IBM Support

PI79257: INCREASED RUNTIME CPU TIME FOR COB V6 DB2 PROGRAM WITH USAGE OF NATIONAL-OF and DISPLAY-OF INTRINSIC FUNCTIONS.

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Increased runtime CPU time for COB V6 DB2 program with usage of
    NATIONAL-OF and DISPLAY-OF intrinsic functions.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: User of Enterprise COBOL v5+ compiling and   *
    *                 running programs that have invocations of    *
    *                 NATIONAL-OF and DISPLAY-OF intrinsic         *
    *                 functions.                                   *
    *                                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: Runtime performance: The overhead of    *
    *                      NATIONAL-OF and DISPLAY-OF is higher    *
    *                      than expected, result in a degradation  *
    *                      of execution performance in COBOL V5+   *
    *                      compared to COBOL V4 and earlier.       *
    *                                                              *
    ****************************************************************
    * RECOMMENDATION: Apply the provided PTF.                      *
    *                                                              *
    ****************************************************************
    The runtime routines that support the NATIONAL-OF and
    DISPLAY-OF intrinsic function used more CPU cycles for
    initiation of parameter for the underlying z/OS Unicode
    Service, which has been tuned up.
    

Problem conclusion

  • The runtime routines that support the NATIONAL-OF and
    DISPLAY-OF intrinsic function have been tuned up for
    performance.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI79257

  • Reported component name

    ENT COBOL FOR Z

  • Reported component ID

    5655EC600

  • Reported release

    790

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-04-03

  • Closed date

    2017-04-20

  • Last modified date

    2017-05-01

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

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

Modules/Macros

  •    IGZXLPKA
    

Fix information

  • Fixed component name

    LE ENT COBOL LI

  • Fixed component ID

    568819812

Applicable component levels

  • R7A0 PSY UI46585

       UP17/04/29 P F704

  • R790 PSY UI46586

       UP17/04/29 P F704

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SS6SG3","label":"Enterprise COBOL for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"790","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]

Document Information

Modified date:
12 December 2023