Analyzing Monitor Data › Interactive Analysis Option 2 - DelayView

Interactive Analysis Option 2 - DelayView

CA Mainframe Application Tuner divides program delays into delay categories. The DelayView option shows the percentage of the monitored period that the program was in a wait state for each category. From the DelayView panel, you can further investigate a delay, by using the Delay Locations, Delayed Resources, Delay Distribution, and Data Set Details panels.

CA Mainframe Application Tuner uses the term delay to encompass all aspects of elapsed time, including time that the program was using CPU.

CA MAT -------------------------- DelayView ----------------- Row 1 to 5 of 5
COMMAND ===>                                                  SCROLL ===> CSR 
                                                                               
Primary commands: DETail on/off           Module: *          Profile: DB2SAMP 
                  ADDHelp                  Csect: *          Options: NORMAL  
                                          Offset: *           Detail: OFF     
   Line commands:  A - Address                                                 
                   S - Distribution                                            
                                                                               
LC Major category       Actv%  Wait%  Totl%  Visual                            
   ____________________ ______ ______ ______ __________                        
-------------------------------------------------------------------------------
__ Voluntary Wait         0.00  39.59  39.59 =========>                        
__ CICS File Ctl Delay    0.00  38.37  38.37 ========>                        
__ Program Active        15.92   0.00  15.92 ===>                              
__ Data Delay             1.63   2.45   4.08 >                                 
__ System Active          2.04   0.00   2.04                                 

The available commands for DelayView are described next.

DETail on/off

ON displays minor delay reasons; OFF summarizes minor delay reasons by major categories.

ADDHelp

Invokes the content-sensitive Help application to update or create a Help entry for the selected content.

A

Address - shows all code locations associated with this type of delay.

Displays the Delay Locations panel (see Display Delay Locations).

S

Distribution - shows the tasks or transactions that have this type of delay.

Displays the Delay Distribution application (see Display Delay Distribution) or the CA IDMS Delays application (see Display CA IDMS Delays).

The information that displays on the DelayView panel is described next.

Module

Asterisk (*) means all modules in the sample set were considered.

For more information about displaying information about a particular module, see Display Delay Locations.

CSECT

Asterisk (*) means all the CSECTs in the sample set were considered.

For more information about displaying information about a particular CSECT, see Display Delay Locations.

Offset

Asterisk (*) means all the offsets in the sample set were considered.

For more information about displaying information about a particular offset, see Display Delay Locations.

Profile

Name of the profile that you specified when you created the monitor definition.

Options

Indicates the type of analysis in effect: NORMAL, ALL, ACTIVE, or WAIT.

An asterisk (*) following the value indicates that tasks or transactions have been selected for analysis. Place the cursor on the Options field value and press Enter to display a pop-up panel listing the selected tasks/transactions.

Detail

Indicates the display mode of ON or OFF for delay details.

Major category

Six major categories of delays are shown here:

• Program Active - The application or a called support routine is using CPU.
• Data Delay - The application is accessing a file.
• Voluntary Wait - The application is voluntarily waiting for resources.
• File Mgmt Delay - The application is preparing a file for processing.
• System Active - The application is using operating system functions such as storage administration or system security.
• Other Delays - The application is delayed by a category unknown to CA Mainframe Application Tuner.

See the chapter, "Tuning Your Applications" for a complete list of categories.

Minor category

More detailed delay category classification.

This field is blank if DETAIL OFF is specified. To view the minor delay categories, use the primary command DETAIL ON.

Actv%

Percentage of the monitored period that CA Mainframe Application Tuner detected CPU usage for this category of delay.

Wait%

Percentage of the monitored period that CA Mainframe Application Tuner detected that the program was in a wait state for this category of delay.

Totl%

Summation of the Actv% and Wait% fields.

Visual

Graphical representation of the Totl% field.