Question

Advantage and disadvantage of optimal page replacement algorithm

Answer 1

Advantages of Optimal Page Replacement Algorithm are as follows:

1) It is less complex and easy to implement.

2) A page is replaced with minimum fuss.

3) Simple data structures are used for this purpose.

Disadvantages of Optimal Replacement Algorithm are as follows:

1) Not all operating systems can implement this algorithm.

2) Error detection is harder.

3) Least recently used page will be replaced which may sometimes take a lot of time.

Answer 2

"Advantages due to "optimal page replacement" algorithm:

· It is easy to implement.

· It requires minimum fuss is to replace the page.

· In this algorithm, data structures used are simple.

Disadvantages of "optimal page replacement" algorithm:

· It is very difficult to detect the errors present in the algorithm.

· It is not support in all types of "operating system".

· It consumes more time"