Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754733AbXJ2HC5 (ORCPT ); Mon, 29 Oct 2007 03:02:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751863AbXJ2HCu (ORCPT ); Mon, 29 Oct 2007 03:02:50 -0400 Received: from smtp2.linux-foundation.org ([207.189.120.14]:33907 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751816AbXJ2HCt convert rfc822-to-8bit (ORCPT ); Mon, 29 Oct 2007 03:02:49 -0400 Date: Mon, 29 Oct 2007 00:02:43 -0700 From: Andrew Morton To: Toralf =?ISO-8859-1?B?RvZyc3Rlcg==?= Cc: linux-kernel@vger.kernel.org, cpufreq@www.linux.org.uk Subject: Re: cpu governor ondemand issue Message-Id: <20071029000243.9101d363.akpm@linux-foundation.org> In-Reply-To: <200710211316.14955.toralf.foerster@gmx.de> References: <200710211316.14955.toralf.foerster@gmx.de> X-Mailer: Sylpheed 2.4.1 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1578 Lines: 48 On Sun, 21 Oct 2007 13:16:14 +0200 Toralf F?rster wrote: > I use the following one liner for regression tests of the cpufreq governor and > friends: > > tfoerste@n22 ~ $ time factor 819734028463158891 > > which usually needs 5.5 secs to complete at 1.7 GHz of my pentium M processor. > > With the current git sources (commit cfa76f0 at Sat Oct 20 20:19:15 2007 -0700) > instead this command needs 3 times longer if I run the "distributed.net client" > as a background process with nice level 19 b/c the cpu frequency still stays > at 600 MHz. > After stopping dnetc the cpu frequency governor ondemand works as expected again. > > Tested at my ThinkPad T41 with stable Gentoo: > > tfoerste@n22 ~ $ grep -e ^CONFIG_ACPI -e ^CONFIG_CPU_FREQ_GOV_ ~/devel/linux-2.6/.config > CONFIG_ACPI=y > CONFIG_ACPI_SLEEP=y > CONFIG_ACPI_PROCFS=y > CONFIG_ACPI_PROC_EVENT=y > CONFIG_ACPI_AC=m > CONFIG_ACPI_BATTERY=m > CONFIG_ACPI_BUTTON=m > CONFIG_ACPI_VIDEO=m > CONFIG_ACPI_FAN=m > CONFIG_ACPI_PROCESSOR=m > CONFIG_ACPI_THERMAL=m > CONFIG_ACPI_BLACKLIST_YEAR=0 > CONFIG_ACPI_EC=y > CONFIG_ACPI_POWER=y > CONFIG_ACPI_SYSTEM=y > CONFIG_CPU_FREQ_GOV_PERFORMANCE=y > CONFIG_CPU_FREQ_GOV_POWERSAVE=m > CONFIG_CPU_FREQ_GOV_ONDEMAND=y > And 2.6.23 was OK? Is this problem still present in Linus's current tree? Thanks. - 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/