From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753342AbYIUVAP (ORCPT ); Sun, 21 Sep 2008 17:00:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752657AbYIUVAB (ORCPT ); Sun, 21 Sep 2008 17:00:01 -0400 Received: from doppler.zen.co.uk ([212.23.3.27]:38316 "EHLO doppler.zen.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752460AbYIUVAA (ORCPT ); Sun, 21 Sep 2008 17:00:00 -0400 Subject: Re: How how latent should non-preemptive scheduling be? From: Matt Keenan To: Sitsofe Wheeler Cc: linux-kernel@vger.kernel.org, Ingo Molnar In-Reply-To: <48D1741A.7010508@yahoo.com> References: <48D1741A.7010508@yahoo.com> Content-Type: text/plain Date: Sun, 21 Sep 2008 21:56:55 +0100 Message-Id: <1222030615.10469.10.camel@bazbox> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 7bit X-Originating-Smarthost02-IP: [82.69.27.224] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2008-09-17 at 22:18 +0100, Sitsofe Wheeler wrote: > Hi, > > I have an EeePC 900 (Intel Celeron 900Mhz) and it seems to be skipping > while playing sound through various desktop apps with a 2.6.27rc6 > kernel. It is running off an SD card which really shows up slow writes > but the sound is seemingly skipping even when ext3 is not being used. [snip snip] If you use ALSA you could write a custom .asoundrc file and increase ALSA's default buffer size, this gives the hardware a longer buffer to play which may work around the problem. This used to do the trick for me with the old scheduler with slow machines. Not a fix but if nothing else works... Matt