From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266821AbUGLNQF (ORCPT ); Mon, 12 Jul 2004 09:16:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266820AbUGLNQF (ORCPT ); Mon, 12 Jul 2004 09:16:05 -0400 Received: from cantor.suse.de ([195.135.220.2]:18146 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S266817AbUGLNPw (ORCPT ); Mon, 12 Jul 2004 09:15:52 -0400 Date: Mon, 12 Jul 2004 15:14:40 +0200 Message-ID: From: Takashi Iwai To: ismail =?ISO-8859-1?Q?d=F6nmez?= Cc: Ingo Molnar , Redeeman , LKML Mailinglist , Arjan van de Ven Subject: Re: [announce] [patch] Voluntary Kernel Preemption Patch In-Reply-To: <2a4f155d04071206091858afb2@mail.gmail.com> References: <20040709182638.GA11310@elte.hu> <1089407610.10745.5.camel@localhost> <20040710080234.GA25155@elte.hu> <20040710085044.GA14262@elte.hu> <2a4f155d040710035512f21d34@mail.gmail.com> <2a4f155d04071206091858afb2@mail.gmail.com> User-Agent: Wanderlust/2.10.1 (Watching The Wheels) SEMI/1.14.5 (Awara-Onsen) FLIM/1.14.5 (Demachiyanagi) APEL/10.6 MULE XEmacs/21.4 (patch 15) (Security Through Obscurity) (i386-suse-linux) MIME-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org At Mon, 12 Jul 2004 16:09:14 +0300, ismail dönmez wrote: > > I dont't have NPTL. Then the problem must be on artsd, possibly handling the job with a normal scheduling. Stalling for 2-3 seconds with RT task is quite unusual. Takashi > > On Mon, 12 Jul 2004 12:48:48 +0200, Takashi Iwai wrote: > > At Sat, 10 Jul 2004 13:55:25 +0300, > > ismail dönmez wrote: > > > > > > Tested on 2.6.7-bk20, Pentium3 700 mhz, 576 mb RAM > > > > > > I did cp -rf big_folder new_folder . Then opened up a gui ftp client > > > and music in amarok started to skip like for 2-3 seconds. > > > > > > Btw Amarok uses Artsd ( KDE Sound Daemon ) which in turn set to use > > > Jack Alsa Backend. > > > > Did you run JACK on linuxthreads (with LD_ASSUME_KERNEL=2.4.xx) ? > > > > On NPTL with jackstart, JACK clients don't get set to SCHED_FIFO > > correctly. > > > > > > Takashi > > > > > -- > Time is what you make of it >