Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932688AbVJ0XSv (ORCPT ); Thu, 27 Oct 2005 19:18:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932689AbVJ0XSv (ORCPT ); Thu, 27 Oct 2005 19:18:51 -0400 Received: from maggie.cs.pitt.edu ([130.49.220.148]:28893 "EHLO maggie.cs.pitt.edu") by vger.kernel.org with ESMTP id S932688AbVJ0XSu (ORCPT ); Thu, 27 Oct 2005 19:18:50 -0400 From: Claudio Scordino To: linux-kernel@vger.kernel.org, kernelnewbies@nl.linux.org Subject: The "best" value of HZ Date: Fri, 28 Oct 2005 01:18:41 +0200 User-Agent: KMail/1.8 MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <200510280118.42731.cloud.of.andor@gmail.com> X-Spam-Score: -1.665/8 BAYES_00 SA-version=3.000002 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1032 Lines: 25 Hi, during the last years there has been a lot of discussion about the "best" value of HZ... On i386 was 100, then became 1000, and finally was set to 250. I'm thinking to do an evaluation of this parameter using different architectures. Has anybody thought to give the possibility to modify the value of HZ at boot time instead of at compile time ? This would allow to easily test different values on different machines and create a table containing the "best" value for each architecture... At this moment, instead, we have to recompile the kernel for each different value :( Do you think there would be much work to do that ? Do you think it would be a desired feature the knowledge of the best value for each architecture with more precision ? Thanks, Claudio - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/