From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763011AbXELARf (ORCPT ); Fri, 11 May 2007 20:17:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755422AbXELAR2 (ORCPT ); Fri, 11 May 2007 20:17:28 -0400 Received: from waste.org ([66.93.16.53]:55826 "EHLO waste.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754709AbXELAR1 (ORCPT ); Fri, 11 May 2007 20:17:27 -0400 Date: Fri, 11 May 2007 19:17:19 -0500 From: Matt Mackall To: Arjan van de Ven Cc: Linux Kernel Mailing List , linux-acpi@vger.kernel.org Subject: Re: [announce] Intel announces the PowerTOP utility for Linux Message-ID: <20070512001718.GY11166@waste.org> References: <4644F726.1050806@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4644F726.1050806@linux.intel.com> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 11, 2007 at 04:07:18PM -0700, Arjan van de Ven wrote: > > What's eating the battery life of my laptop? Why isn't it many more > hours? Which software component causes the most power to be burned? > These are important questions without a good answer... until now. I get: No detailed statistics available; please enable the CONFIG_TIMER_STATS kernel option with: $ zgrep STATS /proc/config.gz # CONFIG_TASKSTATS is not set # CONFIG_SCHEDSTATS is not set CONFIG_TIMER_STATS=y -- Mathematics is the supreme nostalgia of our time.