Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Operating Systems CPU Scheduling Process Scheduling
Consider the following 3 processes with the length of the CPU burst time given in milliseconds :
| Process | Arrival Time | Burst Time |
| P1 | 0 | 8 |
| P2 | 1 | 4 |
| P3 | 2 | 9 |
What is the average waiting time for these processes if they are scheduled using preemptive shortest job first scheduling algorithm?
1
5.6
2
2.66
3
4.66
4
6