From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dirk Brandewie Subject: Re: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lost ACPI functionality Date: Fri, 03 May 2013 14:43:11 -0700 Message-ID: <51842F6F.1050005@intel.com> References: <5183EC09.9080208@gmx.de> <3715884.H8PIhhjRXL@vostro.rjw.lan> <518427D4.3050104@gmail.com> <51842B79.8060302@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-pa0-f47.google.com ([209.85.220.47]:56843 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760475Ab3ECVnO (ORCPT ); Fri, 3 May 2013 17:43:14 -0400 In-Reply-To: <51842B79.8060302@gmx.de> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: =?UTF-8?B?VG9yYWxmIEbDtnJzdGVy?= Cc: Dirk Brandewie , "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, Linux Kernel , Linux PM list On 05/03/2013 02:26 PM, Toralf F=C3=B6rster wrote: > On 05/03/2013 11:10 PM, Dirk Brandewie wrote: >> >> ignore_nice_load is a feature of the ondemand governor. >> The intel_pstate driver is seeing the load presented by the BOINC cl= ient >> and is adjusting the pstate accordingly. > > Is the intel_pstate driver a choice for a notebook and friends where = a > grid software is running as a low-prio back ground job ? > Probably not. > Because the CPU will be running mostly at high(er) frequency - which > always results in a high temperature and short battery time. > It would be better IMHO if the client software limited the resources it uses when the system is not on wall power but that is a seperate discussion :-) --Dirk