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PH69115: CONSIDERABLE CPU INCREASE FROM COBOL V6.3 TO COBOL V6.4/V6.5 IN A MOVE STATEMENT

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Programs compiled with Enterprise COBOL V6.4/V6.5 that contain a
    large number of MOVE statements converting data from USAGE
    DISPLAY fields to numeric edited fields have worse runtime
    performance than Enterprise COBOL V6.3. The compiler generated
    inefficient instructions when converting from a USAGE DISPLAY to
    a Numeric Edited, resulting in slower performance.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users of Enterprise COBOL 6.5 compiling      *
    *                 programs that contain a large number of      *
    *                 MOVE statements converting data from USAGE   *
    *                 DISPLAY fields to numeric edited fields.     *
    ****************************************************************
    * PROBLEM DESCRIPTION: Program may have worse runtime          *
    *                      performance than Enterprise COBOL 6.3   *
    ****************************************************************
    * RECOMMENDATION: Apply the provided PTF                       *
    ****************************************************************
    the compiler generated inefficient instructions when converting
    from a USAGE DISPLAY to a Numeric Edited, resulting in slower
    performance.
    

Problem conclusion

  • The compiler was updated to produce optimized instructions for
    above conversion when compiled with the NOINVDATA option.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH69115

  • Reported component name

    ENT COBOL FOR Z

  • Reported component ID

    5655EC600

  • Reported release

    650

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2025-11-24

  • Closed date

    2025-11-25

  • Last modified date

    2026-01-02

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

    PH68453

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

Modules/Macros

  • IGY8RWTU IGYCASMB IGYCCBE  IGYCCCRT IGYCCICS IGYCCSRV IGYCDGEN
    IGYCDIAG IGYCDMAP IGYCEN$0 IGYCEN$1 IGYCEN$2 IGYCEN$3 IGYCEN$4
    IGYCEN$5 IGYCEN$8 IGYCEN$D IGYCEN$R IGYCFGEN IGYCFREE IGYCINIT
    IGYCJA$0 IGYCJA$1 IGYCJA$2 IGYCJA$3 IGYCJA$4 IGYCJA$5 IGYCJA$8
    IGYCJA$D IGYCJA$R IGYCJBLD IGYCJGEN IGYCLIBR IGYCLSTR IGYCLVL0
    IGYCLVL1 IGYCLVL2 IGYCLVL3 IGYCLVL8 IGYCMALL IGYCOPI  IGYCOPT
    IGYCOSCN IGYCPGEN IGYCRCTL IGYCRDPR IGYCRDSC IGYCREAL IGYCRWT
    IGYCSCAN IGYCSIMD IGYCUE$0 IGYCUE$1 IGYCUE$2 IGYCUE$3 IGYCUE$4
    IGYCUE$5 IGYCUE$8 IGYCUE$D IGYCUE$R IGYCXREF IGYDRV   IGYEQCWI
    IGYMSGE  IGYMSGK  IGYMSGT  IGYQCBE  IGYQSPLT IGYZQEN6 IGYZQENU
    IGYZQJP6 IGYZQJPN
    

Fix information

  • Fixed component name

    ENT COBOL FOR Z

  • Fixed component ID

    5655EC600

Applicable component levels

  • R650 PSY UO05951

       UP25/12/03 P F512

  • R651 PSY UO05952

       UP25/12/03 P F512

  • R652 PSY UO05953

       UP25/12/03 P F512

  • R65H PSY UO05954

       UP25/12/03 P F512

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":"BU048","label":"IBM Software"},"Product":{"code":"SS6SG3","label":"Enterprise COBOL for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.5","Line of Business":{"code":"LOB70","label":"Z TPS"}}]

Document Information

Modified date:
02 January 2026