0 votes 0 votes 1) Consider a system having 4 processes each take 0.6 fraction of time for I/O processing then CPU utilization. Main memory large enough to allocate all processes is _____________ A_i_$_h asked Nov 10, 2017 A_i_$_h 413 views answer comment Share Follow See all 7 Comments See all 7 7 Comments reply akash.dinkar12 commented Nov 10, 2017 reply Follow Share Is there any process size??? 0 votes 0 votes joshi_nitish commented Nov 10, 2017 reply Follow Share it will be 87.04% 0 votes 0 votes akash.dinkar12 commented Nov 10, 2017 reply Follow Share how?? 0 votes 0 votes joshi_nitish commented Nov 10, 2017 reply Follow Share probability that all process go for I/O = 0.64 probability that atleast one process available for CPU = 1-0.64 = 0.8704 = 87.04% P.S: fraction of time or a probaility of a process to be available for CPU burst is efficiency. 1 votes 1 votes Shubhanshu commented Nov 10, 2017 reply Follow Share @joshi_nitish IO processing should be overlapped as much as possible. 0 votes 0 votes hs_yadav commented Nov 10, 2017 reply Follow Share ..let all the process is going for I/O...then first 60ns cpu will be idle...after 60ns one process will be available ...and cpu will run this process till 160(cpu burst 100ns) and again second process is available .... here CPU utilization=(400/460)*100 (assumption let CPU burst time for process are 100ns) ???? 0 votes 0 votes A_i_$_h commented Nov 11, 2017 reply Follow Share @joshi the answer is right but what does the question Main memory large enough to allocate all processes is _____________ connected to finding CPU utilisation 0 votes 0 votes Please log in or register to add a comment.
