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PJ40713: LPAR UTILISATION IS 1/3 OF EXPECTED AFTER PJ40215 13/01/21 PTF PECHANGE

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APAR status

  • Closed as program error.

Error description

  • See Problem Summary.
    

Local fix

  • na
    

Problem summary

  • APAR NUMBER:  PJ40713
    PRODUCT:  z/TPF
    FUNCTIONAL AREA:  CONTINUOUS DATA COLLECTION (CDC)
    SHIPPED IN PUT:  10
    
    ABSTRACT:
    LPAR Utilization is incorrect with PJ40215 applied.
    
    PACKAGE CONTENTS:
    Source Segments:
    (C) base/rt/cdcp.c
    
    Object Only Binaries:
    None.
    
    Configuration Independent Binaries:
    (C) base/obj/cdcp.o
    (C) base/load/CDCP.so
    
    Support Files:
    base/lst/cdcp.lst
    base/lst/CDCP.map
    
    OTHER BINARIES TO BUILD: NO
    None.
    
    
    COMMENTS:
    LPAR utilization is calculated by totaling the dispatch time of
    all CP-type processors assigned to an LPAR and dividing by the
    number of CP-type processors assgned to the LPAR. Segemnt
    cdcp.c, funtion cdc_add_lpar_utilization_data, has a loop that
    totals the dispatch time of all CP-type processors assigned to
    an LPAR. A bug in the loop causes the loop to not total the
    dispatch times: when the loop exits, what should be the total
    dispatch time of all the CP-type processors is actually the
    dispatch time of only the last CP-type processor. That
    incorrect dispatch total is then divided by the correct number
    of CP-type processors assigned to the LPAR. The result is if
    there is more than one CP-type processor assigned to the LPAR,
    CDC will report an incorrect LPAR utilization.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PJ40713

  • Reported component name

    Z/TPF

  • Reported component ID

    5748T1501

  • Reported release

    110

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2012-11-07

  • 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:

Fix information

  • Fixed component name

    Z/TPF

  • Fixed component ID

    5748T1501

Applicable component levels

  • R110 PSY

       UP



Document information

More support for: TPF
z/TPF

Software version: 110

Reference #: PJ40713

Modified date: 2013-01-21