PI47151: EGL GENERATED COBOL PROGRAM PERFORMS POORLY IF THERE ARE A LARGE NUMBER OF EXCEPTIONS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• It is found that if a EGL Cobol application creates a large
  number of exceptions during its execution, the performance is
  poor, due to large number of garbage collections in the heap
  memory management.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: EGL COBOL RUNTIME USERS.                     *
  *                 PREVIOUSLY, DL/1 USERS HAD A LONGER          *
  *                 PATHLENGTH WHENPROCESSING STATUS             *
  *                 CODES THAT START WITH G.  WITH THIS APAR     *
  *                 THE EXCEPTION PROCESSING IS REDUCED FOR      *
  *                 STATUS CODES THAT START WITH G.              *
  ****************************************************************
  * PROBLEM DESCRIPTION: MORE PROCESSING WAS OCCURRING DURING AN *
  *                      EXCEPTION FOR DL/1 USERS. STATUS CODES  *
  *                      THAT BEGIN WITH G CAN BE CONSIDERED     *
  *                      NORMAL PROCESSING AND THE GETMAINS      *
  *                      DONE FOR THE REASON STRINGS CAN BE      *
  *                      IGNORED, LIKE WE DO FOR SQL CODE 100.   *
  *                      THIS MAKES THE PROCESSING MUCH FASTER.  *
  *                      IN ADDITION, THIS FIX ALSO FIXES THE    *
  *                      PROBLEM WHERE THE LENGTH OF THE GETMAIN *
  *                      WAS LARGER THAN NECESSARY, CAUSING      *
  *                      MORE GARBAGE COLLECTIONS.               *
  ****************************************************************
  * RECOMMENDATION: APPLY THIS MAINTENANCE.                      *
  ****************************************************************
  MORE PROCESSING WAS OCCURRING DURING AN EXCEPTION FOR DL/1
  USERS. STATUS CODES THAT BEGIN WITH G CAN BE CONSIDERED
  NORMAL PROCESSING AND THE GETMAINS DONE FOR THE REASON
  STRINGS CAN BE IGNORED, LIKE WE DO FOR SQL CODE 100.
  THIS MAKES THE PROCESSING MUCH FASTER. IN ADDITION, THIS
  FIX ALSO FIXES THE PROBLEM WHERE THE LENGTH OF THE GETMAIN
  WAS LARGER THAN NECESSARY, CAUSING MORE GARBAGE
  COLLECTIONS.
  

Problem conclusion

• No changes to the customer. Improved performance possible.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  PI47156

Modules/Macros

• ELACOMB  ELACOMC
  

Fix information

• Fixed component name

  RATL COBOL RT Z

• Fixed component ID

  5655R2900

Applicable component levels

• R601 PSY UI33732

     UP15/12/15 P F512

Fix is available

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