Looking for ways to find out the most I/O loaded directory in windows. similar to the following in linux to pin point the problem/bottleneck directory.
iostat -p 1
Try the Disk Usage (du.exe) utility from sysinternals (now owned by Microsoft). Not sure if it has exactly what you want out of the box, but I bet you could script it otherwise.
Here's the link to the Application site: http://technet.microsoft.com/en-us/sysinternals/bb896651
Here's the command usage from that site:
Usage: du [-c] [-l | -n | -v] [-u] [-q]
-c Print output as CSV. -l Specify subdirectory depth of information (default is all levels). -n Do not recurse. -q Quiet (no banner). -u Count each instance of a hardlinked file. -v Show size (in KB) of intermediate directories.