PM77633: TCP.TIMER HANDLING IS CAUSING HIGH CPU USAGE CALLING SVC B AND PC TIME FOR EVERY DISPATCHED TCB WHEN RUNNING WITH HOURGLASS.

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APAR status

  • Closed as program error.

Error description

  • TCP.TIMER handling is causing high CPU usage calling SVC B and
    PC Time for every dispatched TCB when running with HourGlass.
    Significant increase of CPU usage in Hour Glass
    environment will be seen.
    

Local fix

  • STRRTC - 349849
    MM/MM
    
    Circumvention: None
    

Problem summary

  • TCP timer use of SVC B causes increased CPU usage when running
    with HourGlass.
    

Problem conclusion

  • Convert TIME calls back to STCK for TCP time outs.
    

Temporary fix

  • T048041
    

Comments

APAR Information

  • APAR number

    PM77633

  • Reported component name

    B STR CD FOR Z/

  • Reported component ID

    5655ST100

  • Reported release

    48X

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-11-23

  • Closed date

    2013-01-11

  • Last modified date

    2013-01-11

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

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

    PM78538

Modules/Macros

  •    DMGCLDSV DMGSDIPE DMTASSEL
    

Fix information

  • Fixed component name

    B STR CD FOR Z/

  • Fixed component ID

    5655ST100

Applicable component levels

  • R48X PSY

       UP

  • R501 PSY

       UP

  • R510 PSY

       UP



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Document information


More support for:

Sterling Connect:Direct

Software version:

48X

Reference #:

PM77633

Modified date:

2013-01-11

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