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Statistics on Component State

The queues and servers are two component types for which performance measures are typically of interest. For queues you want to know the distribution on queue length, and for servers you want to know about server utilization. Other performance measures that may be of interest are time in the queue and time in service. These are discussed in the section "Statistics on Transaction State".

There are two ways you can obtain statistics on queue length and server utilization. One way uses the chart components and the other uses the Simulation control panel shown in Figure 9.3. When the data collection status is "On" in this control panel, all changes of state are recorded to a SAS data set. These data can be summarized through the Simulation Control Panel and through the Analyze button.

Queue Length

Server Utilization

DATA Step Program for Extracting Information