An operating system uses Shortest Remaining Time first (SRT) process scheduling algorithm. Consider the arrival times and execution times for the following processes:
|
Process |
Execution
time |
Arrival
time |
|
P1 |
20 |
0 |
|
P2 |
25 |
15 |
|
P3 |
10 |
30 |
|
P4 |
15 |
45 |
What is the total waiting time for process P2?
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