performance filesystem benchmark tools

1      IOzone Filesystem Benchmark

2    atime 

http://tldp.org/LDP/solrhe/Securing-Optimizing-Linux-RH-Edition-v1.3/chap6sec73.html

3 

4 hdparm

The hdparm command ("hdparm" stands for "hard disk parameters") allows you to examine and modify drive configuration. Not all modifications are good: some will lower the performance, and some can even be wildly destructive, leading to data loss. The man hdparm command shows you all the options, and highlights the dangerous ones