I/O Management
I/O Scheduling Algorithms
Interactive simulation of I/O request scheduling algorithms with disk head movement visualization and performance analysis.
I/O Scheduling Algorithm
Disk Configuration
I/O Request Queue
ID
Track
Arrival
Process
Action
Ready to Simulate
Configure your I/O requests and algorithm settings, then click "Run Simulation" to see the scheduling process.
Algorithm Information
Current Algorithm: First Come First Serve (FCFS)
I/O requests processed in arrival order
Advantages:
- Simple implementation
- Fair for all requests
- No starvation
Disadvantages:
- High seek time
- Poor throughput
- No optimization
University Exam Tips
- Draw disk track diagrams showing head movement
- Calculate total seek time step by step
- Show the order of request processing
- Compare algorithms based on seek time and fairness
- Explain the concept of starvation
- Discuss real-world hard disk implementations
Performance Metrics:
• Seek Time: Time to move head to target track
• Rotational Latency: Time for sector to reach head
• Transfer Time: Time to read/write data
• Total Access Time = Seek + Rotational + Transfer