I/O Wait Time, Disk Utilization

This tool calculates the waiting time seen by a processor and the utilization of the disk under various appropriate I/O models:

n=1 uses the no-waiting I/O model
n=2,3 uses the low-population I/O model
n between 4 and Tc/Ts uses the asymptotic I/O model
n greater than Tc/Ts uses the post-saturation I/O model from p613 of Computer Architecture.