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Which Page Replacement Algorithm Is Used in Windows?

Alexander Ross • • 7 min read
Which Page Replacement Algorithm Is Used in Windows?
It explains you three page replacement algorithms: FIFO, LRU and CLOCK. Operating Systems (Virtual Memory). On the point 9.10.

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Similarly one may ask, which page replacement algorithm is best?

LRU resulted to be the best algorithm for page replacement to implement, but it has some disadvantages. In the used algorithm, LRU maintains a linked list of all pages in the memory, in which, the most recently used page is placed at the front, and the least recently used page is placed at the rear.

Similarly, what are the types of page replacement algorithm? Page Replacement Algorithms :

  • First In First Out (FIFO) – This is the simplest page replacement algorithm.
  • Optimal Page replacement – In this algorithm, pages are replaced which would not be used for the longest duration of time in the future.
  • Least Recently Used – In this algorithm page will be replaced which is least recently used.

People also ask, which page replacement algorithm is used in Linux?

The 3 algorithms discussed in this paper are: NRU: Not Recently Used, we scan through memory and evict every page that wasn't accessed since we last scanned it. LRU: we evict those pages that haven't been accessed for the longest time. LFU: we evict those pages that have been accessed least frequently in recent times.

What is page replacement algorithm in operating system?

Page replacement algorithms are the techniques using which an Operating System decides which memory pages to swap out, write to disk when a page of memory needs to be allocated. This process determines the quality of the page replacement algorithm: the lesser the time waiting for page-ins, the better is the algorithm.

Related Question Answers

Which is better FIFO or LRU?

FIFO keeps the things that were most recently added. LRU is, in general, more efficient, because there are generally memory items that are added once and never used again, and there are items that are added and used frequently. LRU is much more likely to keep the frequently-used items in memory.

Why do we need page replacement algorithm?

Page replacement algorithms are an important part of virtual memory management and it helps the OS to decide which memory page can be moved out, making space for the currently needed page. However, the ultimate objective of all page replacement algorithms is to reduce the number of page faults.
Alexander Ross
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Alexander Ross

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.