Date: Fri, 10 Aug 2007 00:38:06 -0700 (PDT) From: Doug Barton <dougb@FreeBSD.org> To: =?iso-8859-15?Q?Dag-Erling_Sm=F8rgrav?= <des@des.no> Cc: hackers@freebsd.org Subject: Re: Core temperature Message-ID: <alpine.BSF.0.999.0708100034400.910@ync.qbhto.arg> In-Reply-To: <86myx0pa9i.fsf@ds4.des.no> References: <86myx0pa9i.fsf@ds4.des.no>
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This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --0-1543664049-1186731489=:910 Content-Type: TEXT/PLAIN; format=flowed; charset=iso-8859-15 Content-Transfer-Encoding: 8BIT On Fri, 10 Aug 2007, Dag-Erling Smørgrav wrote: > I've written a quick-and-dirty driver for the built-in digital > temperature sensor in Intel's Core and Core 2 CPUs (and Xeons built on > the Core architecture). The driver exports four sysctl nodes under > hw.coretemp: > > hw.coretemp.tjmax Maximum core temperature (currently hardcoded > To 100°C, may actually be 85°C on some systems) > > hw.coretemp.delta current temperature in °C below Tj(max) > > hw.coretemp.interrupt Lower 32 bits of the IA32_THERMAL_INTERRUPT MSR > > hw.coretemp.status Lower 32 bits of the IA32_THERMAL_STATUS MSR > > I intend to move these into dev.cpu.N in a later version. This is working for me on my C2D: sysctl hw.coretemp hw.coretemp.tjmax: 100 hw.coretemp.delta: -42 hw.coretemp.interrupt: 9954320 hw.coretemp.status: 2284454592 That temp agrees with the one reported by wmbsdbatt, for what that's worth. hth, Doug -- This .signature sanitized for your protection --0-1543664049-1186731489=:910--
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