From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262100AbVFRGgL (ORCPT ); Sat, 18 Jun 2005 02:36:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262102AbVFRGgK (ORCPT ); Sat, 18 Jun 2005 02:36:10 -0400 Received: from gate.crashing.org ([63.228.1.57]:26001 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S262100AbVFRGgH (ORCPT ); Sat, 18 Jun 2005 02:36:07 -0400 Subject: Re: [PATCH] Dynamic tick for x86 version 050610-1 From: Benjamin Herrenschmidt To: hugang@soulinfo.com Cc: Tony Lindgren , linux-kernel@vger.kernel.org, "Pallipadi, Venkatesh" , Jonathan Corbet , Pavel Machek , Bernard Blackham , Christian Hesse , Zwane Mwaikambo In-Reply-To: <20050618033419.GA6476@hugang.soulinfo.com> References: <20050602013641.GL21597@atomide.com> <200506021030.50585.mail@earthworm.de> <20050602174219.GC21363@atomide.com> <20050603223758.GA2227@elf.ucw.cz> <20050610041706.GC18103@atomide.com> <20050610091515.GH4173@elf.ucw.cz> <20050610151707.GB7858@atomide.com> <20050610221501.GB7575@atomide.com> <20050618033419.GA6476@hugang.soulinfo.com> Content-Type: text/plain Date: Sat, 18 Jun 2005 16:30:32 +1000 Message-Id: <1119076233.18247.27.camel@gaston> Mime-Version: 1.0 X-Mailer: Evolution 2.2.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > I'm try to port it powerpc, Here is a patch. > > Port Dynamic Tick Timer to new platform is easy. :) > 1) Find the reprogram timer interface. > 2) do a hook in the idle function. > > That worked on my PowerBookG4 12'. Did you get a measurable gain on power consumption ? Last time I toyed with this, I didn't. Ben.