Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753772AbZA3I4G (ORCPT ); Fri, 30 Jan 2009 03:56:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751618AbZA3Izy (ORCPT ); Fri, 30 Jan 2009 03:55:54 -0500 Received: from mout.perfora.net ([74.208.4.194]:64660 "EHLO mout.perfora.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751467AbZA3Izy (ORCPT ); Fri, 30 Jan 2009 03:55:54 -0500 Subject: Re: scheduler nice 19 versus 'idle' behavior / static low-priority scheduling From: Nathanael Hoyle To: Mike Galbraith Cc: Linux Kernel Mailing List In-Reply-To: <1233302861.6061.14.camel@marge.simson.net> References: <1233294584.28741.2.camel@localhost> <1233297635.17301.11.camel@localhost> <1233302349.17301.27.camel@localhost> <1233302861.6061.14.camel@marge.simson.net> Content-Type: text/plain Date: Fri, 30 Jan 2009 03:55:47 -0500 Message-Id: <1233305747.17301.33.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 Content-Transfer-Encoding: 7bit X-Provags-ID: V01U2FsdGVkX18kH75jUUh2dgsN7czWgZLKpq+zlqM9v8zKgeo csZ1nLlAXZIGveV+bUOCivGX1+kaZaKHHzxRAd22ELZYdmXVZH axWFE0wxiakqvjvlLjMyFic/4bNzNjc Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 896 Lines: 27 On Fri, 2009-01-30 at 09:07 +0100, Mike Galbraith wrote: > On Fri, 2009-01-30 at 02:59 -0500, Nathanael Hoyle wrote: > > > I am running foldingathome under it at the moment, and it seems to be > > improving the situation somewhat, but I still need/want to test with > > Mike's referenced patches. > > You will most definitely encounter evilness running SCHED_IDLE tasks in > a kernel without the SCHED_IDLE fixes. > > -Mike > Mike, Any reason not to apply this fairly simple patch against the 2.6.27 series kernel I'm running now? Are there other relevant changes you're aware of in the later kernel revs for this problem? Thanks, -Nathanael -- 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/