From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266254AbUGJOMR (ORCPT ); Sat, 10 Jul 2004 10:12:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266257AbUGJOMR (ORCPT ); Sat, 10 Jul 2004 10:12:17 -0400 Received: from rproxy.gmail.com ([64.233.170.202]:6855 "HELO mproxy.gmail.com") by vger.kernel.org with SMTP id S266254AbUGJOMP convert rfc822-to-8bit (ORCPT ); Sat, 10 Jul 2004 10:12:15 -0400 Message-ID: <2a4f155d040710071244057045@mail.gmail.com> Date: Sat, 10 Jul 2004 17:12:14 +0300 From: =?ISO-8859-1?Q?ismail_d=F6nmez?= To: Roger Larsson Subject: Re: (att. ismail) [announce] [patch] Voluntary Kernel Preemption Patch Cc: linux-kernel@vger.kernel.org In-Reply-To: <200407101503.58124.roger.larsson@norran.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT References: <200407101503.58124.roger.larsson@norran.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I made artswrapper suid root. It's still skipping during cp -rf big_folder copy operation. Jack is running with --realtime and I use realtime lsm module to give it realtime capabilities. doing a modprobe realtime gid=17 where 17 is "audio" group which happens to contain "cartman" user too. On Sat, 10 Jul 2004 15:03:58 +0200, Roger Larsson 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. > > Are you sure that both artsd and jackd is run as RT processes? > artsd needs 'artswrapper' as suid root and option in kconfig enabled. > (never versions of amarok warns the user if this is not the case...) > > [You can try to run the same as root to be sure] > > But it does sound as a io scheduler problem - but 2-3 seconds!? > > /RogerL > > -- > Roger Larsson > Skellefteċ > Sweden > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- Time is what you make of it