单选题：Consider a demand-paging system. If the CPU utilization 13% and

Consider a demand-paging system. If the CPU utilization 13% and paging disk utilization 97%, what is the proper measure to improve the overall system utilization?@[B](1)
A. To increase multi-programming degree
B. To decrease multi-programming degree
C. To install a faster CPU
D. To load more I/O-bound processes




A.To increase multi-programming degree
B.To decrease multi-programming degree
C.To install a faster CPU
D.To load more I/O-bound processes


答案：B