From owner-freebsd-current@FreeBSD.ORG  Fri Feb 10 08:33:09 2006
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: 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 33E1C16A420
	for <current@freebsd.org>; Fri, 10 Feb 2006 08:33:09 +0000 (GMT)
	(envelope-from phk@critter.freebsd.dk)
Received: from pasmtp.tele.dk (pasmtp.tele.dk [193.162.159.95])
	by mx1.FreeBSD.org (Postfix) with ESMTP id C98BB43D48
	for <current@freebsd.org>; Fri, 10 Feb 2006 08:33:08 +0000 (GMT)
	(envelope-from phk@critter.freebsd.dk)
Received: from critter.freebsd.dk (0x535c0e2a.sgnxx1.adsl-dhcp.tele.dk
	[83.92.14.42]) by pasmtp.tele.dk (Postfix) with ESMTP id 8C3FB1EC36F;
	Fri, 10 Feb 2006 09:33:05 +0100 (CET)
Received: from critter.freebsd.dk (localhost [127.0.0.1])
	by critter.freebsd.dk (8.13.4/8.13.4) with ESMTP id k1A8X1fW003726;
	Fri, 10 Feb 2006 08:33:01 GMT (envelope-from phk@critter.freebsd.dk)
To: Mike Jakubik <mikej@rogers.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Fri, 10 Feb 2006 01:01:48 EST."
	<43EC2C4C.5000709@rogers.com> 
Date: Fri, 10 Feb 2006 08:33:01 +0000
Message-ID: <3725.1139560381@critter.freebsd.dk>
Sender: phk@critter.freebsd.dk
Cc: current@freebsd.org
Subject: Re: [TEST/REVIEW] cpu time accounting patch, step 2 
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 10 Feb 2006 08:33:09 -0000

In message <43EC2C4C.5000709@rogers.com>, Mike Jakubik writes:
>Poul-Henning Kamp wrote:
>> 	http://phk.freebsd.dk/patch/cputime.patch 
>>
>> This patch enables the new cpu time accounting method for i386 with
>> TSC, all amd64 and sparc64 (?) and i386 with Geode cpu.
>>   
>
>I got a bunch of these during the first bootup.
>
>--
>calcru: runtime went backwards from 1227916 usec to 1227883 usec for pid 
>30 (pagezero)

Yes, that will happen right now until the calibration of the TSC's
max frequency is completed.

I'm analyzing various solutions to that.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.