From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755840Ab1KVIT5 (ORCPT ); Tue, 22 Nov 2011 03:19:57 -0500 Received: from fmmailgate06.web.de ([217.72.192.247]:36315 "EHLO fmmailgate06.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754349Ab1KVIT4 convert rfc822-to-8bit (ORCPT ); Tue, 22 Nov 2011 03:19:56 -0500 Date: Tue, 22 Nov 2011 09:19:54 +0100 (CET) From: "Nicolas Kalkhof" To: "Mike Galbraith" Cc: "linux-kernel@vger.kernel.org" , maciej.rutecki@gmail.com Message-ID: <1525712996.2585575.1321949994931.JavaMail.fmail@mwmweb003> Subject: Re: [REGRESSION] sudden cpu hogging in kernel 3.2 rc-series MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Priority: 3 Importance: normal Sensitivity: Normal X-Provags-ID: V01U2FsdGVkX1+U7TfQcVPFXfXjSKo+nsbgGsmyI6pA1TgaI+N7VnggF+tZI/4HlFrG 4PQiShWIe7cIFZONJXUP/w== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Mike, thanks for your reply! I didn't set any polling explicitly. My boot params are: intel_iommu=off pcie_aspm=force i915.powersave=1 i915.i915_enable_rc6=1 and in the cpufrequtils startup daemon the only parameter set is: # Options when starting cpufreq (given to the `cpufreq-set` program) START_OPTS="--governor ondemand" egrep "IDLE|GOV" .config yields: CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y CONFIG_ARCH_HAS_DEFAULT_IDLE=y # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_IDLE=y CONFIG_CPU_IDLE_GOV_LADDER=y CONFIG_INTEL_IDLE=y # CONFIG_I7300_IDLE is not set Any advice? Thanks and Regards Nic -----Ursprüngliche Nachricht----- Von: "Mike Galbraith" Gesendet: Nov 22, 2011 6:03:03 AM An: "Nicolas Kalkhof" Betreff: Re: [REGRESSION] sudden cpu hogging in kernel 3.2 rc-series >On Mon, 2011-11-21 at 22:40 +0100, Nicolas Kalkhof wrote: >> This happens on my machine after some minutes, too when running X and >> the trinity desktop. the cpu continuously uses up additional ~10 watts >> comparing to older 3.1 kernels. The issue remains high even after I >> kill X. A closer investigation shows that poll_idle uses up the cpu >> (see dump below). Is it normal for poll_idle to use up all ressources? > >poll_idle should not consume cycles on i7 unless you booted idle=poll, >or miss-configured the kernel. > >egrep 'IDLE|GOV' .config > >CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y >CONFIG_ARCH_HAS_DEFAULT_IDLE=y >CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y ># CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set ># CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set ># CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set >CONFIG_CPU_FREQ_GOV_PERFORMANCE=y >CONFIG_CPU_FREQ_GOV_POWERSAVE=m >CONFIG_CPU_FREQ_GOV_USERSPACE=m >CONFIG_CPU_FREQ_GOV_ONDEMAND=m >CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m >CONFIG_CPU_IDLE=y >CONFIG_CPU_IDLE_GOV_LADDER=y >CONFIG_CPU_IDLE_GOV_MENU=y >CONFIG_INTEL_IDLE=y >CONFIG_I7300_IDLE_IOAT_CHANNEL=y >CONFIG_I7300_IDLE=m >CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y >CONFIG_DEVFREQ_GOV_PERFORMANCE=y >CONFIG_DEVFREQ_GOV_POWERSAVE=y >CONFIG_DEVFREQ_GOV_USERSPACE=y > > ___________________________________________________________ SMS schreiben mit WEB.DE FreeMail - einfach, schnell und kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192