From owner-freebsd-hackers@FreeBSD.ORG  Wed Aug  8 16:49:36 2007
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 361BB16A418
	for <hackers@freebsd.org>; Wed,  8 Aug 2007 16:49:36 +0000 (UTC)
	(envelope-from yurtesen@ispro.net)
Received: from mail.ispro.net (mail.ispro.net [87.251.0.19])
	by mx1.freebsd.org (Postfix) with SMTP id 5128F13C468
	for <hackers@freebsd.org>; Wed,  8 Aug 2007 16:49:34 +0000 (UTC)
	(envelope-from yurtesen@ispro.net)
Received: (qmail 84566 invoked by uid 399); 8 Aug 2007 19:22:53 +0300
Received: from dsl-tkubrasgw1-fe26fa00-203.dhcp.inet.fi (HELO ?84.250.38.203?)
	(yurtesen@ispro.net@84.250.38.203)
	by mail.ispro.net with ESMTP; 8 Aug 2007 19:22:53 +0300
X-Originating-IP: 84.250.38.203
Message-ID: <46B9EDBF.80506@ispro.net>
Date: Wed, 08 Aug 2007 19:22:23 +0300
From: Evren Yurtesen <yurtesen@ispro.net>
User-Agent: Thunderbird 1.5.0.12 (Windows/20070509)
MIME-Version: 1.0
To: hackers@freebsd.org
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: 
Subject: powerd feature proposal...(and a small problem)
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Aug 2007 16:49:36 -0000

Hi,

The problem is with an 8 processor system. If a process is not threaded and 
starts using 100% cpu time of a single processor, the system still shows over 
80% idle. Whereas this single process works really slow if the system is already 
at the slowest speed. Is there a simple way to fix this problem? It is not so 
big problem but sometimes it is quite annoying :)

Also I am currently using acpi_ppc 
(http://www.spa.is.uec.ac.jp/~nfukuda/software/) for adaptive CPU speeds on some 
machines. It gives performance statistics like:

hw.acpi.cpu.px_supported: 2200 1800 800
hw.acpi.cpu.px_usage: 3.33% 3.33% 93.33%

Is it possible for powerd to create similar sysctl entries?

Thanks,
Evren