1 votes 1 votes If a page fault occurs on an average every 1000 instructions and average instruction time is 100ns without page fault and 100ms with page fault. what is average instruction time? Operating System operating-system page-fault + – kirti singh asked Nov 5, 2015 kirti singh 490 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 1 votes 1 votes Page fault rate = 1/1000 T =Page fault rate * Page Fault Service Time + (1-Page Fault rate)*Memory access time = $\frac{1}{1000} * 100 * 10 ^6$+ $(1- \frac{1}{1000}) * 100$ = 100099.9 ns Umang Raman answered Nov 5, 2015 • selected Nov 5, 2015 by Arjun Umang Raman comment Share Follow See all 0 reply Please log in or register to add a comment.