Optimal Page Replacement Algorithm

The Optimal Page Replacement Algorithm manages computer memory by swapping out the page that will not be needed for the longest time in the future. When the memory is full and a new page is required, it predicts future page requests and removes the page whose next use is farthest away. Although it provides the best performance in theory, it’s mainly used as a benchmark because it requires perfect knowledge of future requests, which isn’t possible in real-time systems. This approach helps minimize the number of page faults, improving overall system efficiency.