From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753358AbXJULQ1 (ORCPT ); Sun, 21 Oct 2007 07:16:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751513AbXJULQT (ORCPT ); Sun, 21 Oct 2007 07:16:19 -0400 Received: from mail.gmx.net ([213.165.64.20]:50329 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751511AbXJULQS convert rfc822-to-8bit (ORCPT ); Sun, 21 Oct 2007 07:16:18 -0400 X-Authenticated: #5108953 X-Provags-ID: V01U2FsdGVkX18smbdr36AsyZMO5raSMpXG9Qftjp3LOGmznYbdwG rl3gljOgRxwbx5 From: Toralf =?iso-8859-15?q?F=F6rster?= To: linux-kernel@vger.kernel.org Subject: cpu governor ondemand issue Date: Sun, 21 Oct 2007 13:16:14 +0200 User-Agent: KMail/1.9.7 MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 8BIT Message-Id: <200710211316.14955.toralf.foerster@gmx.de> X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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 -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3