From owner-freebsd-questions Tue May 23 11: 9:50 2000 Delivered-To: freebsd-questions@freebsd.org Received: from web2.sea.nwserv.com (web2.sea.nwserv.com [216.145.16.2]) by hub.freebsd.org (Postfix) with ESMTP id 861F237B83A for ; Tue, 23 May 2000 11:09:46 -0700 (PDT) (envelope-from asaddi@philosophysw.com) Received: from localhost (asaddi@localhost) by web2.sea.nwserv.com (8.9.3/8.9.2) with ESMTP id LAA72931; Tue, 23 May 2000 11:09:09 -0700 (PDT) (envelope-from asaddi@philosophysw.com) Date: Tue, 23 May 2000 11:09:09 -0700 (PDT) From: Allan Saddi X-Sender: asaddi@web2.sea.nwserv.com To: Andre Albsmeier Cc: Philipp Huber , freebsd-questions@FreeBSD.ORG, johan.dahlberg@home.se Subject: Re: Temperatures In-Reply-To: <20000522175007.A2288@schlappy.mobile.tld> Message-ID: Organization: Philosophy SoftWorks MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Envelope-To: andre@akademie3000.de Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Mon, 22 May 2000, Andre Albsmeier wrote: > I think, what Johan wanted to know is: Does FreeBSD use the HLT > instruction when idle'ing around? If yes, the CPU should be cooler > than it is now... I found this in sys/i386/i386/swtch.s: ENTRY(default_halt) sti #ifndef SMP hlt /* XXX: until a wakeup IPI */ #endif ret So it appears Ben Smithurst was correct. Under FreeBSD SMP, both CPUs are always running at full speed. -- Allan Saddi "The Earth is the cradle of mankind, asaddi@philosophysw.com but we cannot live in the cradle http://www.philosophysw.com/asaddi/ forever." - K.E. Tsiolkovsky To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message