IBM Support

PI49758: HIGH CPU DUE TO SUBOPTIMAL HIBERNATE FLUSH MODE

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APAR status

  • Closed as program error.

Error description

  • You will see high CPU usage when the Hibernate action executes
unnecessary flushes before reads.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:                                              *
* All                                                          *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* Performance problems with several GET requests               *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************

    



Problem conclusion


    

  • Fixed in 6.2.1.0

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PI49758
    • 

  • Reported component name
    UC DEPLOY
    • 

  • Reported component ID
    5725M5400
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2015-10-01
    • 

  • Closed date
    2016-05-04
    • 

  • Last modified date
    2016-05-04
    • 





    

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

    • 

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

    • 



Fix information


    

  • Fixed component name
    UC DEPLOY
    • 

  • Fixed component ID
    5725M5400
    • 



Applicable component levels


    

  • R600  PSN
       UP
    • 

  • R600  PSY
       UP
    • 

  • R601  PSN
       UP
    • 

  • R601  PSY
       UP
    • 

  • R610  PSN
       UP
    • 

  • R610  PSY
       UP
    • 

  • R611  PSN
       UP
    • 

  • R611  PSY
       UP
    • 

  • R612  PSN
       UP
    • 

  • R612  PSY
       UP
    • 

  • R613  PSN
       UP
    • 

  • R613  PSY
       UP
    • 

  • R620  PSN
       UP
    • 

  • R620  PSY
       UP
    • 

  • R621  PSN
       UP
    • 

  • R621  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            04 May 2016
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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