Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760657Ab3EDH6H (ORCPT ); Sat, 4 May 2013 03:58:07 -0400 Received: from mout.gmx.net ([212.227.15.19]:51935 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760109Ab3EDH6F (ORCPT ); Sat, 4 May 2013 03:58:05 -0400 X-Authenticated: #5108953 X-Provags-ID: V01U2FsdGVkX19o+UkGJqlozeawgataNQlv4xDgwipCnmLa7gFgnL Kjfml2KC+fhXrD Message-ID: <5184BF82.4070700@gmx.de> Date: Sat, 04 May 2013 09:57:54 +0200 From: =?UTF-8?B?VG9yYWxmIEbDtnJzdGVy?= User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130405 Thunderbird/17.0.5 MIME-Version: 1.0 To: Dirk Brandewie CC: "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, Linux Kernel , Linux PM list , boinc_dev@ssl.berkeley.edu Subject: Re: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lost ACPI functionality References: <5183EC09.9080208@gmx.de> <3715884.H8PIhhjRXL@vostro.rjw.lan> <518427D4.3050104@gmail.com> <51842B79.8060302@gmx.de> <51842F6F.1050005@intel.com> In-Reply-To: <51842F6F.1050005@intel.com> X-Enigmail-Version: 1.6a1pre Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1839 Lines: 56 On 05/03/2013 11:43 PM, Dirk Brandewie wrote: > On 05/03/2013 02:26 PM, Toralf Förster 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 client >>> 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. Hhm. The kernel menuconfig says : This driver provides a P state for Intel core processors The driver implements an internal governor and will become the scaling driver and governor for Sandy bridge processors. What shall a company like IBM with a lot of notebook installation running BOINC in the back ground process (World Community Grid) do - what's the consequence for those installations if they will have that a processor ? In the past (few years ago and related to the ondemand governor IIRC) there were already a longer discussion about the "nice -n 19" topic and the result was to support it. /me Cc:'ing boinc devs, the topic might be interesting for them too. >> 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 > > -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- 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/