Q34,p3,J14. Consider a uniprocessor system where new processes arrive at an average of five processes per minute and each process needs an average of 6 seconds of service time. What will be the CPU utilization ?

(A) 80 % (B) 50 %

(C) 60 % (D) 30 %

Answer B.

Arrival time	process
0	P0
12	P1
24	P2
36	P3
48	P4
60	P5

Gantt chart.

1-----6(p0)----12(idle)-----18(p1)-----24(idle)-----30(p2)-----36(idle)-----42(p3)-----48(idle)-------54(p4)-------60(idle)-------66(p5).