From owner-freebsd-current@FreeBSD.ORG Sun Aug 2 11:50:56 2009 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F38E21065677 for ; Sun, 2 Aug 2009 11:50:55 +0000 (UTC) (envelope-from h.schmalzbauer@omnilan.de) Received: from host.omnilan.net (host.omnilan.net [62.245.232.135]) by mx1.freebsd.org (Postfix) with ESMTP id 7979D8FC13 for ; Sun, 2 Aug 2009 11:50:54 +0000 (UTC) (envelope-from h.schmalzbauer@omnilan.de) Received: from titan.flintsbach.schmalzbauer.de (titan.flintsbach.schmalzbauer.de [172.21.1.150]) (authenticated bits=0) by host.omnilan.net (8.13.8/8.13.8) with ESMTP id n72BZimm004510 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sun, 2 Aug 2009 13:35:49 +0200 (CEST) (envelope-from h.schmalzbauer@omnilan.de) Message-ID: <4A757A00.3090903@omnilan.de> Date: Sun, 02 Aug 2009 13:35:28 +0200 From: Harald Schmalzbauer Organization: OmniLAN User-Agent: Thunderbird 2.0.0.22 (X11/20090717) MIME-Version: 1.0 To: Uwe Grohnwaldt References: <4A65E6EB.50308@grohnwaldt.eu> <20090722082940.GA18826@asahi.TechFak.Uni-Bielefeld.DE> <4A7327DE.9010305@grohnwaldt.eu> <4A7382EF.5050400@grohnwaldt.eu> In-Reply-To: <4A7382EF.5050400@grohnwaldt.eu> X-Enigmail-Version: 0.95.6 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig9B01C3A5CEE6CE6040596675" Cc: current@freebsd.org Subject: Re: cpufreq on VIA C7 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 02 Aug 2009 11:50:56 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig9B01C3A5CEE6CE6040596675 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Uwe Grohnwaldt schrieb am 01.08.2009 01:49 (localtime): > Hi, >=20 > disabling cpufreq in the kernel configfile works fine. after that it=20 > looks fine: > dev.cpu.0.freq_levels: 2000/20000 1000/10000 800/8000 400/4000 This is done by throttling. Unfortunately it doesn't safe power for me,=20 at least on my E8400 the power consumption raises about a hardly=20 measureable bit. If I'm right the C7 (Eden V4, Esther in my case) supports enhanced speed = stepping. I can enable it in my BIOS (along with SpeedStep1) which=20 should enable the cpu to operate with 0.884 Volt. This would safe=20 enourmous power. Unfortunately I can't hack the est driver to attach to C7. Any volunteers? :) Best regards, -Harry P.S.: I'll do some measurings regarding the throttling on the C7 to=20 verify disabling throttling is the right thing ;) --------------enig9B01C3A5CEE6CE6040596675 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iEYEARECAAYFAkp1ehAACgkQLDqVQ9VXb8iaBQCg0Hcm/zmdOUKy1np86Yy3jZr+ UMkAoImbN5SXD+cu4PqHSz43W5i76KGL =lSJF -----END PGP SIGNATURE----- --------------enig9B01C3A5CEE6CE6040596675--