Re: which is faster ? ext3, reiserfs, xfs, jfs

[Kirk Strauser <kirk@strauser.com>]

> here's the fun freebie script to test which filesystem is faster
> 	- format the disk(partitions) once
> 	- do 3 passes copying 2.3GB of files from /dev/hda to /dev/hdc

Your benchmark is fundamentally skewed.  It uses tar to copy files from your 
root dirctory to $MNT without caching the intermediate tarballs.  This means 
that in each case, you're also measuring the read speed of your normal 
filesystems in addition to the write speed of your target.  In the first 
pass, you're also timing the speed at which your filesystems can fill their 
directory listing caches, which will artificially improve subsequent runs.
-- 
Kirk Strauser