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IZ45350: UNALIGNED DATA ACCESS IN BIN SORT CAN HAVE PERFORMANCE IMPACT ON HP PA-RISC ARCHITECTURE.

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APAR status

  • Closed as program error.

Error description

  • Unaligned data access in Bin Sort can have performance impact on
    HP PA-RISC Architecture due to the use of a SIGBUS signal
    handler to align the data.
    
    The function name that is generating the unaligned access is
    bsortTransfmVarCharNextTime.
    

Local fix

Problem summary

  • Unaligned data access in Bin Sort can have performance impact on
    HP PA-RISC Architecture due to the use of a SIGBUS signal
    handler to align the data.
    
    The function name that is generating the unaligned access is
    bsortTransfmVarCharNextTime.
    

Problem conclusion

  • First fixed in DB2 V9.1 FP 8
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ45350

  • Reported component name

    DB2 UDB ESE HP-

  • Reported component ID

    5765F4103

  • Reported release

    910

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-03-06

  • Closed date

    2009-10-08

  • Last modified date

    2009-10-08

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

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

    IZ45357

Fix information

  • Fixed component name

    DB2 UDB ESE HP-

  • Fixed component ID

    5765F4103

Applicable component levels

  • R910 PSY

       UP

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Document Information

Modified date:
08 October 2009