From owner-freebsd-stable@FreeBSD.ORG Mon May 25 08:40:32 2009 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 BCEC9106568E for ; Mon, 25 May 2009 08:40:32 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from cmail.optima.ua (cmail.optima.ua [195.248.191.121]) by mx1.freebsd.org (Postfix) with ESMTP id C5BD48FC24 for ; Mon, 25 May 2009 08:40:31 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from orphanage.alkar.net (account mav@alkar.net [212.86.226.11] verified) by cmail.optima.ua (CommuniGate Pro SMTP 5.2.9) with ESMTPA id 243771930; Mon, 25 May 2009 11:40:28 +0300 Message-ID: <4A1A597B.5050600@FreeBSD.org> Date: Mon, 25 May 2009 11:40:27 +0300 From: Alexander Motin User-Agent: Thunderbird 2.0.0.14 (X11/20080612) MIME-Version: 1.0 To: Pavel Gorshkov References: <1242951786.00115396.1242940803@10.7.7.3> In-Reply-To: <1242951786.00115396.1242940803@10.7.7.3> X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: powerd (-adp/-hadp) strangeness on 7.2/amd64 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: Mon, 25 May 2009 08:40:33 -0000 Pavel Gorshkov wrote: > Every time I create/mount or unmount/detach a MFS filesystem, > powerd would *immediately* react with something like the > following: > > ### mdmfs -s 200m md /mfs > load 200%, current freq 600 MHz ( 9), wanted freq 1092 MHz > changing clock speed from 600 MHz to 1200 MHz > load 4%, current freq 1200 MHz ( 5), wanted freq 955 MHz > changing clock speed from 1200 MHz to 1000 MHz > ### umount /mfs && mdconfig -d -u 0 > load 200%, current freq 1000 MHz ( 6), wanted freq 1910 MHz > changing clock speed from 1000 MHz to 1982 MHz > > or even > > load 4%, current freq 1600 MHz ( 3), wanted freq 1519 MHz > ### mdmfs here > load 100%, current freq 1600 MHz ( 3), wanted freq 4532 MHz > > Is that expected behaviour? :-) CPU load above 100% possible for SMP systems, it just sum from all CPUs. Wanted freqs above maximum are also possible, when `hiadaptive` profile is used. Probably NFS creates some significant load while mounting. -- Alexander Motin