Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933794AbYAaNAr (ORCPT ); Thu, 31 Jan 2008 08:00:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933202AbYAaNAb (ORCPT ); Thu, 31 Jan 2008 08:00:31 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:60366 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932830AbYAaNAa (ORCPT ); Thu, 31 Jan 2008 08:00:30 -0500 Subject: Re: High wake up latencies with FAIR_USER_SCHED From: Peter Zijlstra To: Guillaume Chazarain Cc: vatsa@linux.vnet.ibm.com, Ingo Molnar , LKML , dhaval@linux.vnet.ibm.com In-Reply-To: <3d8471ca0801310449y426742b8yf711c7859b105469@mail.gmail.com> References: <3d8471ca0801271201o5a41955cg552ef06a2f821285@mail.gmail.com> <20080128023129.GD1044@linux.vnet.ibm.com> <3d8471ca0801280857m2ea8518ds2ad8d5346f756a0e@mail.gmail.com> <3d8471ca0801281213l5ec62984i763afb22216cb423@mail.gmail.com> <1201776461.28547.289.camel@lappy> <3d8471ca0801310449y426742b8yf711c7859b105469@mail.gmail.com> Content-Type: text/plain Date: Thu, 31 Jan 2008 14:00:23 +0100 Message-Id: <1201784423.28547.302.camel@lappy> Mime-Version: 1.0 X-Mailer: Evolution 2.21.5 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 620 Lines: 18 On Thu, 2008-01-31 at 13:49 +0100, Guillaume Chazarain wrote: > On 1/31/08, Peter Zijlstra wrote: > > Does something like this help? > > I made it compile by open coding undefined macros instead of > refactoring the whole file. > But it didn't affect wake up latencies. Ah, well, what can one expect from mid-night ideas :-) Thanks for testing! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/