From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261956AbTLUBti (ORCPT ); Sat, 20 Dec 2003 20:49:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261957AbTLUBti (ORCPT ); Sat, 20 Dec 2003 20:49:38 -0500 Received: from port-212-202-159-243.reverse.qsc.de ([212.202.159.243]:57220 "EHLO mail.onestepahead.de") by vger.kernel.org with ESMTP id S261956AbTLUBtg (ORCPT ); Sat, 20 Dec 2003 20:49:36 -0500 Subject: Re: 2.6 vs 2.4 regression when running gnomemeeting From: Christian Meder To: Marc Schiffbauer Cc: linux-kernel@vger.kernel.org In-Reply-To: <20031220193402.GA32297@lisa> References: <1071864709.1044.172.camel@localhost> <20031220193402.GA32297@lisa> Content-Type: text/plain Message-Id: <1071971341.1025.98.camel@localhost> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Sun, 21 Dec 2003 02:49:03 +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 20:34, Marc Schiffbauer wrote: > * Christian Meder schrieb am 19.12.03 um 21:11 Uhr: > > Hi, > > > > I've got a longstanding regression in gnomemeeting usage when switching > > between 2.4 and 2.6 kernels. > > > > Phenomenon: > > Without load gnomemeeting VOIP connections are fine. As soon as some > > load like a kernel compile is put on the laptop the gnomemeeting audio > > stream is cut to pieces and gets unintelligible . On 2.4.2x I don't get > > even the slightest distortion in the audio stream under load. I played > > around with different nice levels with no success. The problem persisted > > during the whole 2.6.0-test series no matter whether I used -mm kernels > > or pristine Linus kernels. Even when nicing the kernel compile to +19 > > the distortions start right away. I tried Nick Piggin's scheduler which > > fared slightly better after changing the nice level of gnomemeeting to > > -10 but it's still a far cry from the 2.4.2x feeling without any > > fiddling with nice values. > > > > Any hints where to start looking are greatly appreciated. > > > > Hi Christian, > > is it true, that your X-Server runs with a higher priority? Perhaps > you are a Debian user? > > If thats the case try to make your X-Server run with normal > priority. That fixed sound problems here too. I had the problem that > I could not play an mp3 file without distortion while compiling a > kernel. Oh I tried gnomemeeting, the Xserver and the kernel compile at different nice levels without significant changes. Additionally I don't have any problems with audio playback under load, it's just that gnomemeeting is performing worse than in 2.4.2x. 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)