What are the drawbacks of FCFS scheduling?

What are the drawbacks of FCFS scheduling?

FCFS, or First-Come, First-Served scheduling, can lead to several drawbacks, such as the convoy effect, where shorter processes wait for longer ones, causing inefficiency.

Can you explain the convoy effect?

Sure! The convoy effect occurs when a group of shorter processes gets stuck behind a longer process, leading to increased wait times and reduced overall system performance.

Are there any scenarios where FCFS is beneficial?

Yes, FCFS can be beneficial in simple systems where tasks are similar in length, as it is easy to implement and understand.

What are some alternatives to FCFS scheduling?

Alternatives include Shortest Job Next (SJN), Round Robin (RR), and Priority Scheduling, each with its own advantages and drawbacks.

How does Round Robin compare to FCFS?

Round Robin is generally more efficient for time-sharing systems, as it allows for better responsiveness by giving each process a time slice, reducing wait times compared to FCFS.