[CentOS] Finding i/o bottleneck

Mon Sep 26 16:15:06 UTC 2011
Nicolas Ross <rossnick-lists at cybercat.ca>

>> In the meen time, I'd still like to find a tool to know what files are
>> requeted to the filesystem and what ones are being waited for...
> atop and iotop are tools that do that...when the kernel has been
> appropriately patched or the kernel is of an appropriate version...

I did used these utilities, while it can help see what processes are 
generating IO, it doesn't show what files on the file system are being asked 
or waited for.

Basicly, what I'm searching is an equivalent for fs_usage on Mac OS X, or 
tcpdump, but on a bloc device...