From owner-freebsd-current@FreeBSD.ORG Sun Sep 12 10:58:03 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 176DB106564A; Sun, 12 Sep 2010 10:58:03 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-bw0-f54.google.com (mail-bw0-f54.google.com [209.85.214.54]) by mx1.freebsd.org (Postfix) with ESMTP id 053068FC19; Sun, 12 Sep 2010 10:57:44 +0000 (UTC) Received: by bwz20 with SMTP id 20so401929bwz.13 for ; Sun, 12 Sep 2010 03:57:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:sender:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :x-enigmail-version:content-type:content-transfer-encoding; bh=+I9oiDZk20RrofyCSq/XSHVwJWVSrSCa99ouOXykk/g=; b=bsV2M0aeLHvzu2q2xFd5zZTm4o4iqXK7QIjACca9M2qWxqQiuq8pqTJVkfManVnfxY Xum5T3q2oXVkOhi8BhVUVsqCHarYgd/jNPzrq7tmci2WBwl0/uahIxBrZS+UTD2/X+eG jMN/kASOYcO9Dg24hIZWM7CGOCQEASRfjUIr8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=a3zEpY046cQQYqqkOCRXrjxii2pjkiI6cH2sSzhgUrKBNyM26fK5dN0pT9TtQydKN1 Z2vUEFImuZLBXTPG8lgB2ON4Ilfx+HWaniXtqtkPBWxepZpNNakmQoHuYUu+7Z10iyap E537/MiOsOXk+Adv8Xb8v9ULSKDUR2WoCrYCk= Received: by 10.204.78.8 with SMTP id i8mr245218bkk.176.1284289063785; Sun, 12 Sep 2010 03:57:43 -0700 (PDT) Received: from mavbook.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id 11sm3613115bkj.11.2010.09.12.03.57.41 (version=SSLv3 cipher=RC4-MD5); Sun, 12 Sep 2010 03:57:42 -0700 (PDT) Sender: Alexander Motin Message-ID: <4C8CB211.6020308@FreeBSD.org> Date: Sun, 12 Sep 2010 13:57:21 +0300 From: Alexander Motin User-Agent: Thunderbird 2.0.0.24 (X11/20100402) MIME-Version: 1.0 To: Norikatsu Shigemura References: <4C8BCAC5.5050008@root.org> <4C8C8B64.8020907@FreeBSD.org> <20100912182625.c49d3f1d.nork@FreeBSD.org> <4C8C9F06.4090505@icyb.net.ua> <20100912190537.621e357e.nork@FreeBSD.org> <20100912190952.8c0d5726.nork@FreeBSD.org> <20100912192518.e791c191.nork@FreeBSD.org> <4C8CAC01.70004@icyb.net.ua> <4C8CAD7D.50602@FreeBSD.org> In-Reply-To: <4C8CAD7D.50602@FreeBSD.org> X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: FreeBSD-Current , Andriy Gapon Subject: Re: CPU C-state storange on Panasonic TOUGH BOOK CF-R9 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 12 Sep 2010 10:58:03 -0000 Alexander Motin wrote: > Andriy Gapon wrote: >> acpi_lid0: Lid closed >> em0: Link is up 1000 Mbps Full Duplex >> PROCESSOR-0722 [402244] cpu_cx_cst : acpi_cpu0: Got C2 - 245 latency >> PROCESSOR-0722 [403097] cpu_cx_cst : acpi_cpu1: Got C2 - 245 latency >> PROCESSOR-0722 [403855] cpu_cx_cst : acpi_cpu2: Got C2 - 245 latency >> PROCESSOR-0722 [405022] cpu_cx_cst : acpi_cpu3: Got C2 - 245 latency >> >> Maybe because of this? >> It seems like you do something and ACPI disables C3, leaving only C2/ > > One strange thing. During boot it can be seen: > acpi_cpu0: Got C2 - 205 latency > acpi_cpu0: Got C3 - 245 latency > , but after boot in sysctl we can see: > dev.cpu.0.cx_supported: C1/3 C2/245 > > It respecting latency it looks like not C3 got lost, but C2. AFAIR, > sysctl numbers C-states completely abstract, just as array indexes. So > thing reported as C2 could instead be C3, while C2 is absent for some > reason. BTW, have you tried to unplug power? My laptop hides C3 state when power cord is plugged-in. -- Alexander Motin