Page removal algorithm

Outgoing  page makes room for the incoming page.

Which page should go out ?

Page fault slows down the execution of a job.

Aim: minimize the no. of page faults.

The outgoing page cannot be selected arbitrarily.

Following algorithms can be used to remove pages:

  1. FIFO
  2. LRU
  3. OPT
  4. LFU
  5. NUR



 


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