From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: Why does my CPU switch to high speed? Date: Fri, 22 Nov 2002 21:14:44 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20021122201444.GD2117@brodo.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Jan Rychter Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org On Sat, Nov 09, 2002 at 02:29:14PM +0100, Jan Rychter wrote: > What makes my CPU (Intel Pentium IIIm, speedstep) switch to maximum > performance mode? > > ACPI says: > > [14:25] tnuctip:/root#cat /proc/acpi/processor/CPU0/performance > > [14:27] tnuctip:/root# > > if I use the "speedstep" utility to set the clock to half-speed (works > great), everything is fine, until the machine wants to spend a lot of > CPU in kernel space (ACPI eating CPU or my wireless network drivers > crashing and eating CPU). Then the CPU somehow switches to maximum > performance. What "speedstep" utility? Marc's program? Or cpufreq? Dominik ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf