From owner-cvs-src@FreeBSD.ORG Mon Nov 7 17:10:13 2005 Return-Path: X-Original-To: cvs-src@FreeBSD.org Delivered-To: cvs-src@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 76E8D16A462; Mon, 7 Nov 2005 17:10:13 +0000 (GMT) (envelope-from nate@root.org) Received: from www.cryptography.com (li-22.members.linode.com [64.5.53.22]) by mx1.FreeBSD.org (Postfix) with ESMTP id C41FC43D88; Mon, 7 Nov 2005 17:10:01 +0000 (GMT) (envelope-from nate@root.org) Received: from [10.0.5.50] (ppp-71-139-0-107.dsl.snfc21.pacbell.net [71.139.0.107]) by www.cryptography.com (8.12.8/8.12.8) with ESMTP id jA7H9txq028173 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 7 Nov 2005 09:09:56 -0800 Message-ID: <436F8A63.5020608@root.org> Date: Mon, 07 Nov 2005 09:09:55 -0800 From: Nate Lawson User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= References: <200511052355.jA5NtuPg026403@repoman.freebsd.org> <20051105191616.M870@odysseus.silby.com> <861x1u55qg.fsf@xps.des.no> <436E5797.7090605@root.org> <868xw0d3rs.fsf@xps.des.no> In-Reply-To: <868xw0d3rs.fsf@xps.des.no> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Cc: cvs-src@FreeBSD.org, Mike Silbersack , src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/conf files src/sys/modules/acpi/acpi Makefile src/sys/dev/acpica acpi_battery.c acpi_smbat.c acpi_smbus.h acpiio.h X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Nov 2005 17:10:13 -0000 Dag-Erling Smørgrav wrote: > Nate Lawson writes: > >>Dag-Erling Smørgrav wrote: >> >>>Try running powerd with a 5000 ms polling interval. With the default >>>of 500 ms, it never seems to stabilize, but keeps oscillating wildly >>>in the 75-300 MHz range on my Dell Latitude D600. >> >>That is bad for performance. It can then take up to 10-15 seconds to >>promote back to 100% CPU when your system becomes busy. > > > It's not as bad for performance as me tossing the laptop out the > window in frustration because powerd keeps changing the CPU frequency > and the system freezes for just a moment every time it does. Some drivers require interrupts disabled, but it should be for a very brief time. acpi_perf usually generates an SMI so that may be slow for your BIOS. Are you getting messages on console about the change timing out? -- Nate