First come, first served job arrival runtime start end turnaround response --- ------- ------- ----- --- ---------- -------- A 0 12 0 12 12 0 B 0 8 12 20 20 12 C 0 6 20 26 26 20 D 0 6 26 32 32 26 E 0 10 32 42 42 32 F 2 2 42 44 42 40 Average turnaround time = 29.00 Average response time = 21.67 Shortest job first job arrival runtime start end turnaround response --- ------- ------- ----- --- ---------- -------- A 0 12 32 44 44 32 B 0 8 14 22 22 14 C 0 6 0 6 6 0 D 0 6 8 14 14 8 E 0 10 22 32 32 22 F 2 2 6 8 6 4 Average turnaround time = 20.67 Average response time = 13.33 Round robin, time slice = 1 job arrival runtime start end turnaround response --- ------- ------- ----- --- ---------- -------- A 0 12 0 44 44 0 B 0 8 1 37 37 1 C 0 6 2 30 30 2 D 0 6 3 31 31 3 E 0 10 4 42 42 4 F 2 2 7 14 12 5 Average turnaround time = 32.67 Average response time = 2.50 Round robin, time slice = 4 job arrival runtime start end turnaround response --- ------- ------- ----- --- ---------- -------- A 0 12 0 42 42 0 B 0 8 4 30 30 4 C 0 6 8 32 32 8 D 0 6 12 34 34 12 E 0 10 16 44 44 16 F 2 2 24 26 24 22 Average turnaround time = 34.33 Average response time = 10.33