PM20063: HD POINTER CHECKER CPU TIME REDUCTION

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• This APAR is an improving CPU utilization of stand-alone HASH
  check.
  It addresses a Market Requirement MR0901041355.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: IBM IMS High Performance Pointer Checker for *
  *                 z/OS Version 3 Release 1 (FMID=HPC2310)      *
  *                 users who run HD Pointer Checker (HDPC) as   *
  *                 a stand-alone job.                           *
  ****************************************************************
  * PROBLEM DESCRIPTION: This APAR improves the CPU time when HD *
  *                      Pointer Checker(HDPC) runs with         *
  *                      HASH=YES or PTRCHK=NO option in a       *
  *                      stand-alone job.                        *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  This APAR reduces CPU time usage when HDPC runs under the
  following conditions:
   - HDPC FABPMAIN program runs as a stand-alone job.
   and
   - Either PROC HASH=YES or OPTION PTRCHK=NO is specified in the
    PROCCTL data set.
  
    Note that when BLOCKDUMP=, KEYSIN=YES, or NOCHKP= is
    specified, CPU time is not reduced even in the above
    conditions.
  
  This APAR also includes the following changes which improving
  pointer checking:
  
   - HDPC checks the count of logical child segment
     occurrences in the stand alone HASH checking, when the
     logical child segment has only symbolic logical pointer.
  
   - Before this APAR, the counts of LCL was incorrect
     which displayed in HISAM Segment Level Statistics report,
     when the logical parent segment has more than one LCL.
     This error is corrected by this APAR.
  

Problem conclusion

Temporary fix

Comments

• The following modules have been changed to improve the CPU time.
  
  FABPHEXS FABPHPSD FABPHSDA FABPHSHI FABPHSIX FABPLINK FABPPSDA
  FABPPSIX FABPSDA0 FABPSHI0 FABPSIX0 FABPSTAP FABPUDTB HPC2310J
  ×**** PE11/05/24 PTF IN ERROR. SEE APAR PM39887  FOR DESCRIPTION
  

APAR Information

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

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

  UK60261

Modules/Macros

•    FABPHEXS FABPHPSD FABPHSDA FABPHSHI FABPHSIX
  FABPLINK FABPPSDA FABPPSIX FABPSDA0 FABPSHI0 FABPSIX0 FABPSTAP
  FABPUDTB HPC2310J
  

Fix information

• Fixed component name

  IMS POINTER CHE

• Fixed component ID

  5655E0900

Applicable component levels

• R310 PSY UK60261

     UP10/09/08 P F009

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.