29.camel@zoot.mintel.co.uk>
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--==_Exmh_1179163180_91599P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > From: Tom Evans <tevans.uk@googlemail.com> > 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 <something else>. > >=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--
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