From owner-freebsd-questions@FreeBSD.ORG Sat Jan 27 17:09:47 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B6B4B16A403 for ; Sat, 27 Jan 2007 17:09:47 +0000 (UTC) (envelope-from fk@rosy.dyndns.org) Received: from rosy.dyndns.org (softbank220038116052.bbtec.net [220.38.116.52]) by mx1.freebsd.org (Postfix) with SMTP id 095F913C483 for ; Sat, 27 Jan 2007 17:09:46 +0000 (UTC) (envelope-from fk@rosy.dyndns.org) Received: (qmail 35469 invoked from network); 27 Jan 2007 16:46:02 -0000 Received: from unknown (HELO localhost) (127.0.0.1) by localhost with SMTP; 27 Jan 2007 16:46:02 -0000 To: freebsd-questions@freebsd.org X-Mailer: Mew version 1.94.2 on Emacs 19.34 / Mule 2.3 (SUETSUMUHANA) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: <20070128014602A.fk@rosy.dyndns.org> Date: Sun, 28 Jan 2007 01:46:02 +0900 From: FK X-Dispatcher: imput version 20000228(IM140) Lines: 21 Subject: Pentium 3 Clock Frequency Control X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 27 Jan 2007 17:09:47 -0000 Hi all, Is it posible to control Pentium 3 clock frequency on FreeBSD? The purpose is to reduce the power consumption and lengthen battery life. In addition, how can we know what speed of cpu clock frequecy a cpu supports and what speed a cpu take at any given time? I suppose that a command which returns each information exist. Well, a couple years ago I patched to, if I remember correctly, 5.4 kernel and it made this need possible at least on Pentium M. I tried to find the web page but I failed. I am using FreeBSD6.0-RELEASE now. Thank you. -- FK.