page replacement

What Is The Purpose Of Page Replacement Algorithm?

by

What Is The Purpose Of Page Replacement Algorithm? In a computer operating system that uses paging for virtual memory management, page replacement algorithms decide which memory pages to page out, sometimes called swap out, or write to disk, when a page of memory needs to be allocated. What is LRU in operating system? LRU stands

How Is LRU Page Replacement Algorithm Implemented?

by

How Is LRU Page Replacement Algorithm Implemented? In the Least Recently Used (LRU) page replacement policy, the page that is used least recently will be replaced. Implementation: Add a register to every page frame – contain the last time that the page in that frame was accessed. Use a “logical clock” that advance by 1