Round Robin

What is Round-Robin?

• In computer science and information technology, it is one of the scheduling algorithms.

• This algorithm is used in multi-tasking environments to fairly allocate CPU time and ensure processes are executed fairly.

• It is often used in real-time systems or conversational systems where response time is important.

How Round-Robin Works

• The round robin algorithm assigns a fixed time slice (quantum) to each operation, and when this time is up, the operation moves to the next one.

• Each operation is executed in order, and is only executed for the given time slice.

• If the operation finishes before the time slice ends, it moves to the next operation; otherwise, it goes to the end of the waiting queue and waits for its next turn.

Advantages and Disadvantages of Round-Robin

• The round robin algorithm provides equal execution opportunities for all operations and, by ensuring short response times, prevents infinite loops.

• However, if the execution times of all operations are not equal or if the priorities of the operations differ, fair scheduling may not be guaranteed.