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PI56073: CPU CONSUMPTION IS HIGHER FOR COBOL V5 (USING OPT1|2) THAN COBOL V4 .

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APAR status

  • Closed as program error.

Error description

  • Increased run-time CPU usage in a program migrated from COBOL
V4.2 to COBOL V5.2

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED: Users of Enterprise COBOL V5.2 migrating     *
*                 from a pre-V5 compiler, compiling and        *
*                 running programs that were using the         *
*                 NUMPROC(MIG) compiler option in pre-V5.      *
*                                                              *
****************************************************************
* PROBLEM DESCRIPTION: Performance: Programs compiled with     *
*                      NUMPROC(NOPFD) using Enterprise COBOL   *
*                      V5 is slower than programs compiled     *
*                      with NUMPROC(MIG) using a pre           *
*                      Enterprise COBOL V5 compiler.           *
*                                                              *
****************************************************************
* RECOMMENDATION: Apply the provided PTF.                      *
****************************************************************
NUMPROC(MIG) does not require sign codes to be cleaned before
comparing two zoned decimal data items. NUMPROC(NOPFD) requires
sign codes to be cleaned.

    



Problem conclusion


    

  • A more efficient code sequence for cleaning sign codes during
comparisons was developed.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PI56073
    • 

  • Reported component name
    ENT COBOL FOR Z
    • 

  • Reported component ID
    5655W3200
    • 

  • Reported release
    520
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2016-01-26
    • 

  • Closed date
    2016-03-22
    • 

  • Last modified date
    2016-04-05
    • 





    

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

    • 

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

    • 



Modules/Macros


    

  •    IGYCBE

    



Fix information


    

  • Fixed component name
    ENT COBOL FOR Z
    • 

  • Fixed component ID
    5655W3200
    • 



Applicable component levels


    

  • R520  PSY  UI36448
       UP16/03/30  P  F603
    • 



Fix is available


    

  • Select the PTF appropriate for your component level.
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              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SS6SG3","label":"Enterprise COBOL for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"520","Edition":"","Line of Business":{"code":"LOB17","label":"Mainframe TPS"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"520","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            05 April 2016
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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