OA39629: NEW FUNCTION TO REPORT THE HIGHEST PERCENT OF CPU TIME USED BY A SINGLE TASK IN AN ADDRESS SPACE

A fix is available

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APAR status

  • Closed as new function.

Error description

  • New function to provide enhanced reporting in the CPU Accounting
    section of the SMF type 30 record. The two new SMF type 30
    fields will report the highest percent of CPU time used by a
    single task in the address space. Also reported is the program
    name that is associated with the task that consumed the highest
    percentage of CPU time in the address space.
    
    The SMF type 30 record will be enhanced to include the following
    new fields:
      Field name:
        SMF30_Highest_Task_CPU_Percent
      Field description:
        For interval records, the largest percentage of CPU time
        used by any task in the address space, rounded to the
        nearest integer. The percentage value is calculated as:
        TCB time * 100 / interval time.  For step-end and job-end
        records, the value is the largest reported interval value.
        Field name:
          SMF30_Highest_Task_CPU_Program
        Field description:
          Program name running in the task that used the largest
          percentage of CPU time in this address space. This field
          corresponds to SMF30_Highest_Task_CPU_Percent.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Customers running HBB7770 and above          *
    ****************************************************************
    * PROBLEM DESCRIPTION: New function to provide enhanced        *
    *                      reporting in the CPU Accounting         *
    *                      section of the SMF type 30 record       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The SMF type 30 record is enhanced to include the following
    new fields:
      Field name:
        SMF30_Highest_Task_CPU_Percent
      Field description:
        For interval records, the largest percentage of CPU time
        used by any task in the address space, rounded to the
        nearest integer. The percentage value is calculated as:
        TCB time * 100 / interval time.  For step-end and job-end
        records, the value is the largest reported interval value.
    
      Field name:
        SMF30_Highest_Task_CPU_Program
      Field description:
        Program name running in the task that used the largest
        percentage of CPU time in this address space. This field
        corresponds to SMF30_Highest_Task_CPU_Percent.
    

Problem conclusion

Temporary fix

Comments

  • The SMF type 30 record is enhanced as described in this APAR.
    The following documentation updates are made with this APAR:
    
    ORDER NO  - SA22-7630
    Book Title- MVS System Management Facilities (SMF)
    Location In Publication:
      Chapter:     Record Type 30 (1E) -- Common
                   Address Space Work
      Section:     Record Mapping
      Sub-Section: Processor Accounting Section
    
    Add the following field descriptions to the bottom of the
    section:
    
    Offsets Name             Len  Format  Description
    :       :                :       :    :
    176 B0  SMF30_Highest_   2    binary  For interval records,
            Task_CPU_Percent              the largest percentage
                                          of CPU time used by any
                                          task in this address
                                          space, rounded to the
                                          nearest integer. The
                                          percentage value is
                                          calculated as:  TCB time
                                          * 100 / interval time.
                                          For step-end and job-end
                                          records, the value is
                                          the largest reported
                                          interval value.
    178 B2  SMF30_HIGHEST_   8    EBCDIC  Program name running in
            Task_CPU_Program              the task that used the
                                          largest percentage of
                                          CPU time in this address
                                          space. This field
                                          corresponds to
                                          SMF30_Highest_Task_CPU
                                          _Percent. A value of
                                          blanks indicates that no
                                          task reported any CPU
                                          time in the address
                                          space, or that the CPU
                                          time could not be
                                          obtained.  A value of
                                          '????????' indicates
                                          that the program name
                                          could not be obtained
                                          for the task that
                                          reported the highest
                                          percentage of CPU time.
    

APAR Information

  • APAR number

    OA39629

  • Reported component name

    SMF SCHEDULER

  • Reported component ID

    5752SC100

  • Reported release

    760

  • Status

    CLOSED UR1

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    YesSpecatt / New Function

  • Submitted date

    2012-05-18

  • Closed date

    2012-07-13

  • Last modified date

    2012-08-08

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

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

    UA65959 UA65960

Modules/Macros

  •    IEASTCBP IEFSMFIE IEFSMF30 IEFTB721 IEFTB726
    IEFTB728 IEFTCT   IFAEASI  IFAJAC01 IFASMFR3 IHASTCB
    

Publications Referenced
SA22763000        

Fix information

  • Fixed component name

    SMF SCHEDULER

  • Fixed component ID

    5752SC100

Applicable component levels

  • R770 PSY UA65959

       UP12/07/26 P F207

  • R780 PSY UA65960

       UP12/07/25 P F207

Fix is available

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Document information


More support for:

z/OS family

Software version:

760

Operating system(s):

MVS, z/OS

Reference #:

OA39629

Modified date:

2012-08-08

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