Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267561AbUIPGNP (ORCPT ); Thu, 16 Sep 2004 02:13:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267563AbUIPGNP (ORCPT ); Thu, 16 Sep 2004 02:13:15 -0400 Received: from mx1.elte.hu ([157.181.1.137]:28874 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S267561AbUIPGNN (ORCPT ); Thu, 16 Sep 2004 02:13:13 -0400 Date: Thu, 16 Sep 2004 08:14:38 +0200 From: Ingo Molnar To: Nick Piggin Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [patch] sched: fix scheduling latencies for !PREEMPT kernels Message-ID: <20040916061438.GA10314@elte.hu> References: <20040914114228.GD2804@elte.hu> <4146EA3E.4010804@yahoo.com.au> <20040914132225.GA9310@elte.hu> <4146F33C.9030504@yahoo.com.au> <20040914145457.GA13113@elte.hu> <414776CE.5030302@yahoo.com.au> <20040915061922.GA11683@elte.hu> <4147FC14.2010205@yahoo.com.au> <20040915084355.GA29752@elte.hu> <4148E64A.9000206@yahoo.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4148E64A.9000206@yahoo.com.au> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 710 Lines: 18 * Nick Piggin wrote: > No, I mean putting cond_resched in might_sleep is ad hoc. But that > doesn't mean it doesn't work - it obviously does ;) ah, ok, i understand your point now. No, i'm not submitting the CONFIG_PREEMPT_VOLUNTARY .config switch (and the kernel.h 2-liner) at this point. All the latency breakers so far will mainly benefit CONFIG_PREEMPT - which is also the primary preempt model used by bleeding-edge testers. Ingo - 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/