From owner-freebsd-questions@FreeBSD.ORG Thu Oct 31 15:40:26 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id B713349C for ; Thu, 31 Oct 2013 15:40:26 +0000 (UTC) (envelope-from dan@dan.emsphone.com) Received: from email2.allantgroup.com (email2.emsphone.com [199.67.51.116]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 787D6286B for ; Thu, 31 Oct 2013 15:40:26 +0000 (UTC) Received: from dan.emsphone.com (dan.emsphone.com [172.17.17.101]) by email2.allantgroup.com (8.14.5/8.14.5) with ESMTP id r9VFbvb9096212 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 31 Oct 2013 10:37:57 -0500 (CDT) (envelope-from dan@dan.emsphone.com) Received: from dan.emsphone.com (smmsp@localhost [127.0.0.1]) by dan.emsphone.com (8.14.7/8.14.6) with ESMTP id r9VFbvdZ037823 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 31 Oct 2013 10:37:57 -0500 (CDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.14.7/8.14.7/Submit) id r9VFbvPe037822; Thu, 31 Oct 2013 10:37:57 -0500 (CDT) (envelope-from dan) Date: Thu, 31 Oct 2013 10:37:57 -0500 From: Dan Nelson To: aurfalien Subject: Re: CPU Turbo mode Message-ID: <20131031153757.GG63947@dan.emsphone.com> References: <70EC0F10-FAD0-4EA6-8C1F-A95B1C786B7B@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <70EC0F10-FAD0-4EA6-8C1F-A95B1C786B7B@gmail.com> X-OS: FreeBSD 9.1-STABLE User-Agent: Mutt/1.5.22 (2013-10-16) X-Virus-Scanned: clamav-milter 0.98 at email2.allantgroup.com X-Virus-Status: Clean X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (email2.allantgroup.com [172.17.19.78]); Thu, 31 Oct 2013 10:37:57 -0500 (CDT) X-Spam-Status: No, score=-3.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, RP_MATCHES_RCVD autolearn=ham version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on email2.allantgroup.com X-Scanned-By: MIMEDefang 2.73 Cc: FreeBSD Mailing List X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Oct 2013 15:40:26 -0000 In the last episode (Oct 30), aurfalien said: > Hi all, > > I've powerd enabled and see this message often when running powerd -v; > > current freq 2201 MHz ( 0), wanted freq 4402 MHz > > Were is the 4402 value gotten from, is it a turbo value and if so, why is > it not boosting? Depending on your settings, powerd will try and raise the clock rate at different rates based on system load. 4402 is simply double the current clock rate, which probably means your system is busy and powerd is trying to quickly raise the clock rate. It doesn't bother capping the target value at the maximum, though, since it'll find out a bit later in the code when it actually tries to set a new clockrate and realizes that it's already at max. -- Dan Nelson dnelson@allantgroup.com