GATE - 2009 | OS | In which one of the following page replacement policies, Belady’s anomaly

GATE - 2009 | OS | In which one of the following page replacement policies, Belady’s anomaly
Posted on 13-02-2022

GATE - 2009 [Operating System]

Question:

In which one of the following page replacement policies, Belady’s anomaly may occur?

A

FIFO

B

Optimal

C

LRU

D

MRU

  

Solution:

Option (A) is Correct.

Bélády's anomaly is the phenomenon in which increasing the number of page frames results in an increase in the number of page faults for certain memory access patterns. This phenomenon is commonly experienced when using the first-in first-out.

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