IBM Support

IV50068: OPTION TO INCREASE THE LIMIT IMPOSED ON TOTAL CODE CACHE SPACE

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APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
.
Stack Trace: N/A
.

Local fix

  • 



Problem summary


    

  • If the JVM application is very large, the JIT may try to compile
very many methods exceeding the limit imposed on total code
cache space. When that happens the compilation activity stops
and methods that couldn't be fit into the code caches continue
to run as interpreted. Depending on how many many are forced to
continue execution as interpreted and how often they are
executed performance can suffer to various degrees.

    



Problem conclusion


    

  • This defect will be fixed in:
7.0.0 SR6
6.0.1 SR7
6.0.0 SR15
.
The JVM provided an option to allow users to increase the limit
imposed on total code cache space: -Xcodecachetotal<NNN>

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV50068
    • 

  • Reported component name
    JIT
    • 

  • Reported component ID
    620700124
    • 

  • Reported release
    260
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2013-09-26
    • 

  • Closed date
    2013-09-26
    • 

  • Last modified date
    2013-09-26
    • 





    

  • 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
    JIT
    • 

  • Fixed component ID
    620700124
    • 



Applicable component levels


    

  • R260  PSY
       UP
    • 

  • R600  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            26 September 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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