Final Exam. May 8, 2001. Question 1

Consider a demand-paging system with the folling time-measured utilizations:

CPU Utilization	20.0%
Paging disk	97.7%
Other I/O devices	5.1%

For each of the following modifications to the system, state:

Whether the modification is likely to improve CPU utilization. (This is a yes/no answer).
Why or why not? (If there are certain conditions under which a modification will improve CPU utilization, state them).

a. Install a faster CPU.

b. Install a bigger paging device.

c. Increase the degree of multiprogramming.

d. Decrease the degree of multiprogramming.

e. Install more memory.

f. Install a faster hard disk.

a.	Install a faster CPU.
b.	Install a bigger paging device.
c.	Increase the degree of multiprogramming.
d.	Decrease the degree of multiprogramming.
e.	Install more memory.
f.	Install a faster hard disk.