From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263100AbVG3SSm (ORCPT ); Sat, 30 Jul 2005 14:18:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263095AbVG3SQQ (ORCPT ); Sat, 30 Jul 2005 14:16:16 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:52899 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S263096AbVG3SOF (ORCPT ); Sat, 30 Jul 2005 14:14:05 -0400 Subject: Re: Power consumption HZ100, HZ250, HZ1000: new numbers From: Lee Revell To: Zwane Mwaikambo Cc: Marc Ballarin , linux-kernel@vger.kernel.org In-Reply-To: References: <20050730004924.087a7630.Ballarin.Marc@gmx.de> <1122678943.9381.44.camel@mindpipe> <20050730120645.77a33a34.Ballarin.Marc@gmx.de> <1122746718.14769.4.camel@mindpipe> Content-Type: text/plain Date: Sat, 30 Jul 2005 14:14:02 -0400 Message-Id: <1122747242.14769.8.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.2.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2005-07-30 at 12:18 -0600, Zwane Mwaikambo wrote: > On Sat, 30 Jul 2005, Lee Revell wrote: > > > So it looks like artsd wastes way more power DMAing a bunch of silent > > pages to the sound card than HZ=1000. > > > > There's nothing the ALSA layer can do about this, it's a KDE bug. > > > > I think this is a good argument for leaving HZ at 1000 until some of > > these userspace bugs are fixed. > > It's already 'fixed' just set artsd to release the sound device after some > idle time. It's in the "Auto-Suspend" seection of the KDE sound system > control module. > It's useless if not enabled by default. Lee