PI86055: COBOL V6.1 PERFORMANCE DEGRADATION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Under CICS, execution time performance is increased with COBOL
  V6.1
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Enterprise COBOL users running programs      *
  *                 that make dynamic calls between COBOL V5+    *
  *                 and pre-COBOL V5 programs under CICS.        *
  ****************************************************************
  * PROBLEM DESCRIPTION: Run time Performance: When running      *
  *                      under CICS, dynamic call performance    *
  *                      can be degraded for calls between V5+   *
  *                      and pre-V5 programs. The effect may be  *
  *                      more noticeable when there are many     *
  *                      programs involved in the transaction.   *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  ****************************************************************
  In the COBOL runtime, various dynamic call fast path logic and
  call caching available under batch were not enabled when
  running under CICS.
  

Problem conclusion

• Dynamic call overhead has been reduced for the following
  scenarios under CICS (COBOL V5+ means COBOL V5 and later
  programs, pre-COBOL V5 means COBOL V4 and earlier programs):
  
  - COBOL V5+ to COBOL V5+
  - COBOL V5+ to pre-COBOL V5
  - pre-COBOL V5 to COBOL V5+
  

Temporary fix

Comments

APAR Information

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

  PI85875

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

Modules/Macros

• IGZCEV4  IGZCMGEN IGZCMGUE IGZLLIBV IGZXAPI  IGZXCDA  IGZXD24
  IGZXDMR  IGZXLPIO IGZXLPKA IGZXLPKB IGZXLPKC IGZXLPKD IGZXLPKE
  IGZXLPKF IGZXLPKG IGZXPK2
  

Fix information

• Fixed component name

  LE ENT COBOL LI

• Fixed component ID

  568819812

Applicable component levels

• R7B0 PSY UI49631

     UP17/09/28 P F709

Fix is available

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