PH34291: PERFORMANCE MAY BE WORSE AT ARCH(12) THAN ARCH(11) WHEN COMPARING BINARY/COMP/COMP-4 DATA ITEMS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Performance may be worse at ARCH(12) than ARCH(11) when
  comparing BINARY/COMP/COMP-4 data items
  

Local fix

• Compile at ARCH(11)
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL 6.2 compiling      *
  *                 programs at ARCH(12) that compare            *
  *                 BINARY/COMP/COMP-4 data items.               *
  ****************************************************************
  * PROBLEM DESCRIPTION: Performance may be worse at ARCH(12)    *
  *                      than ARCH(11).                          *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF                       *
  ****************************************************************
  The compiler's internal state was incorrect, leading it to
  generate instructions for comparing BINARY data items at
  ARCH(12) that were the most efficient choice on a z196 machine,
  not on a z14.
  

Problem conclusion

• The compiler was fixed to generate the most efficient
  instructions for comparing BINARY data items on a z14 when
  compiling at ARCH(12).
  

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:

Modules/Macros

• IGY8RWTU IGYCASMB IGYCCBE  IGYCCCRT IGYCCICS IGYCCSRV IGYCDGEN
  IGYCDIAG IGYCDMAP IGYCEN$0 IGYCEN$1 IGYCEN$2 IGYCEN$3 IGYCEN$4
  IGYCEN$5 IGYCEN$8 IGYCEN$D IGYCEN$R IGYCFGEN IGYCFREE IGYCINIT
  IGYCJA$0 IGYCJA$1 IGYCJA$2 IGYCJA$3 IGYCJA$4 IGYCJA$5 IGYCJA$8
  IGYCJA$D IGYCJA$R IGYCLIBH IGYCLIBO IGYCLIBR IGYCLSTR IGYCLVL0
  IGYCLVL1 IGYCLVL2 IGYCLVL3 IGYCLVL8 IGYCMALL IGYCOSCN IGYCPGEN
  IGYCRCTL IGYCRDPR IGYCRDSC IGYCREAL IGYCRWT  IGYCSCAN IGYCSIMD
  IGYCUE$0 IGYCUE$1 IGYCUE$2 IGYCUE$3 IGYCUE$4 IGYCUE$5 IGYCUE$8
  IGYCUE$D IGYCUE$R IGYCXREF IGYDRV   IGYEQCWI IGYMSGE  IGYMSGK
  IGYMSGT  IGYQCBE  IGYZQDRV IGYZQENU IGYZQJPN
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655EC600

Applicable component levels

• R620 PSY UI74024

     UP21/02/23 P F102

• R621 PSY UI74025

     UP21/02/23 P F102

• R622 PSY UI74026

     UP21/02/23 P F102

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.