What is paging? Explain LRU, FIFO, OPT page replacement policy for the given page frame sequences. Page frame size is 4. 2,3,4,2,1,3,7,5,4,3,2,3,1 Calculate page hit and page miss

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written 7.0 years ago by

priyad84 • 350

modified 2.7 years ago by

pedsangini276 • 4.8k

Subject: Operating System

Topic: Memory Management

Difficulty: Low

operating systems

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written 2.7 years ago by

pedsangini276 • 4.8k

• modified 2.7 years ago

Paging is a function of memory management where a computer will store and retrieve data from a device’s secondary storage to the primary storage.

Sequence is 2,3,4,2,1,3,7,5,4,3,2,3,1 & frame size is 4

FIFO page replacement algorithm enter image description here

No of hits - 4
Miss (Page fault ) -9

LRU page replacement algorithm enter image description here

No of hits - 4
Miss (Page fault ) -9

Optimal page replacement algorithm enter image description here

No of hits - 6
Miss (Page fault ) -7

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