3 votes 3 votes If the waiting time for a process is p and there are n processes in the memory then the CPU utilization is given by, a. $\frac{p}{n}$ b. $p^{n}$ c. $1-p^{n}$ d. $n-p^{n}$ Operating System operating-system process-scheduling + – Pradip Nichite asked Dec 9, 2015 • edited Oct 2, 2017 by LeenSharma Pradip Nichite 3.9k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
5 votes 5 votes waiting time of 1 process is p " " n " pn say,if total time is 1 Utilization time will be 1- pn Answer is (C) srestha answered Dec 9, 2015 srestha comment Share Follow See all 6 Comments See all 6 6 Comments reply Show 3 previous comments prayas commented Jan 13, 2018 reply Follow Share Insufficient information.You need to know the burst 0 votes 0 votes srestha commented Jan 13, 2018 reply Follow Share @nitish utilization=1- waiting time @pranab yes, correct . it should be 1-np 0 votes 0 votes prayas commented Jan 13, 2018 reply Follow Share @ srestha You need to know burst for sure.They don't cancel out. 0 votes 0 votes Please log in or register to add a comment.
1 votes 1 votes The question should be the fraction of waiting time for a process is p, not the waiting time. the probability that all the processes would wait same time would be p^n. and that time cpu would be ideal. So CPU utilization time = 1 - p^n Vegeta answered Oct 22, 2018 Vegeta comment Share Follow See all 0 reply Please log in or register to add a comment.
