Question:
CPU Utilization
Consider a demand-paging system with the following time-measured utilizations:
CPU utilization 20%
Paging disk 97.7%
Other I/O devices 5%
For each of the following say, whether it will (or is likely to) improve CPU utilization. Explain the answer.
a. Install a faster CPU.
b. Install a bigger paging disk.
c. Increase the degree of multiprogramming
d. Decrease the degree of multiprogramming
e. Install more main memory
f. Install a faster hard disk or multiple controllers with multiple hard disks
g. Add prepaging to the page-fetch algorithms
h. Increase the page size