From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bas Mevissen Subject: Re: Pentium-M (Centrino): no power saved? Date: Mon, 22 Sep 2003 10:00:05 +0200 Sender: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk Message-ID: <3F6EAC05.7090009@basmevissen.nl> References: <3F6ACB0E.8050009@basmevissen.nl> 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: , Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Jan Rychter Cc: cpufreq@www.linux.org.uk Jan Rychter wrote: >>>>>>"Bas" == Bas Mevissen writes: > > > 11048mW 900MHz, C2 only > 10560mW 600MHz, C2 only > > 9306mW 900MHz, C3 allowed > 9306mW 600MHz, C3 allowed > > So, it seems that changing the frequency actually buys very little if > you're stuck in C2 (about 0.5W) and exactly NOTHING if the machine is > idle and can use C3. > Do you measure this from the ACPI baatery output? I still suspect that your CPU is only running at low speed all the time. So please boot with AC adapter in and check /proc/cpuinfo and reboot without AC adapter and check again. In the meantime, get bogomips as it is worthless as a benchmark, but usefull to compare :-) Bas.