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PI61559: HIGH CPU IN OMPE SERVER STC WHEN RUNNING NEAR TERM HISTORY

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APAR status

  • Closed as program error.

Error description

  • Customer is seeing consistent high CPU across the board (not CPU
spikes)

Inspect shows that TCB KO2SSRVB is the heavy hitter. With in
this TCB LMODs CSRCE and KO2PCTOF will be the heavy hitters.

Search words:
HIGH CPU utilization increased CPU usage

This fix is included in the V540 base code

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED: OMEGAMON XE for DB2 PE/DB2PM                 *
*                 users of component                           *
*                 - NTH - Near Term History                    *
****************************************************************
* PROBLEM DESCRIPTION: CPU usage of the collector address      *
*                      space is higher than expected when      *
*                      using Near Term History.                *
****************************************************************
* RECOMMENDATION: Apply this PTF.                              *
****************************************************************
PROBLEM SUMMARY:
Newly-obtained storage is cleared and key comparisons are done
with less-efficient instructions.

PROBLEM CONCLUSION:
Use different instructions to clear storage and compare keys.

KEYWORDS:
HIGH CPU USAGE COLLECTOR NEAR TERM HISTORY

    



Problem conclusion


    

  • Use different instructions to clear storage and compare keys.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PI61559
    • 

  • Reported component name
    OM XE DB2PE/PM
    • 

  • Reported component ID
    5655OPE00
    • 

  • Reported release
    520
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2016-04-27
    • 

  • Closed date
    2016-10-07
    • 

  • Last modified date
    2017-08-29
    • 





    

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

    • 

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

    
UI41496 UI41497 PI86309
    

    • 



Modules/Macros


    

  • KO2CCINB KO2DCS1B KO2DXS1A KO2DXS1K KO2DXS1S KO2HSVPB KO2OCINB
KO2ODINB KO2ONTSB KO2OTCCB KO2PCTOF KO2XCINB KO2ZZSL

    



Fix information


    

  • Fixed component name
    OM XE DB2PE/PM
    • 

  • Fixed component ID
    5655OPE00
    • 



Applicable component levels


    

  • R520  PSY  UI41496
       UP16/10/11  P  F610
    • 

  • R530  PSY  UI41497
       UP16/10/11  P  F610
    • 



Fix is available


    

  • Select the PTF appropriate for your component level.
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media is not available in all countries.
    








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSAV2B","label":"IBM Db2 Buffer Pool Analyzer for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.2.0","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}},{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCT4H5","label":"IBM Tivoli OMEGAMON XE for Db2 PE \/ PM \/ BPA"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.2.0","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            29 August 2017
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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