What do you mean by Belady's Anomaly. - Describe with example.
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Answer Posted / assi
normally, increasing the number of frames allocated to a
process will reduce the number of page faults
however, not always the case
1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5
with this reference string, actually have more page faults
with 4 frames than with 3
this rare but highly undesirable situation is known as
Belady's anomaly
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