From owner-freebsd-hackers@FreeBSD.ORG Fri Aug 10 11:25:48 2007 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 354F316A420 for ; Fri, 10 Aug 2007 11:25:48 +0000 (UTC) (envelope-from gahr@gahr.ch) Received: from cpanel03.rubas-s03.net (cpanel03.rubas-s03.net [195.182.222.73]) by mx1.freebsd.org (Postfix) with ESMTP id BD40113C469 for ; Fri, 10 Aug 2007 11:25:47 +0000 (UTC) (envelope-from gahr@gahr.ch) Received: from 80-218-187-205.dclient.hispeed.ch ([80.218.187.205] helo=gahrtop.localhost) by cpanel03.rubas-s03.net with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.63) (envelope-from ) id 1IJSck-0006Nd-QR; Fri, 10 Aug 2007 13:25:46 +0200 Message-ID: <46BC4B3C.1060302@gahr.ch> Date: Fri, 10 Aug 2007 13:25:48 +0200 From: Pietro Cerutti User-Agent: Thunderbird 2.0.0.6 (X11/20070808) MIME-Version: 1.0 To: =?UTF-8?B?RGFnLUVybGluZyBTbcO4cmdyYXY=?= , freebsd-hackers@freebsd.org References: <86myx0pa9i.fsf@ds4.des.no> <46BC4309.8000802@gahr.ch> <86r6mb7i9k.fsf@ds4.des.no> In-Reply-To: <86r6mb7i9k.fsf@ds4.des.no> X-Enigmail-Version: 0.95.2 OpenPGP: id=9571F78E; url=http://www.gahr.ch/pgp Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enig9F27992FBCD777D2ADE3896C" X-Antivirus-Scanner: Clean mail though you should still use an Antivirus X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cpanel03.rubas-s03.net X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - gahr.ch X-Source: X-Source-Args: X-Source-Dir: Cc: Subject: Re: Core temperature X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Aug 2007 11:25:48 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig9F27992FBCD777D2ADE3896C Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Dag-Erling Sm=C3=B8rgrav wrote: > Pietro Cerutti writes: >> Could you please try to explain these results? >> >> % sysctl hw.coretemp.tjmax hw.coretemp.delta hw.acpi.thermal.tz0.tempe= rature >> hw.coretemp.tjmax: 100 >> hw.coretemp.delta: -38 >> hw.acpi.thermal.tz0.temperature: 66.8C >> >> Shouldn't hw.coretemp.delta be (hw.coretemp.tjmax - >> hw.acpi.thermal.tz0.temperature)? >=20 > The value reported by hw.acpi.thermal.tz0.temperature most likely comes= > from a temperature sensor mounted somewhere on the motherboard, while > hw.coretemp.delta reports the temperature inside the CPU itself. In my= > experience, Core-based CPUs run very cool under light load, so the > result does not surprise me. >=20 > here's what coretemp reports on my file server: >=20 > hw.coretemp.tjmax: 100 > hw.coretemp.delta: -46 >=20 > although I believe this is actually one of the CPUs that have an 85=C2=B0= C > Tj(max), giving a core temperature of 39=C2=B0C and not 54=C2=B0C (the = box has a > 2.4 GHz C2D but spends most of its time barely ticking over at 200 MHz)= >=20 Thanks for clearing it! Regards, > DES --=20 Pietro Cerutti PGP Public Key: http://gahr.ch/pgp --------------enig9F27992FBCD777D2ADE3896C Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFGvEtAwMJqmJVx944RCn1XAJ9gwb2AAg2Eqo9NdnhVIR8gFJOaEQCgoWDY 5OzFvKRKmkBuRZye75VdAm4= =2D8B -----END PGP SIGNATURE----- --------------enig9F27992FBCD777D2ADE3896C--