Valid page replacement policy - Currently used policy

Q.  Operating system supports different page replacement policy. From the given below option which is not a valid page replacement policy?
- Published on 22 Jun 15

a. Least Recently Used
b. First in first out
c. Currently used policy
d. Optimal page replacement policy

ANSWER: Currently used policy
 

    Discussion

  • Nirja Shah   -Posted on 25 Nov 15
    - The Virtual Memory Manager (VMM) may exercise a local or global page replacement policy as follows:

    1. Swap pages from the pages allocated to the process, which experienced the page fault using local page replacement.

    2. Let the process enlarge its working set and swap pages from the processes that have reached the upper limit of allocate pages, using the global page replacement policy.

    3. Let the process enlarge its working set and swap pages from the processes that have greater than the minimum allocation of pages with them using global page replacement policy.

    4. Let the upper limit set for processes be revised dynamically i.e. enlarge the allocated number of pages for all pages.

Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)