From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: Centrino not scaling to lowest frequency Date: Wed, 24 Aug 2005 12:50:02 +0200 Message-ID: <20050824105002.GC12792@dominikbrodowski.de> References: <200508152344.11572.fexpop@onlinehome.de> <20050816080625.GE9150@dominikbrodowski.de> <200508181847.48291.fexpop@onlinehome.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <200508181847.48291.fexpop-53koH/AXb86i2/dY4+mD5w@public.gmane.org> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Felix Homann Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi, On Thu, Aug 18, 2005 at 06:47:48PM +0200, Felix Homann wrote: > On the other hand, in Windows I _do_ get 600 MHz without any further trickery. > And at 600 MHz it seems to give me a lot more battery life, too. How does > that work? That's because other Operating Systems do "throttling" on top of "CPU frequency scaling", even though that doesn't save you any energy. The better energy usage rates of Windows are a known problem; hopefully the dynamic tick patch will improve the situation in this regard. Dominik ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf