From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wes Felter Subject: Re: cpufreq throttling driver Date: Thu, 17 May 2007 12:35:35 -0500 Message-ID: References: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=m.gmane.org+glkc-cpufreq=m.gmane.org@lists.linux.org.uk Content-Type: text/plain; charset="us-ascii"; format="flowed" To: cpufreq@lists.linux.org.uk Matthieu CASTET wrote: > Hi, > > I have a desktop cpu supporting only throttling (no C-state and no P-state > (acpi-cpufreq refuse to load)). > > Does it make sense to use throttling to save some power ? Not really. You can save a little power but you will lose a lot of performance, making your system less energy-efficient. > If yes why aren't there a cpufreq driver for managing throttling ? It's called p4-clockmod. Don't use it. If you want to save power, get a new CPU. Wes Felter - wesley@felter.org