From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934645AbYEBMWe (ORCPT ); Fri, 2 May 2008 08:22:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934830AbYEBMWG (ORCPT ); Fri, 2 May 2008 08:22:06 -0400 Received: from wf-out-1314.google.com ([209.85.200.168]:29344 "EHLO wf-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934893AbYEBMWF (ORCPT ); Fri, 2 May 2008 08:22:05 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=qQzTxq2VbXxLhqu1bTV7Y/1CsdmxR4pteP31P6G7Up1CXeO+I/KR3ciT/1O2hXWXARZPguyR8d06THfdQbqApRQemCZ8phO0IJRf0Abf+1UJUeNaZOXzzykdtGzNI4fBjgZhnY+OvXcCRRK6fX2p8EOganiCkkCPPsckAncPD+E= Message-ID: <82e4877d0805020522o278ab3f5i21fc820084f85b97@mail.gmail.com> Date: Fri, 2 May 2008 08:22:04 -0400 From: "Parag Warudkar" To: "Frans Pop" Subject: Re: Horrendous Audio Stutter - current git Cc: "Peter Zijlstra" , "Ingo Molnar" , LKML In-Reply-To: <200805021406.55038.elendil@planet.nl> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <82e4877d0805011714m35a47753q58cca706b7af6557@mail.gmail.com> <200805021337.10809.elendil@planet.nl> <1209728372.13978.147.camel@twins> <200805021406.55038.elendil@planet.nl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. Mike recalls a regression that may be related - so it is possible you were running w/o the affecting change. Anyway - all is well in sched-land for now. Rejoice! Parag