Deploying Your Product › Improve Initial Entry Performance

Improve Initial Entry Performance

Enter CA PanAPT by executing the APT CLIST that is delivered with the CA PanAPT system. This CLIST allocates the CA PanAPT system libraries (with the installation defaults specified in the CLIST) and passes control to APCS1000, the main online CA PanAPT module. When you exit CA PanAPT, the CLIST will deallocate the system libraries. Using this APT CLIST lets you switch to an alternate CA PanAPT system (if you are using more than one) when you enter CA PanAPT.

You can speed up the performance of entering CA PanAPT (but also limit your flexibility of being able to switch CA PanAPT systems on demand) by making the following changes:

1. Change the TSO logon PROC or TSO CLIST you use to allocate the ISPF and CA PanAPT software libraries to also allocate the CA PanAPT VSAM system libraries. The files you must allocate are:

   //APTDB     DD DISP=SHR,DSN=<VPFX>.APTDB	
   //APTMODEL  DD DISP=SHR,DSN=<SPFX>.CABYDATA
   

2. Change the ISPF panel you use to select the CLIST APT to select the program APCS1000 as follows:
   • In the )PROC section, ensure that variable &ZTRAIL is set to .TRAIL before variable &ZSEL is set. In many cases, it is set after variable &ZSEL is set. If this is the case, move the assignment statement. Panel APIPPRIM shows the proper way if you are in doubt.
   • Change the entry for option A in the &ZSEL assignment to:

     A,'PGM(APCS1000) NEWAPPL(APT) PARM(&ZTRAIL) NOCHECK'