Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765339AbXFRUYr (ORCPT ); Mon, 18 Jun 2007 16:24:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1763180AbXFRUYj (ORCPT ); Mon, 18 Jun 2007 16:24:39 -0400 Received: from mga02.intel.com ([134.134.136.20]:37039 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762295AbXFRUYi convert rfc822-to-8bit (ORCPT ); Mon, 18 Jun 2007 16:24:38 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.16,436,1175497200"; d="scan'208";a="255964703" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: [patch-mm 00/25] High resolution timer updates and x86_64 support - V2 Date: Mon, 18 Jun 2007 13:24:33 -0700 Message-ID: <653FFBB4508B9042B5D43DC9E18836F501091308@scsmsx415.amr.corp.intel.com> In-Reply-To: <6972.1182197191@turing-police.cc.vt.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [patch-mm 00/25] High resolution timer updates and x86_64 support - V2 Thread-Index: Acex5DOFuleKuffiQZOpac5HLAac+gAAe/Fg From: "Pallipadi, Venkatesh" To: , "Thomas Gleixner" Cc: "LKML" , "Andrew Morton" , "Ingo Molnar" , "Andi Kleen" , "Chris Wright" , "Arjan van de Ven" X-OriginalArrivalTime: 18 Jun 2007 20:24:36.0162 (UTC) FILETIME=[B04A9220:01C7B1E6] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2161 Lines: 68 >-----Original Message----- >From: Valdis.Kletnieks@vt.edu [mailto:Valdis.Kletnieks@vt.edu] >Sent: Monday, June 18, 2007 1:07 PM >To: Thomas Gleixner >Cc: LKML; Andrew Morton; Ingo Molnar; Andi Kleen; Chris >Wright; Arjan van de Ven; Pallipadi, Venkatesh >Subject: Re: [patch-mm 00/25] High resolution timer updates >and x86_64 support - V2 > >On Sat, 16 Jun 2007 10:36:00 -0000, Thomas Gleixner said: >> The following patch series contains: >> >> - dyntick bugfixes for -mm (caused by the cpuidle changes in ACPI) >> >> - updates and improvements to high resolution timer / dynticks >> >> - high resolution timer / dynticks support for x86_64 > >Am running with the 22-rc4-mm2-hrt4 patch on my Latitude D820. > Mostly seems >to work, but for some reason the Intel 'powertop' util thinks >it's 100% busy: > > PowerTOP version 1.7 (C) 2007 Intel Corporation > >Cn Avg residency (5s) P-states (frequencies) >C0 (cpu running) (100.0%) >C1 0.0ms ( 0.0%) 2.00 Ghz 0.0% >C2 0.0ms ( 0.0%) 1.67 Ghz 0.0% >C3 0.0ms ( 0.0%) 1333 Mhz 0.0% > 1000 Mhz 100.0% > >In reality: > >[/sys/devices/system/cpu/cpu0/cpuidle] for i in */*; do echo >-n "$i: "; cat $i; done >state0/latency: 1 >state0/power: 1000 >state0/time: 0 >state0/usage: 3 >state1/latency: 1 >state1/power: 500 >state1/time: 1756017623 >state1/usage: 1837402 >state2/latency: 57 >state2/power: 100 >state2/time: -159524787 >state2/usage: 15007443 > The problem is powertop only understands /proc/acpi/processor/CPU*/power for and not /sys..cpuidle for the moment. I had a patch in recent cpuidle fixes series that makes /proc interface active again with cpuidle which should correct this. Those patches are not in rc4-mm2-hrt4, but are there in latest rc4-hrt and rc5-hrt series. Thanks, Venki - 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/