IV23280: TRACEPOINTS IN SUN.MISC.UNSAFE HURT PERFORMANCE.

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: Performance hit due to excessive trace messages.
    .
    Stack Trace: N/A
    .
    Tracepoints in hot code were affecting performance negatively.
    

Local fix

  • Use the vmarg -Xtrace:none=j9jcl.28-55 to disable the excessive
    tracing.
    

Problem summary

  • The problem is caused by excessive verbose trace output for
    certain messages with default settings.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.1 SR4
    7.0.0 SR3
    .
    The default settings for those certain error messages have been
    changed to reduce trace output.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV23280

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-19

  • Closed date

    2012-06-19

  • Last modified date

    2012-06-19

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

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

Fix information

  • Fixed component name

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R260 PSY

       UP



Rate this page:

(0 users)Average rating

Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

260

Reference #:

IV23280

Modified date:

2012-06-19

Translate my page

Machine Translation

Content navigation