Analyzing transaction response time

You can analyze the CICS® response time for a transaction ID and display the output as a pie chart or a timeline chart. You can analyze the CICS response time for multiple transaction IDs and display the output as a bar chart.

Pie chart

The CICS Response time pie chart is displayed in the Transaction detail view and shows an analysis summary for a specific transaction ID over a time interval.

To display a CICS Response time pie chart, see Pie charts and select the CICS Response time thumbnail.

This chart shows the transaction response time divided into User Dispatch time and Suspend time. User Dispatch time is divided further into User CPU time with an analysis of the CICS Dispatcher-managed Task control Blocks (TCBs) that the transaction used. Suspend time also shows the Dispatch wait time that the transaction incurred and the CICS TCB mode when the wait occurred.

Transaction detail view showing the CICS response time pie chart and details
The CICS Response time analysis displays the following information:
  • A summary of the Transaction ID in the time period chosen, including the following information:
    • The number of transactions
    • The average response time
    • The average user dispatch time
    • The average suspend time per transaction
  • A pie chart with the following two sectors:
    • User Dispatch time. This time is broken down further into User CPU time.
    • Suspend time. This time is broken down further into Dispatch wait time.

    If the User CPU time or Dispatch wait time has a value to show, the pie chart shows the relevant subsection in the sector. You can click an area in the pie chart to highlight the relevant entry in the table.

    You can use the check boxes to hide irrelevant data from the table.

  • A table that shows the types of User CPU time in the User Dispatch time and the types of Dispatch wait time in the Suspend time, and the following values for each one:
    • Average time
    • Average count
    • The percentage of the total response time
    • The percentage for each time relative to the immediate parent.
    For entries that are shown in the pie chart, you can click an entry in the table to highlight the relevant area in the pie chart.
    User CPU time is broken down further into the following times:
    • QR TCB CPU time.
    • Miscellaneous TCB CPU time. This time is broken down further into RO CPU time.
    • CICS Key 8 TCB CPU time. This time is broken down further into J8, L8, S8, T8, and X8 CPU time.
    • CICS Key 9 TCB CPU time. This time is broken down further into J9, L9, and X9 CPU time.
    Dispatch wait time is broken down further into the following times:
    • QR TCB mode delay time
    • RO TCB mode delay time
    • SO TCB mode delay time
    • Other CICS TCB mode dispatch wait time
Note: The values displayed in the table are the actual values from the CICS PA host database or the CSV file. Because of rounding errors when the data was captured, the sum of the detail might not match the total value. Also, the percentage figures might not total 100% because of rounding errors.

Bar charts

The CICS Response time bar chart shows summary information for multiple transaction IDs. The transaction IDs are displayed in the order in which they are shown in the selection.

To display a CICS Response time bar chart, see Bar charts and select the CICS Response time option.

CICS Response time bar chart for a number of transaction IDs.

The CICS Response time bar chart displays the following information:
  • The view title shows the source of the data and the analysis type.
  • The information line shows the selection criteria for the data the records were selected from, for example, APPLID and time period.
  • Legend icon Legend icon. Click this icon to display the chart legend for the segments in the current chart.
  • A stack of bars for each selected transaction ID. Each bar in a stack has one or more segments to represent a different dispatch or suspend time field. You can hover over a sector to show the average time value for the relevant time field.

To change the time scale on the vertical axis of the chart and show more detail, you can use the zoom bar.

To analyze a transaction ID further, right-click a bar, then use the menu options to select a performance summary (pie chart) or timeline analysis.

Timeline charts

A timeline chart displays all instances of a transaction ID in the selected APPLID across either all the data, or the data in a specified period.

To display a CICS Response time timeline chart, see Timeline charts and select the CICS Response time option.

CICS Response time timeline chart for all instances of Transaction ID CRTP in APPLID IYCYZC20.
The CICS Response time timeline chart shows the following information:
  • The view title shows the source of the data and the analysis type.
  • The information line shows the selection criteria for the data the records were selected from, for example, APPLID, transaction ID, and time period.
  • Legend icon Legend icon. Click this icon to display the chart legend for the segments in the current chart.
  • Stacked bars consist of one bar for each instance of the selected Transaction ID in the APPLID. Each bar in a stack consists of one or more segments to represent different time fields. You can hover over a segment to show the average time value for the time field.

To change the time scale on the vertical axis of the chart and show more detail, you can use the zoom bar.

To analyze an instance of a transaction further, right-click a bar, then use the menu options to select a performance summary (pie chart) or timeline analysis.