IZ60343: MSYNC ON ANONYMOUS REGIONS CAUSES IO TO PAGING DEVICES APPLIES TO AIX 5300-09

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

  • Using msync() on an anonymous memory region causes
    page out activity.
    

Local fix

Problem summary

  • A noticeable performance degradation when starting Java 5
    or Java 6 programs.
    

Problem conclusion

  • Disclaim invalidated pages instead of writing them to paging
    space.
    

Temporary fix

Comments

  • Opened against wrong component.
    

APAR Information

  • APAR number

    IZ60343

  • Reported component name

    AIX 5.3

  • Reported component ID

    5765G0300

  • Reported release

    530

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2009-09-10

  • Closed date

    2009-09-10

  • Last modified date

    2010-05-12

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

    IZ42991

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

Fix information

  • Fixed component name

    AIX 5.3

  • Fixed component ID

    5765G0300

Applicable component levels

  • R530 PSY U831794

       UP09/11/11 I 1000



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Document information


More support for:

AIX family

Software version:

530

Operating system(s):

AIX

Reference #:

IZ60343

Modified date:

2010-05-12

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