From owner-freebsd-stable@FreeBSD.ORG Wed Sep 9 00:48:15 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2B8E51065672; Wed, 9 Sep 2009 00:48:15 +0000 (UTC) (envelope-from doconnor@gsoft.com.au) Received: from cain.gsoft.com.au (cain.gsoft.com.au [203.31.81.10]) by mx1.freebsd.org (Postfix) with ESMTP id 92BF18FC13; Wed, 9 Sep 2009 00:48:14 +0000 (UTC) Received: from inchoate.gsoft.com.au (inchoate.gsoft.com.au [203.31.81.30]) (authenticated bits=0) by cain.gsoft.com.au (8.13.8/8.13.8) with ESMTP id n890mC19002556 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Wed, 9 Sep 2009 10:18:12 +0930 (CST) (envelope-from doconnor@gsoft.com.au) From: "Daniel O'Connor" To: Alexander Motin Date: Wed, 9 Sep 2009 10:18:03 +0930 User-Agent: KMail/1.9.10 References: <1252426982.00160755.1252414203@10.7.7.3> <4AA6860F.1020203@FreeBSD.org> In-Reply-To: <4AA6860F.1020203@FreeBSD.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2143077.YycXeOppJp"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200909091018.10509.doconnor@gsoft.com.au> X-Spam-Score: -3.608 () ALL_TRUSTED,AWL,BAYES_00 X-Scanned-By: MIMEDefang 2.63 on 203.31.81.10 Cc: FreeBSD Stable Subject: Re: Detecting CPU throttling on over temperature X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Sep 2009 00:48:15 -0000 --nextPart2143077.YycXeOppJp Content-Type: text/plain; charset="koi8-r" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Wed, 9 Sep 2009, Alexander Motin wrote: > Daniel O'Connor wrote: > > I recently discovered a system where the floppy drive cable was > > intermittently fouling the CPU fan - I believe this caused the CPU > > to overheat and then get throttled by the BIOS. > > > > Does anyone know if it is possible to determine if this is the > > case? ie is there a way to be informed if throttling has occurred? > > Theoretically it is possible. I know off-topic tool reporting this. > Also you can just monitor CPU temperature, depending on CPU type. Monitoring CPU temperature is a bit difficult, there are a lack of tools=20 (although I have some code it's not complete). The problem is that the CPU temperature is only a proxy measurement, I=20 would much prefer to be told directly the BIOS is throttling rather=20 than guess :) =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart2143077.YycXeOppJp Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iD8DBQBKpvtK5ZPcIHs/zowRArRGAJ43KPHEEicOPVx7i/L7sAF51x5N3gCcCM8F OID4CKFBz4YZYvent3BPn6g= =sI8V -----END PGP SIGNATURE----- --nextPart2143077.YycXeOppJp--