From owner-cvs-all Fri Jan 24 21: 6:48 2003 Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D212937B401; Fri, 24 Jan 2003 21:06:46 -0800 (PST) Received: from canning.wemm.org (canning.wemm.org [192.203.228.65]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8106343F43; Fri, 24 Jan 2003 21:06:46 -0800 (PST) (envelope-from peter@wemm.org) Received: from wemm.org (localhost [127.0.0.1]) by canning.wemm.org (Postfix) with ESMTP id 3D73F2A89E; Fri, 24 Jan 2003 21:06:41 -0800 (PST) (envelope-from peter@wemm.org) X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: Marcel Moolenaar Cc: John Baldwin , Nate Lawson , cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org, Attila Nagy Subject: Re: cvs commit: src/sys/i386/i386 identcpu.c initcpu.c locore.s In-Reply-To: <20030125021907.51B482A89E@canning.wemm.org> Date: Fri, 24 Jan 2003 21:06:41 -0800 From: Peter Wemm Message-Id: <20030125050641.3D73F2A89E@canning.wemm.org> Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Peter Wemm wrote: > The last time I tried this on a non-HTT system, enabling the true halt > caused a slight slowdown. But the machine used a lot less power and > the room was cooler. :-] Speaking of cooler: Before: repoman# sysctl -n hw.cpq.temp ID TYPE LOCATION STATUS CURRENT THRESHOLD 1 ADM1022 Processor Zone Nominal 96F/ 36C 156F/ 69C 2 ADM1022 I/O Zone Nominal 98F/ 37C 167F/ 75C 3 ADM1022 CPU (1) Nominal 114F/ 46C 168F/ 76C 4 ADM1022 CPU (2) Nominal 123F/ 51C 168F/ 76C repoman# sysctl machdep.cpu_idle_hlt=1 machdep.cpu_idle_hlt: 0 -> 1 About 3 minutes later: repoman# sysctl -n hw.cpq.temp ID TYPE LOCATION STATUS CURRENT THRESHOLD 1 ADM1022 Processor Zone Nominal 84F/ 29C 156F/ 69C 2 ADM1022 I/O Zone Nominal 95F/ 35C 167F/ 75C 3 ADM1022 CPU (1) Nominal 80F/ 27C 168F/ 76C 4 ADM1022 CPU (2) Nominal 89F/ 32C 168F/ 76C These are P3's though. As you can see, that is quite a difference especially in a 1U box. (One is an 800MHz, the other is 933MHz) Cheers, -Peter -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message