From owner-freebsd-current@FreeBSD.ORG  Fri Oct 28 08:46:03 2005
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
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 CC60716A41F
	for <freebsd-current@freebsd.org>; Fri, 28 Oct 2005 08:46:03 +0000 (GMT)
	(envelope-from phk@critter.freebsd.dk)
Received: from phk.freebsd.dk (phk.freebsd.dk [130.225.244.222])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 731F743D49
	for <freebsd-current@freebsd.org>; Fri, 28 Oct 2005 08:46:03 +0000 (GMT)
	(envelope-from phk@critter.freebsd.dk)
Received: from critter.freebsd.dk (unknown [192.168.48.2])
	by phk.freebsd.dk (Postfix) with ESMTP id 91752BC84;
	Fri, 28 Oct 2005 08:46:00 +0000 (UTC)
To: Massimo Lusetti <massimo@cedoc.mo.it>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Fri, 28 Oct 2005 10:23:05 +0200."
	<1130487786.4259.7.camel@massimo.datacode.it> 
Date: Fri, 28 Oct 2005 10:46:00 +0200
Message-ID: <29620.1130489160@critter.freebsd.dk>
Sender: phk@critter.freebsd.dk
Cc: freebsd-current@freebsd.org
Subject: Re: Timers and timing, was: MySQL Performance 6.0rc1 
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, 28 Oct 2005 08:46:03 -0000

In message <1130487786.4259.7.camel@massimo.datacode.it>, Massimo Lusetti write
s:

>For the records here is the result on a Linux kernel 2.6.12-1.1380_FC3
>(Fedora Core 3) on a P4 1.8G
>
>       null function: 0.00947
>            getpid(): 0.00988
>              time(): 3.80196
>      gettimeofday(): 4.04731

That is actually an interesting result because it could indicate
that RH is not too happy about the fast&loose timekeeping in the
default Linux kernel...

-- 
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.