PI48566: CPU-CONSUMPTION 40% HIGHER IN V5.2 THAN V4.2

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CPU-Consumption 40% higher in V5.2 than V4.2
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL 5.2 compiling and  *
  *                 running programs that contain statements of  *
  *                 the form INSPECT x CONVERTING y TO z, where  *
  *                 y is a literal longer than 1 character and z *
  *                 is a figurative constant such as SPACES.     *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Poor runtime performance. The COBOL     *
  *                      program runs slower than an equivalent  *
  *                      program compiled with earlier           *
  *                      Enterprise COBOL compilers and exhibits *
  *                      increased CPU consumption.              *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply provided service.                      *
  ****************************************************************
  The compiler was not expanding the figurative constant to match
  the length of the first argument of the CONVERTING phrase, which
  would have allowed the conversion to be done inline with a TR
  instruction.  Instead, the compiler chose to call an expensive
  library routine to handle the conversion, which introduced
  significant overhead to the processing.
  

Problem conclusion

• The compiler was updated to handle this scenario with an inline
  TR instruction instead of a call to a library routine.
  

Temporary fix

Comments

APAR Information

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

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

  PI50445

Modules/Macros

• IGYCCBE
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655W3200

Applicable component levels

• R520 PSY UI31476

     UP15/09/30 P F509

Fix is available

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