Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2992689AbWJTShG (ORCPT ); Fri, 20 Oct 2006 14:37:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S2992577AbWJTShG (ORCPT ); Fri, 20 Oct 2006 14:37:06 -0400 Received: from www.osadl.org ([213.239.205.134]:32179 "EHLO mail.tglx.de") by vger.kernel.org with ESMTP id S2992689AbWJTShD (ORCPT ); Fri, 20 Oct 2006 14:37:03 -0400 Subject: Re: various laptop nagles - any suggestions? (note: 2.6.19-rc2-mm1 but applies to multiple kernels) From: Thomas Gleixner Reply-To: tglx@linutronix.de To: Andrew Morton Cc: teunis , linux-kernel@vger.kernel.org, Dmitry Torokhov , Ingo Molnar In-Reply-To: <20061020112627.04a4035a.akpm@osdl.org> References: <4537A25D.6070205@wintersgift.com> <20061019194157.1ed094b9.akpm@osdl.org> <4538F9AD.8000806@wintersgift.com> <20061020110746.0db17489.akpm@osdl.org> <1161368034.5274.278.camel@localhost.localdomain> <20061020112627.04a4035a.akpm@osdl.org> Content-Type: text/plain Date: Fri, 20 Oct 2006 20:37:54 +0200 Message-Id: <1161369474.5274.280.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1315 Lines: 33 On Fri, 2006-10-20 at 11:26 -0700, Andrew Morton wrote: > On Fri, 20 Oct 2006 20:13:54 +0200 > Thomas Gleixner wrote: > > > > Also, NO_HZ breaks my laptop (and presumably quite a few others) quite > > > horridly, which means nobody can ship the feature. Some runtime > > > turn-it-off work needs to be done there. > > > > We can make a commandline switch as for highres. Is that sufficient ? > > I doubt it. > > I don't know how many machines will be affected by this, but I'd expect > it's quite a few - the Vaio has a less-than-one-year-old Intel CPU in it. > > I'd expect that if a distro were to enable NO_HZ, they'd have a large > number of unhappy users whose machines run like crap, some of whom would > find out that they need to add some funny dont-run-like-crap option and > some of whom would, after wasting considerable amounts of time, just give > up and use windows or RH5.2 or something. > > IOW, it would be vastly better to make it simply work out-of-the-box. Sorry, I misinterpreted the "runtime turn-it-off work". tglx - 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/