From owner-freebsd-stable@FreeBSD.ORG  Wed Oct  8 07:42:54 2008
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 9CB8C106568B
	for <freebsd-stable@freebsd.org>; Wed,  8 Oct 2008 07:42:54 +0000 (UTC)
	(envelope-from smithi@nimnet.asn.au)
Received: from sola.nimnet.asn.au (paqi.nimnet.asn.au [220.233.188.227])
	by mx1.freebsd.org (Postfix) with ESMTP id 1D6128FC22
	for <freebsd-stable@freebsd.org>; Wed,  8 Oct 2008 07:42:53 +0000 (UTC)
	(envelope-from smithi@nimnet.asn.au)
Received: from localhost (localhost [127.0.0.1])
	by sola.nimnet.asn.au (8.14.2/8.14.2) with ESMTP id m987gqsB001679;
	Wed, 8 Oct 2008 18:42:52 +1100 (EST)
	(envelope-from smithi@nimnet.asn.au)
Date: Wed, 8 Oct 2008 18:42:52 +1100 (EST)
From: Ian Smith <smithi@nimnet.asn.au>
To: lhmwzy <lhmwzy@gmail.com>
In-Reply-To: <78fb9d960810080019j3b73e3ffidc189c716fb7a1de@mail.gmail.com>
Message-ID: <20081008183552.W16723@sola.nimnet.asn.au>
References: <E1KnA2b-0007ls-8u@dilbert.ticketswitch.com>
	<200810071314.45922.max@love2party.net> <48EB5ADD.2090900@modulus.org>
	<78fb9d960810072118k47a64097yaa486ef5179efb1@mail.gmail.com>
	<20081008165835.C16723@sola.nimnet.asn.au>
	<78fb9d960810080019j3b73e3ffidc189c716fb7a1de@mail.gmail.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Cc: freebsd-stable@freebsd.org
Subject: Re: zfs quota question
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Oct 2008 07:42:54 -0000

On Wed, 8 Oct 2008, lhmwzy wrote:
 > OK.It's my mistake.
 > Improve it again:
 > 
 > #!/bin/sh
 > find $1 -type f -ls  | awk '{j += $7} END {printf("%.2fM\n",j/1024/1024)}'

Sure.  Here it runs about 7% faster precalculating one division:

$ time find . -type f -ls  | awk '{j += $7} END {printf("%.2fM\n",j/1048576)}'
        2.69 real         0.64 user         1.21 sys
6586.34M

 > > $ du -d0 .
 > > 6781976 .
 > >
 > > Took 1.5 seconds, and comes to 69447434424, ie bytes allocated for those

And my mistake, transcribing from the calculator: should be 6944743424.

cheers, Ian