From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263812AbTLTFP1 (ORCPT ); Sat, 20 Dec 2003 00:15:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263821AbTLTFP1 (ORCPT ); Sat, 20 Dec 2003 00:15:27 -0500 Received: from port-212-202-159-243.reverse.qsc.de ([212.202.159.243]:5101 "EHLO mail.onestepahead.de") by vger.kernel.org with ESMTP id S263812AbTLTFPZ (ORCPT ); Sat, 20 Dec 2003 00:15:25 -0500 Subject: Re: 2.6 vs 2.4 regression when running gnomemeeting From: Christian Meder To: Nick Piggin Cc: Con Kolivas , linux kernel mailing list , William Lee Irwin III In-Reply-To: <3FE3D0CB.603@cyberone.com.au> References: <1071864709.1044.172.camel@localhost> <1071885178.1044.227.camel@localhost> <3FE3B61C.4070204@cyberone.com.au> <200312201355.08116.kernel@kolivas.org> <1071891168.1044.256.camel@localhost> <3FE3C6FC.7050401@cyberone.com.au> <1071893802.1363.21.camel@localhost> <3FE3D0CB.603@cyberone.com.au> Content-Type: text/plain Message-Id: <1071897314.1363.43.camel@localhost> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Sat, 20 Dec 2003 06:15:16 +0100 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2003-12-20 at 05:32, Nick Piggin wrote: > Christian Meder wrote: > > >On Sat, 2003-12-20 at 04:50, Nick Piggin wrote: > > > >>(although not much Con) > >> > > > >right. Ok I'm running now 2.6.0 with Nick's v28p1: The results without > >load and with kernel compile load are attached. On nice level 0 I get > >now the stuttering sound which I described in the previous mail. When I > >renice gnomemeeting to -10 it's actually usable but not as good as in > >2.4.2x. It's still sensitive to window movement and X activity. Two > >subjective observations are that the nice levels haven't got such a big > >impact in Nick's scheduler they used to have and that the default > >behaviour gnomemeetingwise is better than in earlier Nick schedulers. > > > > No, nice levels don't have such a big impact. That is the last big > think I have to fix, but thats another story... > > At nice -10, there is basically nothing more the scheduler can do > for it (nice -20 will be a tiny bit better again). > > I'd say its due to either sound drivers or your app doing something > different when running in 2.6. I just tried hammering on the sound drivers on the playback side. So I put on a kernel compile, a find | cat >/dev/null and ogg123 playback. Playback performed largely unimpressed from the load level, no skips or whatever. Even adding a gnomemeeting connection didn't decrease audio playback. My guess is that the audio drivers are ok even more so because otherwise OSS _and_ ALSA would be broken for my soundcard. That would leave me with two possibilities: 2.6. is doing something different in the gnomemeeting case or gnomemeeting is doing something different in the 2.6 case. A cursory look at the gnomemeeting sources didn't give me the impression that it's doing anything which would be affected by 2.6 deployment but I'll ask on the gnomemeeting-devel list for advice. Thanks for all your help, I hope I can nail it soon, Christian -- Christian Meder, email: chris@onestepahead.de What's the railroad to me ? I never go to see Where it ends. It fills a few hollows, And makes banks for the swallows, It sets the sand a-blowing, And the blackberries a-growing. (Henry David Thoreau)