From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264372AbTLKHaQ (ORCPT ); Thu, 11 Dec 2003 02:30:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264396AbTLKHaQ (ORCPT ); Thu, 11 Dec 2003 02:30:16 -0500 Received: from mail-03.iinet.net.au ([203.59.3.35]:40075 "HELO mail.iinet.net.au") by vger.kernel.org with SMTP id S264372AbTLKHaK (ORCPT ); Thu, 11 Dec 2003 02:30:10 -0500 Message-ID: <3FD81CFE.30005@cyberone.com.au> Date: Thu, 11 Dec 2003 18:30:06 +1100 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030827 Debian/1.4-3 X-Accept-Language: en MIME-Version: 1.0 To: Jean-Marc Valin CC: "Martin J. Bligh" , Linux Kernel Subject: Re: Increasing HZ (patch for HZ > 1000) References: <1071122742.5149.12.camel@idefix.homelinux.org> <1288980000.1071126438@[10.10.2.4]> <1071126929.5149.24.camel@idefix.homelinux.org> In-Reply-To: <1071126929.5149.24.camel@idefix.homelinux.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jean-Marc Valin wrote: >>Why would you want to *increase* HZ? I'd say 1000 is already too high >>personally, but I'm curious what you'd want to do with it? Embedded >>real-time stuff? >> > >Actually, my reasons may sound a little strange, but basically I'd be >fine with HZ=1000 if it wasn't for that annoying ~1 kHz sound when the >CPU is idle (probably bad capacitors). By increasing HZ to 10 kHz, the >sound is at a frequency where the ear is much less sensitive. Anyway, I >thought some people might be interested in high HZ for other (more >fundamental) reasons, so I posted the patch. > Heh! Does it scare your dog away? ;)