From owner-freebsd-current  Wed Dec 19 16:40:12 2001
Delivered-To: freebsd-current@freebsd.org
Received: from rwcrmhc52.attbi.com (rwcrmhc52.attbi.com [216.148.227.88])
	by hub.freebsd.org (Postfix) with ESMTP id 3518B37B41B
	for <freebsd-current@freebsd.org>; Wed, 19 Dec 2001 16:40:08 -0800 (PST)
Received: from InterJet.elischer.org ([12.232.206.8])
          by rwcrmhc52.attbi.com
          (InterMail vM.4.01.03.27 201-229-121-127-20010626) with ESMTP
          id <20011220004007.EILD6450.rwcrmhc52.attbi.com@InterJet.elischer.org>;
          Thu, 20 Dec 2001 00:40:07 +0000
Received: from localhost (localhost.elischer.org [127.0.0.1])
	by InterJet.elischer.org (8.9.1a/8.9.1) with ESMTP id QAA47792;
	Wed, 19 Dec 2001 16:24:07 -0800 (PST)
Date: Wed, 19 Dec 2001 16:24:06 -0800 (PST)
From: Julian Elischer <julian@elischer.org>
To: Matthew Dillon <dillon@apollo.backplane.com>
Cc: freebsd-current@freebsd.org
Subject: Re: Seeing a lot of 'microuptime() went backwards' messages during
 heavy disk I/O
In-Reply-To: <200112192259.fBJMxMF90892@apollo.backplane.com>
Message-ID: <Pine.BSF.4.21.0112191623280.46573-100000@InterJet.elischer.org>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-current@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-current.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-current>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-current>
X-Loop: FreeBSD.ORG

I've been seeing them a lot too on a "recent" (NOV) -current


On Wed, 19 Dec 2001, Matthew Dillon wrote:

>     I'm seeing a lot of this during heavy disk I/O (5 postmark benchmarks
>     running in parallel):
> 
> microuptime() went backwards (44525.3954411 -> 44524.563978)
> microuptime() went backwards (57425.4282241 -> 57424.766121)
> microuptime() went backwards (57425.4282241 -> 57424.845844)
> microuptime() went backwards (60724.4427887 -> 60724.686232)
> microuptime() went backwards (60724.4427887 -> 60724.768808)
> microuptime() went backwards (61685.4418845 -> 61685.102724)
> microuptime() went backwards (61924.3906516 -> 61924.246151)
> microuptime() went backwards (62344.3800035 -> 62344.415407)
> 
>     Anyone know what's up?
> 
> 					-Matt
> 					Matthew Dillon 
> 					<dillon@backplane.com>
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-current" in the body of the message
> 


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message