Change Application Profile Settings (VTAM)
When you play back a script with Domain Traveler, Performance Test for VTAM uses the following parameter values to determine how long to wait before sending the next input to the application:
- XTRMUTIM (keyboard unlock time limit)
- XTRMKTIM (premature keyboard unlock time limit)
- XTRMTIME (time limit for secondary writes)
Every input and output employs the wait times established by these parameters. If the application does not respond in the amount of time specified, Performance Test for VTAM times out and produces error messages. Your installer can adjust these parameters by editing member HSCMnnnn from the common PARMLIB. See the Performance Test Installation-and-Configuration-Guide for more information.
Application profiling alleviates the need to adjust these parameters. It synchronizes script playback with application responses to ensure successful and efficient playback. It collects response-time information to determine how long to wait for the next response. If the application does not respond within the expected time frame, Performance Test for VTAM automatically increases the wait time up to the maximum wait value specified on this screen. As Performance Test for VTAM gathers more data, wait times typically decrease.
On the Performance Test for VTAM Main Menu, select option 1 Domain Traveler. Type a slash (/) next to the Change session options field and press Enter. On the Session Options screen, type a slash (/) next to the Appl Profiling field and press Enter. The Application Profile Settings screen appears.
Application Profile Settings screen------------------------- Application Profile Settings ------------------------
Command ===>
Use Application Profiling . N Y=Yes,N=No
Standard Wait. . . . . . . 0 0 0 ==>Use default values
ss hh ss=seconds, hh=hundredths of seconds
Maximum Wait. . . . . . . . 0 0 0 ==>Use default values
sss hh sss=seconds, hh=hundredths of seconds
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If Use Application Profiling is set to "Y"
the selections below will be ignored
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IMS Application . . . . . . Y
Y = Process special "IMS" datastreams
N = No special processes used
KB Restore Action . . . . . 1
1 = Allow application KB restore
2 = Override- Specify the desired options. See the online help for complete field descriptions.
- Type Y or N for Use Application Profiling to specify whether to use application profiling. N is the default. Short scripts or applications with different types of data streams may take longer to play back when application profiling is enabled.
- Standard Wait specifies the “slow start” value to be used in Application Profiling. This value estimates application response time until sufficient data has been gathered to calculate response time. If no value is entered, Performance Test for VTAM defaults to 0.01 seconds. Standard Wait values are used only when Application Profiling is enabled.
- Maximum Wait specifies the amount of time for Performance Test for VTAM to wait until it assumes the application has stalled. If Performance Test for VTAM does not receive a response from the application in this interval, it terminates the application session. If no value is entered, the application stall timer defaults to 75 seconds. Maximum wait values are used only when Application Profiling is enabled.
- Type Y or N for IMS Application. Y examines special IMS-like datastreams and uses those datastreams as an indication of more data coming from the application. This field is valid only if Application Profiling is disabled. N specifies that no special processes will be used.
- Type 1 or 2 for KB Restore Action.
- 1 tells Performance Test for VTAM to unlock the keyboard at the Domain Destination’s request. 1 is the default.
- 2 tells Performance Test for VTAM to unlock the keyboard when the Domain Destination finishes sending data.
- KB Restore Action is used only if IMS Application is set to N and Application Profiling is disabled.
- Press END to continue. You return to the Session Options screen.