From owner-freebsd-current@FreeBSD.ORG Tue Jun 28 21:29:49 2005 Return-Path: X-Original-To: freebsd-current@FreeBSD.org Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7282E16A41C; Tue, 28 Jun 2005 21:29:49 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: from mv.twc.weather.com (mv.twc.weather.com [65.212.71.225]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1D6D543D1D; Tue, 28 Jun 2005 21:29:49 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: from [10.50.41.231] (Not Verified[65.202.103.25]) by mv.twc.weather.com with NetIQ MailMarshal (v6, 0, 3, 8) id ; Tue, 28 Jun 2005 17:43:27 -0400 From: John Baldwin To: Jens Schweikhardt Date: Tue, 28 Jun 2005 17:29:21 -0400 User-Agent: KMail/1.8 References: <20050516113420.GA786@schweikhardt.net> <200506271529.22790.jhb@FreeBSD.org> <20050628210749.GA763@schweikhardt.net> In-Reply-To: <20050628210749.GA763@schweikhardt.net> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200506281729.22302.jhb@FreeBSD.org> Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: freebsd-current@FreeBSD.org, phk@FreeBSD.org Subject: Re: Timekeeping hosed by factor 3, high lapic[01] interrupt rates X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Jun 2005 21:29:49 -0000 On Tuesday 28 June 2005 05:07 pm, Jens Schweikhardt wrote: > John et al, > > # Forget SMP and go back to UP for now. Turn off ntpd if you are using it, > then # do something like this: > # > # # ntpdate ntp.xxxx ; sleep 10 ; ntpdate ntp.xxxx > # > # And try it both with the timecounter set to TSC and with the timecounter > set # to i8254. > > Here we go, kernel with your second patch, boot with kern.smp.disabled=1. Can you get the same ntpdate output for the kernel without the patch? -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org