From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934844AbYEBNVd (ORCPT ); Fri, 2 May 2008 09:21:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758584AbYEBNV0 (ORCPT ); Fri, 2 May 2008 09:21:26 -0400 Received: from E23SMTP04.au.ibm.com ([202.81.18.173]:36869 "EHLO e23smtp04.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756048AbYEBNVZ (ORCPT ); Fri, 2 May 2008 09:21:25 -0400 Date: Fri, 2 May 2008 18:51:17 +0530 From: Dhaval Giani To: Parag Warudkar Cc: Frans Pop , Peter Zijlstra , Ingo Molnar , LKML Subject: Re: Horrendous Audio Stutter - current git Message-ID: <20080502132117.GA4912@linux.vnet.ibm.com> Reply-To: Dhaval Giani References: <82e4877d0805011714m35a47753q58cca706b7af6557@mail.gmail.com> <200805021337.10809.elendil@planet.nl> <1209728372.13978.147.camel@twins> <200805021406.55038.elendil@planet.nl> <82e4877d0805020522o278ab3f5i21fc820084f85b97@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <82e4877d0805020522o278ab3f5i21fc820084f85b97@mail.gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 02, 2008 at 08:22:04AM -0400, Parag Warudkar wrote: > On Fri, May 2, 2008 at 8:06 AM, Frans Pop wrote: > > Note (mostly for Parag) that I had GROUP_SCHED disabled for these tests, but > > for me that did make not any difference with my 2.6.25-rc tests for this > > issue, nor with my tests using sched-devel earlier in the .26 merge window. > > > > Strange - without the _enqueue patch from Peter, stutter is reduced to > an almost acceptable level for me if I just disable GROUP_SCHED. > With Peter's patch - I have tested multiple times and the stutter is > completely eliminated. So +1 for Peter's patch. > Not really, we can do better. I still see stutters and noticable delays in keypresses making it to the console even with Peter's patches. /me tries to fix this one :-/ Peter, any more patches to try out? thanks, -- regards, Dhaval