IBM Support

LI73627: HIGHER CPU CONSUMPTION AND REDUCED THROUGHPUT WHEN ACCESSING ROW S IN A COMPRESSED TABLE ON LINUX FOR SYSTEM P

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Due to a change in DB2 Version 9.5 Fixpack 1 on Linux for
    System P, higher CPU consumption and reduced throughput may
    occur when accessing rows in a compressed table. This would be
    most noticeable on a select where lots of rows are read but few
    returned.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    DB2 Servers on Linux for System P
    ****************************************************************
    PROBLEM DESCRIPTION:
    A small performance degradation may be noticed when accessing
    row compressed data from a table.
    ****************************************************************
    RECOMMENDATION:
    Upgrade to DB2 Version 9.5 Fixpack 2 or later
    ****************************************************************
    

Problem conclusion

  • First fixed in DB2 Version 9.5 Fixpack 2
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI73627

  • Reported component name

    DB2 UDE ESE LIN

  • Reported component ID

    5765F4104

  • Reported release

    950

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-07-27

  • Closed date

    2008-09-20

  • Last modified date

    2008-09-20

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

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

    LI73668

Fix information

  • Fixed component name

    DB2 UDE ESE LIN

  • Fixed component ID

    5765F4104

Applicable component levels

  • R950 PSN

       UP

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Document Information

Modified date:
20 September 2008