Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751154AbXA2Qha (ORCPT ); Mon, 29 Jan 2007 11:37:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751457AbXA2Qha (ORCPT ); Mon, 29 Jan 2007 11:37:30 -0500 Received: from www.osadl.org ([213.239.205.134]:48410 "EHLO mail.tglx.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751154AbXA2Qh3 (ORCPT ); Mon, 29 Jan 2007 11:37:29 -0500 Subject: Re: 2.6.20-rc6-mm2 From: Thomas Gleixner Reply-To: tglx@linutronix.de To: Karsten Wiese Cc: Andrew Morton , Ingo Molnar , linux-kernel@vger.kernel.org In-Reply-To: <200701291722.41705.fzu@wemgehoertderstaat.de> References: <20070129001207.71ea3470.akpm@osdl.org> <200701291722.41705.fzu@wemgehoertderstaat.de> Content-Type: text/plain Date: Mon, 29 Jan 2007 17:38:08 +0100 Message-Id: <1170088688.29240.5.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: 922 Lines: 25 On Mon, 2007-01-29 at 17:22 +0100, Karsten Wiese wrote: > Hi, > > with dynticks and highres_timers enabled, cpufreq_ondemand makes mess here on > an AMD64 UP. > cpufreq_ondemand assumes that jiffies advance at exactly the same pace as the > sum of all kstat_cpu(cpu).cpustat.* members. > This isn't the case here as dmesg output from patch below shows. > > Is cpufreq_ondemand correct assuming > "jiffies advance at exactly the same pace as the > sum of all kstat_cpu(cpu).cpustat.* members"? > Or is "dynticks and highres_timers"'s behaviour of incrementing the > sum of kstat_cpu(cpu).cpustat.* members faster than jiffies? No it should not. /me investigates. 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/