Date: Thu, 27 Apr 2000 07:32:46 -0700 From: Alfred Perlstein <bright@wintelcom.net> To: Dave Boers <djb@ifa.au.dk> Cc: freebsd-smp@FreeBSD.ORG Subject: Re: hlt instructions and temperature issues Message-ID: <20000427073245.J489@fw.wintelcom.net> In-Reply-To: <20000427142613.A7795@relativity.student.utwente.nl>; from djb@ifa.au.dk on Thu, Apr 27, 2000 at 02:26:13PM %2B0200 References: <20000427142613.A7795@relativity.student.utwente.nl>
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* Dave Boers <djb@ifa.au.dk> [000427 05:57] wrote: > Not being a kernel programmer, I have the following question. If it is a > dumb question, please excuse me, but I still need an answer :-) > > I have noticed that the difference in processor temperatures between idle > and full load on Abit BP6 dual celeron systems is much less for FreeBSD (2 > degrees celcius) than it is for Linux (13 degrees Celcius). Also overall > system temperature seems to be much higher using FreeBSD than Linux. I have > two Abit BP6 boxes sitting here, one running FreeBSD, the other Linux. The > Linux box is 30 degrees celcius while the FreeBSD one is 50 degrees > Celcius. > > So my question is, is FreeBSD issuing hlt instructions when the cpu's are > idle or not? Might this explain the difference between Linux and FreeBSD? http://www.freebsd.org/FAQ/misc.html#AEN3892 -Alfred To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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