From owner-freebsd-questions@FreeBSD.ORG Mon Jun 23 19:37:53 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 61C961065675 for ; Mon, 23 Jun 2008 19:37:53 +0000 (UTC) (envelope-from derek@computinginnovations.com) Received: from betty.computinginnovations.com (mail.computinginnovations.com [64.81.227.250]) by mx1.freebsd.org (Postfix) with ESMTP id 090918FC18 for ; Mon, 23 Jun 2008 19:37:52 +0000 (UTC) (envelope-from derek@computinginnovations.com) Received: from p28.computinginnovations.com (dhcp-10-20-30-100.computinginnovations.com [10.20.30.100]) (authenticated bits=0) by betty.computinginnovations.com (8.14.2/8.14.2) with ESMTP id m5NJbe5v094011; Mon, 23 Jun 2008 14:37:41 -0500 (CDT) (envelope-from derek@computinginnovations.com) Message-Id: <6.0.0.22.2.20080623143415.0255c5b8@mail.computinginnovations.com> X-Sender: derek@mail.computinginnovations.com X-Mailer: QUALCOMM Windows Eudora Version 6.0.0.22 Date: Mon, 23 Jun 2008 14:37:31 -0500 To: josh.carroll@gmail.com From: Derek Ragona In-Reply-To: <8cb6106e0806231224vd72b4e6v8470577867c63031@mail.gmail.com > References: <18527.62508.451095.415706@almost.alerce.com> <6.0.0.22.2.20080623141819.02568dd0@mail.computinginnovations.com> <8cb6106e0806231224vd72b4e6v8470577867c63031@mail.gmail.com> Mime-Version: 1.0 X-Virus-Scanned: ClamAV 0.93/6806/Wed Apr 16 15:50:16 2008 on betty.computinginnovations.com X-Virus-Status: Clean X-ComputingInnovations-MailScanner-Information: Please contact the ISP for more information X-MailScanner-ID: m5NJbe5v094011 X-ComputingInnovations-MailScanner: Found to be clean X-ComputingInnovations-MailScanner-From: derek@computinginnovations.com X-Spam-Status: No Content-Type: text/plain; charset="us-ascii"; format=flowed X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: hartzell@alerce.com, freebsd-questions@freebsd.org Subject: Re: {Spam?} Re: CPU temp's on core 2 duo, should they be significantly different? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Jun 2008 19:37:53 -0000 At 02:24 PM 6/23/2008, Josh Carroll wrote: > > Not sure if the core duos work the same as older 2 CPU and 4 CPU > > motherboards, but there are some BIOS functions that always use the first > > CPU. So you never get true SMP because the hardware uses the first CPU > more > > to service interrupts. > >True, but interrupt handling and minimal background processing should >not cause a core to be 15 C hotter. I guess the original poster can >mention the load on both cores (or post a top snapshot) so we can see >if there is some load on the system. It can cause it to be hotter because the first CPU is servicing all motherboard hardware like the ethernet, video, etc. It is usually the ethernet that causes the most cpu activity. -Derek -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.