Q51

Consider the following reservation table for a pipeline having three stages $S_1, S_2 \text{ and } S_3$.

$$\begin{array}{|l|l|} \hline \textbf{Time} \rightarrow \\\hline & \text{1}& \text{2} & \text{$3$} & \text{$4$} & \text{$5$} \\\hline \textbf{$S _1$} & \text{$X$} & & & & \text{$X$}\\\hline \textbf{$S _2$} & & \text{$X$} & & \text{$X$}\\\hline \textbf{$S _3$} & & & \text{$X$} & \\\hline \end{array}$$

The minimum average latency (MAL) is ______