From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: Re: Dynamic frequency governor Date: Sun, 19 Oct 2003 14:24:23 +0100 Sender: cpufreq-bounces@www.linux.org.uk Message-ID: <20031019132422.GE8018@redhat.com> References: Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: cpufreq-bounces@www.linux.org.uk Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Moore, Robert" Cc: cpufreq@www.linux.org.uk On Fri, Oct 17, 2003 at 02:14:38PM -0700, Moore, Robert wrote: > I've been chartered to implement a multi-state algorithm for Linux; > this will be a new governor that adjusts the CPU frequency based upon > percent CPU utilization as reported from the kernel idle handler. > > Has any work been done (or is being done) in this area? I don't want to > rewrite the wheel. There are several patents in this area (I think from Hitachi, I forget exactly) It has come up before on the list, so should be in the archives. Unless you can get a grant from the holder that it may be used in GPL code, this has zero chance of being merged to mainline. Dave -- Dave Jones http://www.codemonkey.org.uk