From owner-freebsd-questions Thu Mar 12 22:58:04 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id WAA05560 for freebsd-questions-outgoing; Thu, 12 Mar 1998 22:58:04 -0800 (PST) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from dt050ndd.san.rr.com (@dt050ndd.san.rr.com [204.210.31.221]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id WAA05533 for ; Thu, 12 Mar 1998 22:57:57 -0800 (PST) (envelope-from Studded@dal.net) Received: from dal.net (Studded@localhost [127.0.0.1]) by dt050ndd.san.rr.com (8.8.8/8.8.8) with ESMTP id WAA04306; Thu, 12 Mar 1998 22:57:55 -0800 (PST) (envelope-from Studded@dal.net) Message-ID: <3508D8F3.E1306752@dal.net> Date: Thu, 12 Mar 1998 22:57:55 -0800 From: Studded Organization: Triborough Bridge & Tunnel Authority X-Mailer: Mozilla 4.04 [en] (X11; I; FreeBSD 2.2.6-BETA-0312 i386) MIME-Version: 1.0 To: David Kelly CC: FreeBSD-questions@FreeBSD.ORG Subject: Re: CPU calibration problems References: <199803130304.VAA02572@nospam.hiwaay.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG David Kelly wrote: > > Studded writes: > > For some time now I've had problems with the calibration of my CPU > > speed during boot. I have a Dell XPS P90 machine, and I currently have a > > '586 Pentium Overdrive chip in it which normally clocks out to 150.34. > > However, here's some examples of incorrect values: > > > > CPU: Pentium (109.75-MHz 586-class CPU) > > CPU: Pentium (118.77-MHz 586-class CPU) > > I have one P90 that also boots with squirelly CPU speeds reported. > Never seen it as wildly off as yours. OTOH, I haven't booted it as many > times as you've documented. :-) This is my home machine. I use it to test -Stable builds, scripts, etc. I have it configured pretty much like the systems I administer remotely so that I can test changes. It gets booted a lot. :) > Last time booted it was approximately correct. Has been running several > months now. Just what is the real problem if this value is reported > wrong? Well, I don't know that small errors are a big problem. However as I pointed out in my follow up post when the difference gets larger I get more and more calcru errors, such as /kernel: calcru: negative time: -84750 usec. When the difference is very high every single operation gives an error, it's like fireworks. :) Frankly my main concern was that I be able to overclock again, but I wasn't comfortable doing that till I knew for sure that I could get the thing to work properly at the regular speed. Thanks for your interest, Doug -- *** Chief Operations Officer, DALnet IRC network *** *** Proud operator, designer and maintainer of the world's largest *** Internet Relay Chat server. 5,328 clients and still growing. *** Try spider.dal.net on ports 6662-4 (Powered by FreeBSD) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message