From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: Which cpufreq driver is best for ... Date: Wed, 3 Sep 2003 21:30:41 +0200 Sender: cpufreq-bounces@www.linux.org.uk Message-ID: <20030903193040.GB30360@brodo.de> References: <20030903055749.GA21721@gamma.logic.tuwien.ac.at> <3F55D261.6010407@basmevissen.nl> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <3F55D261.6010407@basmevissen.nl> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: cpufreq-bounces@www.linux.org.uk Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Bas Mevissen Cc: cpufreq@www.linux.org.uk On Wed, Sep 03, 2003 at 01:37:05PM +0200, Bas Mevissen wrote: > Norbert Preining wrote: > > >Hi! > > > >Which cpufreq driver is best for > > Mobile Intel(R) Pentium(R) 4 - M CPU 2.20GHz > >I can use the > > p4-clockmod > >and the > > speedstep-ich > >With the p4-clockmod I can adapt the freq between 274MHz and 2.2GHz, > >while with speedstep-ich I can only go between 1.2GHz and 2.2GHz. So I > >guess p4-clockmod is superior for my chip/cpu. > > > > It depends on what you want. If you want to get battery life to the max > (and power consumption/heat production as low as possible), you need > p4-clockmod. Well, if you run CPU hogs, the p4-clockmod driver indeed prolongs battery life and reduces heat production. But less work is done, also. So the ratio amount of energy ---------------- amount of work is better (lower) for the speedstep-ich driver than for the p4-clockmod driver. Dominik