GATE Computer Science (CS) 2020 Solved Papers

Consider the following set of processes, assumed to have arrived at time 0. Consider the CPU scheduling algorithms Shortest Job First (SJF) and Round Robin (RR). For RR, assume that the processes are scheduled in the order ${\mathit{P}}_1,{\mathit{P}}_2,{\mathit{P}}_3,{\mathit{P}}_4$

Processes	${\mathit{P}}_1$	${\mathit{P}}_2$	${\mathit{P}}_3$	${\mathit{P}}_4$
Burst time (in ms)	8	7	2	4

If the time quantum for $\mathit{R}\mathit{R}$ is $4\mathit{m}\mathit{s}$, then the absolute value of the difference between the average turnaround times (in ms) of SJF and RR (round off to 2 decimal places) is .................