Question

Consider the following page reference string: 6, 4, 1, 6, 2, 2, 3, 1, 3, 6, 5, 3, 1, 3, 1, 8. Find out the number of page faults, hit ratio, and miss ratio for the FIFO, Optimal, and LRU page replacement algorithms when there are 4-page frames. Identify which algorithm generates a higher number of page faults.

Answer 1

To find the number of page faults, hit ratio, and miss ratio for the FIFO, Optimal, and LRU page replacement algorithms with 4-page frames, we need to simulate the page replacement process.

Step-by-step explanation:

The page reference string provided is: 6, 4, 1, 6, 2, 2, 3, 1, 3, 6, 5, 3, 1, 3, 1, 8.

To find the number of page faults for each algorithm, we need to simulate the page replacement process using FIFO, Optimal, and LRU algorithms with 4-page frames.

FIFO (First-In, First-Out) replaces the oldest page in the frames. Optimal replaces the page that will not be used for the longest duration in the future. LRU (Least Recently Used) replaces the page that has not been used for the longest period of time.