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PI77884: LARGE COMPILE TIME INCREASE DUE TO EXCESSIVE MEMORY ALLOCATION ABOVE-THE-LINE AT ALL OPT LEVELS

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Compile time may increase tremendously due to excessive memory
    allocation above-the-line at all OPT levels.  This large
    allocation can be seen in the IEF032I step statistic message
    in the ATB- REAL and VIRT- ALLOC fields.
    
    ATB- REAL:  2789768K  SLOTS:               1141196K
    VIRT- ALLOC:    3863M SHRD:       0M
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users of Enterprise COBOL V6.1 compiling     *
    *                 large programs containing OCCURS N TIMES or  *
    *                 PERFORM N TIMES statements using compiler    *
    *                 options OPT(1) or OPT(2).                    *
    *                                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: Compile takes excessive time.           *
    *                                                              *
    ****************************************************************
    * RECOMMENDATION: Apply the provided PTF.                      *
    *                                                              *
    ****************************************************************
    Analysis of local live ranges was time consuming for very large
    programs.
    

Problem conclusion

  • Compiler was updated to perform selective live range analysis
    on locals for register allocation.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI77884

  • Reported component name

    ENT COBOL FOR Z

  • Reported component ID

    5655EC600

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-03-09

  • Closed date

    2017-04-25

  • 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:

    PI78210

Modules/Macros

  •    IGYQCBE
    

Fix information

  • Fixed component name

    ENT COBOL FOR Z

  • Fixed component ID

    5655EC600

Applicable component levels

  • R610 PSY UI46711

       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.

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Document Information

Modified date:
05 September 2024