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PM94771: EXCESSIVE CPU USAGE WHEN USING FM DSM (DATA SET COMPARE) FUNCTION

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APAR status

  • Closed as program error.

Error description

  • Performance degradation when using FM DSM (Data Set Compare)
function with a large file and a copybook.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED: All Data set Compare (DSM) users.            *
****************************************************************
* PROBLEM DESCRIPTION: When using data set compare with a      *
*                      copybook with dimensioned fields the    *
*                      CPU usage may be excessive.             *
****************************************************************
* RECOMMENDATION: Apply the provided PTF.                      *
****************************************************************

    



Problem conclusion


    

  • File Manager has been changed to reduce the CPU usage when
processing dimensioned fields.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PM94771
    • 

  • Reported component name
    FILE MANAGER Z/
    • 

  • Reported component ID
    5655W6800
    • 

  • Reported release
    C10
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2013-08-08
    • 

  • Closed date
    2013-11-05
    • 

  • Last modified date
    2013-12-02
    • 





    

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

    • 

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

    • 



Modules/Macros


    

  • FMN0LVL

    



Fix information


    

  • Fixed component name
    FILE MANAGER Z/
    • 

  • Fixed component ID
    5655W6800
    • 



Applicable component levels


    

  • RC10  PSY  UI12211
       UP13/11/08  P  F311
    • 



Fix is available


    

  • Select the PTF appropriate for your component level.
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              [{"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":"C10","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSXJAV","label":"File Manager for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"C10","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            02 December 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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