From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761791AbZJNNl6 (ORCPT ); Wed, 14 Oct 2009 09:41:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761781AbZJNNl6 (ORCPT ); Wed, 14 Oct 2009 09:41:58 -0400 Received: from lucidpixels.com ([75.144.35.66]:56811 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761355AbZJNNl5 (ORCPT ); Wed, 14 Oct 2009 09:41:57 -0400 Date: Wed, 14 Oct 2009 09:41:21 -0400 (EDT) From: Justin Piszcz To: linux-kernel@vger.kernel.org Subject: Re: Question regarding i5/i7 CPUs (1156) - Speed Bins In-Reply-To: Message-ID: References: User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 13 Oct 2009, Justin Piszcz wrote: > Hello, > > In order to gain the acceleration e.g. 2.93GHz -> 3.6GHz for a single thread, > does one need to use a cpu daemon? > > e.g., > powernowd - control cpu speed and voltage using 2.6 kernel interface > > Or so? > > Or does this happen at the BIOS level without the OS' intervention? > > Justin. > One follow-up question, is there anyway to verify that it is working? Justin.