IBM Support

IV35599: PERFORMANCE ISSUE WITH ARRAYCOPY FOR SOME ARRAY SIZES UNDER -XGC POLICY:METRONOME.

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APAR status

  • Closed as program error.

Error description

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

Local fix

Problem summary

  • Problem when running with -Xgcpolicy:metronome: for some
    specific cases of arrays, the arrayCopy operation was slow.
    

Problem conclusion

  • This defect will be fixed in:
    WRT-V3 SR4
    7.0.0 SR4
    .
    The JVM was updated to improve performance for some array sizes
    under Metronome.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV35599

  • Reported component name

    WRT VM

  • Reported component ID

    5724R0403

  • Reported release

    300

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-01-21

  • Closed date

    2013-01-21

  • Last modified date

    2013-01-21

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

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

    IV35669

Fix information

  • Fixed component name

    WRT VM

  • Fixed component ID

    5724R0403

Applicable component levels

  • R300 PSY

       UP



Document information

More support for: Runtimes for Java Technology
Virtual Machine

Software version: 7.0

Reference #: IV35599

Modified date: 21 January 2013