What are CPU scheduling algorithms and how do they work?

What are CPU scheduling algorithms and how do they work?

CPU scheduling algorithms are methods used by operating systems to allocate CPU time to various processes. They determine the order in which processes are executed, aiming to optimize performance and resource utilization.

Can you explain the different types of CPU scheduling algorithms?

Sure! The main types include First-Come, First-Served (FCFS), Shortest Job Next (SJN), Round Robin (RR), and Priority Scheduling. Each has its own advantages and use cases.

What is the Round Robin scheduling algorithm?

Round Robin is a pre-emptive scheduling algorithm where each process is assigned a fixed time slice or quantum. If a process doesn't finish within its time slice, it is moved to the back of the queue.

What are the advantages of using Priority Scheduling?

Priority Scheduling allows important processes to be executed first, improving responsiveness for critical tasks. However, it can lead to starvation for lower-priority processes.

How do these algorithms impact system performance?

The choice of scheduling algorithm can significantly affect system performance, including CPU utilization, turnaround time, waiting time, and response time. Different algorithms are suited for different types of workloads.