From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262068AbVGaXao (ORCPT ); Sun, 31 Jul 2005 19:30:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262088AbVGaXan (ORCPT ); Sun, 31 Jul 2005 19:30:43 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:37540 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S262083AbVGaX3q (ORCPT ); Sun, 31 Jul 2005 19:29:46 -0400 Date: Mon, 1 Aug 2005 01:29:41 +0200 From: Pavel Machek To: Lee Revell Cc: James Bruce , Marc Ballarin , linux-kernel@vger.kernel.org Subject: Re: Power consumption HZ100, HZ250, HZ1000: new numbers Message-ID: <20050731232941.GG27580@elf.ucw.cz> References: <20050730120645.77a33a34.Ballarin.Marc@gmx.de> <1122746718.14769.4.camel@mindpipe> <20050730195116.GB9188@elf.ucw.cz> <1122753864.14769.18.camel@mindpipe> <20050730201049.GE2093@elf.ucw.cz> <42ED32D3.9070208@andrew.cmu.edu> <20050731211020.GB27433@elf.ucw.cz> <42ED4CCF.6020803@andrew.cmu.edu> <20050731224752.GC27580@elf.ucw.cz> <1122852234.13000.27.camel@mindpipe> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1122852234.13000.27.camel@mindpipe> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > I'm pretty sure at least one distro will go with HZ<300 real soon now > > ;-). > > > > Any idea what their official recommendation for people running apps that > require the 1ms sleep resolution is? Something along the lines of "Get > bent"? So you busy wait for 1msec, big deal. Some machines can't even keep time properly with HZ=1000. Official recommendation is likely "help us with CONFIG_NO_IDLE_HZ" or "get over it". Pavel -- if you have sharp zaurus hardware you don't need... you know my address