From owner-freebsd-current@FreeBSD.ORG Tue Dec 11 20:46:13 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6BE5E16A4A9 for ; Tue, 11 Dec 2007 20:46:13 +0000 (UTC) (envelope-from kenfreebsd@icarz.com) Received: from deanna.icarz.com (deanna.icarz.com [207.99.22.19]) by mx1.freebsd.org (Postfix) with ESMTP id 2AA2413C458 for ; Tue, 11 Dec 2007 20:46:12 +0000 (UTC) (envelope-from kenfreebsd@icarz.com) Received: from kenxp (netb-138.icarz.com [209.123.219.138]) by deanna.icarz.com (8.13.8/8.13.8) with SMTP id lBBKZWdW058958; Tue, 11 Dec 2007 15:35:32 -0500 (EST) (envelope-from kenfreebsd@icarz.com) Message-ID: <0be001c83c35$605d0020$8adb7bd1@icarz.com> From: "Ken Menzel" To: "Martin Cracauer" , "Poul-Henning Kamp" References: <28655.1197320193@critter.freebsd.dk> Date: Tue, 11 Dec 2007 15:35:32 -0500 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-Spam-Score: -98.6 () ALL_TRUSTED, AWL, BAYES_00, STOX_REPLY_TYPE, USER_IN_WHITELIST X-Scanned-By: MIMEDefang 2.63 on 207.99.22.19 Cc: Thomas Sparrevohn , freebsd-current@freebsd.org Subject: Re: CURRENT Kernel makes the system run very very hot X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Ken Menzel List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Dec 2007 20:46:13 -0000 ----- Original Message ----- From: "Poul-Henning Kamp" To: "Martin Cracauer" Cc: "Thomas Sparrevohn" ; Sent: Monday, December 10, 2007 3:56 PM Subject: Re: CURRENT Kernel makes the system run very very hot > In message <20071210201106.GB90158@cons.org>, Martin Cracauer > writes: > > I installed this on my laptop yesterday: > > FreeBSD critter.freebsd.dk 8.0-CURRENT FreeBSD 8.0-CURRENT > #0: Sun Dec 9 10:41:25 UTC 2007 > root@critter.freebsd.dk:/usr/obj/freebsd/src/sys/C5 i386 > > And it does indeed look like the idle threads do not HLT the cpu. > > Interestingly, powerd(8) does the right thing and throttles down > the cpu clock even though the idle threads churn away. > > top -HS shows: So did anyone file a PR? Or is someone already working on this? Seems fairly major to me as I am seeing the same thing here, on single CPU systems and a dual quad core system. If needed I will create the PR. Ken