IZ91967: 64K KERNEL HEAP CAUSES PAGING WHEN RAM IS OTHERWISE AVAILABLE APPLIES TO AIX 6100-06

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • System performance degradation occurs when RAM exceeds
    about 85% usage for AVM. The system pages when RAM
    exists.
    

Local fix

  • Disable multiple page size support
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:
    * Users of the 6100-06 Technology Level with the bos.mp64
    * fileset below the 6.1.6.4 level.
    ****************************************************************
    * PROBLEM DESCRIPTION:
    * System performance degradation occurs when RAM exceed about
    * 85% usage for AVM.
    * The system pages when RAM exists.
    ****************************************************************
    * RECOMMENDATION:
    * Install APAR IZ91967.
    *
    * Prior to APAR availability and interim fix is available at:
    * ftp://public.dhe.ibm.com/aix/efixes/iz91967/
    ****************************************************************
    

Problem conclusion

  • Appropriate code changes has been done to avoid unnecessary
    paging.sary
    paging.
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    IZ91967

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Submitted date

    2011-01-09

  • Closed date

    2011-02-07

  • Last modified date

    2011-03-23

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

    IZ87037

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

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U838332

       UP11/03/21 I 1000

PTF to Fileset Mapping



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Document information


More support for:

AIX Enterprise Edition

Software version:

610

Operating system(s):

AIX

Reference #:

IZ91967

Modified date:

2011-03-23

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