Round-Robin (RR) Scheduling
 
 
Quantum size: determines response time to interactive requests
- Very large quantum size
- Processes run for long periods
 - Degenerates to FIFO
 
 - Very small quantum size
- System spends more time context switching than running processes
 
 - Middle-ground
- Long enough for interactive processes to issue I/O request
 - Batch processes still get majority of processor time