From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161034AbXDXM4J (ORCPT ); Tue, 24 Apr 2007 08:56:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161113AbXDXM4J (ORCPT ); Tue, 24 Apr 2007 08:56:09 -0400 Received: from [70.254.190.220] ([70.254.190.220]:44078 "EHLO server.willdawg" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1161034AbXDXM4H (ORCPT ); Tue, 24 Apr 2007 08:56:07 -0400 Date: Tue, 24 Apr 2007 12:56:03 +0000 (GMT) From: William Heimbigner X-X-Sender: icxcnika@server.thyself To: Michal Piotrowski cc: linux-kernel@vger.kernel.org Subject: Re: cpufreq default governor In-Reply-To: <6bffcb0e0704240550x2c47cd1ap8101a9b0db5c6c7d@mail.gmail.com> Message-ID: References: <6bffcb0e0704240134w45007473p5694718a0aae08fc@mail.gmail.com> <6bffcb0e0704240550x2c47cd1ap8101a9b0db5c6c7d@mail.gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 24 Apr 2007, Michal Piotrowski wrote: > On 24/04/07, William Heimbigner wrote: >> On Tue, 24 Apr 2007, Michal Piotrowski wrote: >> >> > Hi William, >> > >> > On 24/04/07, William Heimbigner wrote: >> > > Question: is there some reason that kconfig does not allow for >> > > default >> > > governors of conservative/ondemand/powersave? >> > >> > Performance? >> > >> > > I'm not aware of any reason why one of those governors could not be >> > > used >> > > as default. >> > >> > My hardware doesn't work properly with ondemand governor. I hear >> > strange noises when frequency is changed. >> > >> >> That doesn't mean it isn't working, though. > > I didn't say that cpufreq ondemand is broken. It's a hardware problem. > >> I here weird noises if the cpu >> is clocked anywhere from 333MHz to 1GHz (sounds like an RD-D2 beeping >> noises in ultra high pitch?) > > Yes, something like that. Is it actually "not working" though, even at the hardware level? To my knowledge those noises are normal, and aren't even signs of a harware problem. I believe it is the natural result of changing frequencies at any time. If you change frequencies, especially in the low end of available frequencies, you should hear a very brief noise. A governor such as ondemand, which is rapidly switching the frequency from say, 333 MHz to 2.66 GHz, is likely to make this much more noticable. William Heimbigner icxcnika@mar.tar.cc