Cumulative Response Time Distribution

The Cumulative Response Time Distribution is a graph showing the cumulative distribution of response times for the period of time defined for the run. Figure 5 shows an example of this graph. The y-axis (vertical) shows the percentage of responses in 2 percent increments from 0 to 100. The x-axis (horizontal) shows the response time values in even tenths of seconds using 50 increments. The first response time value used on the x-axis is the lowest response time truncated to a full second. For example, if the lowest response time is 2.36 seconds, the first response time value used on the x-axis is 2.2 seconds.

You can use the CGRAPH command to specify the increment value to be used on the x-axis (in tenths of seconds). If a CGRAPH number of 0 is specified, the increment value is determined by subtracting the lowest response time from the highest response time and dividing the difference by 50.

You can control when the cumulative graphs are printed by using the REPORT command and the REPORT operand on the VTAMAPPL, APPCLU, TCPIP, and TERM commands.