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PK48575: CICS STATISTICS: 'TOTAL CPU TIME/TCB' IS GREATER THAN 'ADDRESS S PACE CPU TIME'

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APAR status

  • Closed as program error.

Error description

  • The CICS Statistic Summary Report using DFHSTUP shows the total
address space cpu time is less than the total cpu time of all
the TCBs.  The Address CPU Time was being obtained from ASCBEJST
and should be greater than the total CPU consumed by all TCBs.
Using CICS Fault Analyzer, adding all the TTIME values for each
TCB showed:              Total TCB CPU = 00000005 DD92AE60
and the dump showed:     ASCBEJST      = 00000005 CC9B1960
So it appeared MVS was passing CICS an erroneous Address Space
CPU value via ASCBEJST.  However, ASCBEJST is not the total CPU
for the address space.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED: All.                                         *
****************************************************************
* PROBLEM DESCRIPTION: The CICS Statistics Summary Report      *
*                      using DFHSTUP may show the total        *
*                      address space CPU time is less than the *
*                      total CPU time of all the TCBs.         *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
CICS Statistics reports may show the total address space CPU
time to be less than the total CPU time for all TCBs when any
type of preemptable SRB is executing within  this address space
or the transaction is the subject of a multi-system work load
manager enclave. CICS obtains the Address Space CPU time from
the ASCBEJST field, but this does not include the CPU time for
any preemptable SRBs whose CPU time is in field ASSBPHTM.
ASSBPHTM is not currently included in the CICS address space CPU
calculation.

Keyword: DSGEJST STAT WLM DFH0STAT

    



Problem conclusion


    

  • DFHDSDM, DFHDSST and DFH$STAS have been changed to include
ASSBPHTM in their calculations of address space CPU time.

    



Temporary fix


    

  • FIX AVAILABLE BY PTF ONLY

    



Comments


    

  • 



APAR Information




    

  • APAR number
    PK48575
    • 

  • Reported component name
    CICSTS V3 Z/OS
    • 

  • Reported component ID
    5655M1500
    • 

  • Reported release
    500
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2007-07-09
    • 

  • Closed date
    2007-10-11
    • 

  • Last modified date
    2007-11-02
    • 





    

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

    
PK39134
    

    • 

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

    
UK30124
    

    • 



Modules/Macros


    

  •    DFH$STAS DFHDSDM  DFHDSST

    



Fix information


    

  • Fixed component name
    CICSTS V3 Z/OS
    • 

  • Fixed component ID
    5655M1500
    • 



Applicable component levels


    

  • R500  PSY  UK30124
       UP07/10/24  P  F710
    • 



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:
            

            02 November 2007
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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