What is multilevel feedback queue?

Multilevel Feedback Queue

In computer science, a multilevel feedback queue is a scheduling algorithm. It is intended to meet the following design requirements for multimode systems:

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Multilevel Feedback Queue
... In computer science, a multilevel feedback queue is a scheduling algorithm ... on their need for the processor Multiple FIFO queues are used and the operation is as follows A new process is positioned at the end of the top-level FIFO queue ... At some stage the process reaches the head of the queue and is assigned the CPU ...
Scheduling Algorithms - Operating System Process Scheduler Implementations - Summary
... System Preemption Algorithm Amiga OS Yes Prioritized Round-robin scheduling FreeBSD Yes Multilevel feedback queue Linux pre-2.6 Yes Multilevel feedback queue Linux 2.6-2.6.23 Yes O(1) scheduler Linux post-2 ...

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    English people apparently queue up as a sort of hobby. A family man might pass a mild autumn evening by taking the wife and kids to stand in the cinema queue for a while and then leading them over for a few minutes in the sweetshop queue and then, as a special treat for the kids, saying “Perhaps we’ve time to have a look at the Number Thirty-One bus queue before we turn in.”
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