From owner-freebsd-mobile@FreeBSD.ORG Fri Dec 17 02:33:08 2004 Return-Path: Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0B68F16A4CE; Fri, 17 Dec 2004 02:33:08 +0000 (GMT) Received: from pd4mo2so.prod.shaw.ca (shawidc-mo1.cg.shawcable.net [24.71.223.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5D21343D1F; Fri, 17 Dec 2004 02:33:07 +0000 (GMT) (envelope-from colin.percival@wadham.ox.ac.uk) Received: from pd2mr5so.prod.shaw.ca (pd2mr5so-qfe3.prod.shaw.ca [10.0.141.8]) by l-daemon (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0I8U00585HR7VO60@l-daemon>; Thu, 16 Dec 2004 19:33:07 -0700 (MST) Received: from pn2ml2so.prod.shaw.ca ([10.0.121.146]) by pd2mr5so.prod.shaw.ca (Sun ONE Messaging Server 6.0 HotFix 1.01 (built Mar 15 2004)) with ESMTP id <0I8U005K1HR7W830@pd2mr5so.prod.shaw.ca>; Thu, 16 Dec 2004 19:33:07 -0700 (MST) Received: from [192.168.0.60] (S0106006067227a4a.vc.shawcable.net [24.87.233.42])2003)) with ESMTP id <0I8U00HG2HR65E@l-daemon>; Thu, 16 Dec 2004 19:33:07 -0700 (MST) Date: Thu, 16 Dec 2004 18:33:05 -0800 From: Colin Percival In-reply-to: <41C20009.3080302@sofsis.cl> To: Phillip Neumann , freebsd-mobile@freebsd.org Message-id: <41C24561.4030202@wadham.ox.ac.uk> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Accept-Language: en-us, en X-Enigmail-Version: 0.86.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime References: <41C20009.3080302@sofsis.cl> User-Agent: Mozilla Thunderbird 0.9 (X11/20041107) cc: njl@freebsd.org Subject: Re: est, ich, cpufreq X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Dec 2004 02:33:08 -0000 Phillip Neumann wrote: > Im wondering whats the difference between est and ich? both softwares > has the same goals? Different hardware support. Enhanced Speedstep (aka. est) operates using processor and VRM support only, whereas the original speedstep (ich) uses chipset support. Other minor benefits of est over ich include having more frequencies available (typically 6 different frequencies, rather than 2), and having faster transition between modes (10 microseconds vs. several milliseconds IIRC). > when will be a release of cpufreq?.. I'm not sure, Nate (victim CC) is the one working on this, last I heard. > i understand, with it we can begin > to use our lappys for 4-5 housr without the power line? If you install the right driver (eg, ich or est) then you should get the improved battery life benefits which cpufreq would provide. Colin Percival