From owner-freebsd-stable@FreeBSD.ORG Tue Mar 23 06:27:23 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0C7EF106566B for ; Tue, 23 Mar 2010 06:27:23 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-fx0-f224.google.com (mail-fx0-f224.google.com [209.85.220.224]) by mx1.freebsd.org (Postfix) with ESMTP id 8BCC18FC1D for ; Tue, 23 Mar 2010 06:27:22 +0000 (UTC) Received: by fxm24 with SMTP id 24so642147fxm.3 for ; Mon, 22 Mar 2010 23:27:21 -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 :content-type:content-transfer-encoding; bh=59KnBjEAWNiOvD4x4tcRaAG1mSz0v4602GXYnL4qPvo=; b=oPQniZiRlaLTeJaizjOV584yuXdDjChyr9sZ4iMUg18huWKWqB7JrJ39SdFCnMqI3O QtW9yurRKlcsK5rQQdYRz3PenHgWPnS5G1CgZQyn7mMkcYOER+v3/XdQkZC3Nk84YJyX Rxt2BC3n/eYxRstkJrxHYtzBe1hNZL61S/4VQ= 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:content-type:content-transfer-encoding; b=kJb9hU4ApkL0ehhHRyIcfclkeocki0Gqij20gYT/CEh3UAzrxJgd217Xwt8PketqLo UBxOFVWkxZ+0qXYvNq9n5ZO7SyKquEKEGKaOKYpEcw/rR7Y0oP5EIW+e6PDkWPR5+YWv vUyjQMOILgCO9J6LPD0KlfkloRG/BKSfDFG2s= Received: by 10.103.76.21 with SMTP id d21mr2152001mul.17.1269325641073; Mon, 22 Mar 2010 23:27:21 -0700 (PDT) Received: from mavbook.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id n7sm3552437mue.15.2010.03.22.23.27.20 (version=SSLv3 cipher=RC4-MD5); Mon, 22 Mar 2010 23:27:20 -0700 (PDT) Sender: Alexander Motin Message-ID: <4BA85F46.9010306@FreeBSD.org> Date: Tue, 23 Mar 2010 08:27:18 +0200 From: Alexander Motin User-Agent: Thunderbird 2.0.0.23 (X11/20091212) MIME-Version: 1.0 To: John Long References: <1269310984.00232724.1269300005@10.7.7.3> In-Reply-To: <1269310984.00232724.1269300005@10.7.7.3> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: FreeBSD-STABLE Mailing List Subject: Re: Powerd and est / eist functionality X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Mar 2010 06:27:23 -0000 John Long wrote: > Hello, I am putting together a couple update servers. Went with c2d > E7500 on gigabyte G41M-ES2L boards. fbsd 8.0 release generic (so far) > amd64, 1g mem, 1tb wd cavier blk, fresh system. > My Kill-a-watt shows 41 watts idle and when I enable powerd then it > climbs to 43 watts idle. > It shows that the freq is controlled well, goes down to 365 mhz but > the tdp is not decreased, rather it increases. > If I disable eist, c1 and c3 helpers in bios, as per suggestion in > mail archive, then it adds 1 watt to both figures. I was hoping to get > this total tdp down to a very low amount, and it is but it should > theoretically go lower with powerd, right? > The bios reports 1.268V and 26C temp. I was hoping that the voltage > would go down to .85 or so when powerd lowered the freq to 365 etc. > Healthd does not seem to know what monitoring chip it is and I have no > idea unless I install xp (ugh) and run something from cpuid.com on it. > What is a good/better/best monitoring program, mbmon and bsdhwmon are > untried for they are not current I see. Or what do I do from here to > fix this problem? > thx, > John > dmesg shows > cpu0: on acpi0 > est0: on cpu0 > est: CPU supports Enhanced Speedstep, but is not recognized. > est: cpu_vendor GenuineIntel, msr 6160b2506000b25 > device_attach: est0 attach returned 6 > p4tcc0: on cpu0 > cpu1: on acpi0 > est1: on cpu1 > est: CPU supports Enhanced Speedstep, but is not recognized. > est: cpu_vendor GenuineIntel, msr 6160b2506000b25 > device_attach: est1 attach returned 6 > p4tcc1: on cpu1 > powerd -v > powerd: unable to determine AC line status > load 0%, current freq 2926 MHz ( 0), wanted freq 2834 MHz > load 0%, current freq 2926 MHz ( 0), wanted freq 2745 MHz > ....... > load 3%, current freq 365 MHz ( 7), wanted freq 365 MHz > load 0%, current freq 365 MHz ( 7), wanted freq 365 MHz Your ACPI BIOS seems not reporting tables required to control EIST. So powerd probably uses only thermal throttling, which is not really effective for power saving on modern CPUs. You should check your BIOS options or may be update BIOS. If you have no luck with EIST - try to use C-states if BIOS reports at least them. It also can be quite effective. -- Alexander Motin