From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <607e471abba07903c9f90659e4cf9625@plan9.ucalgary.ca>
To: 9fans@cse.psu.edu
Date: Wed, 18 Aug 2004 13:46:32 -0600
From: andrey mirtchovski <mirtchov@cpsc.ucalgary.ca>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Subject: [9fans] some light reading
Topicbox-Message-UUID: d60d1d2e-eacd-11e9-9e20-41e7f4b1d025

"Developing Simple and Efficient Package System using Union Mounts":

		http://www.osnews.com/story.php?news_id=8069

check the comments too -- seems like 2000 binds would be 'very inefficient'...

i just had to check for myself:

	plan9% ramfs
	plan9% cd /tmp
	plan9% time ls
	0.00u 0.00s 0.00r 	 ls
	plan9% cp /bin/bind bind.tmp
	plan9% cat > bind.rc
	#!/bin/rc

	for (i in `{seq 1 2000}) bind.tmp -a /usr/andrey/tmp .
	plan9% chmod 775 bind.rc
	plan9% time bind.rc
	0.27u 1.58s 2.52r 	 bind.rc
	plan9% time ls > /dev/null
	13.17u 0.40s 15.25r 	 ls
	plan9% ls | wc -l
	  46002
	plan9% ls /usr/andrey/tmp | wc -l
	     23
	plan9% echo '46000/23' | hoc
	2000
	plan9%

andrey