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Que. In a demand paging memory system, page table is held in registers. The time taken to service a page fault is 8 m.sec. If an empty frame is available or if the replaced page is not modified, and it takes 20 m.sec., if the replaced page is modified. What is the average access time to service a page fault assuming that the page to be replaced is modified 70% of the time?
a. 11.6 m.sec
b. 16.4 m.sec
c. 28 m.sec
d. 14 m.sec
Answer:11.6 m.sec
shivaraj :(May 23, 2018) (1-P)* memory access time + P * page fault
0.7 * 20 + 0.3 * 8 = 16.4
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Anandh :(May 27, 2019) (1-P)* memory access time + P * page fault
(1-0.7) * 20 + 0.3 * 8 = 11.6
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