PM67395: DUE TO EXCESSIVE GETMAIN/FREEMAIN AT ENTRY AND EXIT OF DFSFLGX0 USER EXIT GLX CREATES STORAGE FRAGMENTATION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Due to excessive GETMAIN/FREEMAIN at entry and exit of DFSFLGX0
  user exit GLX creates storage fragmentation
  This CPU increase problem is in GLX due to excessive
  GETMAIN/FREEMAIN at entry and exit of DFSFLGX0 user exit
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: ALL IMS TOOLS GENERIC LOGGER EXIT USERS      *
  ****************************************************************
  * PROBLEM DESCRIPTION: CPU TIME INCREASES FOR IMS CONTROL      *
  *                      REGION DUE TO EXCESSIVE GETMAIN/        *
  *                      FREEMAIN ACTIVITIES BY GLX CODE         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  GENERIC LOGGER EXIT USES MVS GETMAIN/FREEMAIN AT ENTRY
  AND EXIT TO OBTAIN MODULE'S SAVEAREA. THIS CAUSES CPU TIME
  INCREASE OVER TIME FOR IMS CONTROL REGION.
  

Problem conclusion

• GLX'S GLXILGXX MODULE WAS CHANGED TO REUSE SAVEAREA STORAGE
  TO AVOID EXCESSIVE GETMAIN/FREEMAIN ACTIVITIES
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  UK80735 UK80736 UK80737

Modules/Macros

•    GLXILGXA GLXILGXB GLXILGXC
  

Fix information

• Fixed component name

  TOOLS BASE

• Fixed component ID

  5655V9300

Applicable component levels

• R110 PSY UK80735

     UP12/08/01 P F207 Ž

• R120 PSY UK80736

     UP12/08/01 P F207 Ž

• R130 PSY UK80737

     UP12/08/01 P F207 Ž

Fix is available

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