From owner-freebsd-questions Sun Feb 27 6:31:48 2000 Delivered-To: freebsd-questions@freebsd.org Received: from mail1.rdc3.on.home.com (mail1.rdc3.on.home.com [24.2.9.40]) by hub.freebsd.org (Postfix) with ESMTP id B431337B53D for ; Sun, 27 Feb 2000 06:31:46 -0800 (PST) (envelope-from pnmurphy@home.com) Received: from home.com ([24.42.55.28]) by mail1.rdc3.on.home.com (InterMail v4.01.01.00 201-229-111) with ESMTP id <20000227143145.RHSC9986.mail1.rdc3.on.home.com@home.com>; Sun, 27 Feb 2000 06:31:45 -0800 Message-ID: <38B9354E.879F116B@home.com> Date: Sun, 27 Feb 2000 09:31:42 -0500 From: Paul Murphy X-Mailer: Mozilla 4.7 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Ben Smithurst , freebsd-questions Subject: Re: My machine prints "calcru: negative time..." References: <0ff301bf8096$dc1cfc00$0200000a@danco.home> <38B917D8.B6DA7DB5@home.com> <20000227132953.A47478@strontium.scientia.demon.co.uk> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > > It is actually a 486DX2/66. Is the 'Timecounter' settable in the > > kernel? > > I think only 586s and above have a TSC, so the machdep.tsc_freq sysctl may > not exist, or may be meaningless. > You must be right, 'sysctl -a' does not show a 'machdep.tca_freq'. So back to the original question: How to trace the root cause of the calcru problem? Setting kern.timecounter.method=0 -> 1 seems to have worked, does anyone know how much of a performance hit [as stated in the FAQ] this costs? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message