PH41437: COMPILATION SPEED IS SIGNIFICANTLY SLOWER WITH HEAVY USE OF PERFORMS USING NUMCHECK AND INITCHECK

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Compilation speed is significantly slower with heavy use of
  PERFORMs using NUMCHECK and INITCHECK
  

Local fix

• Compile with NONUMCHECK,NOINITCHECK
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL 6.2 compiling      *
  *                 programs with NUMCHECK or INITCHECK that     *
  *                 have a significant number of PERFORMs in     *
  *                 relation to the size of the program          *
  ****************************************************************
  * PROBLEM DESCRIPTION: Compilation speed is significantly      *
  *                      slower with NUMCHECK or INITCHECK than  *
  *                      with NONUMCHECK,NOINITCHECK             *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF                       *
  ****************************************************************
  NUMCHECK and INITCHECK make use of analysis that traces the flow
  of data through the program, taking PERFORMs into account.
  While
  there is always some overhead by considering all PERFORMs,
  programs with a significant number of PERFORMs in relation to
  the size of the program cause NUMCHECK and INITCHECK to take
  considerably longer to complete their analysis.
  

Problem conclusion

• The compiler was changed to stop using the PERFORM-aware
  analysis for NUMCHECK and INITCHECK if more than 10% of the
  MDECK consists of PERFORM statements.
  

Temporary fix

Comments

APAR Information

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

  PH39904

• 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 IGYCOB2E IGYCOPI
  IGYCOPT  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 UI77740

     UP21/10/30 P F110

• R621 PSY UI77741

     UP21/10/30 P F110

• R622 PSY UI77742

     UP21/10/30 P F110

• R62H PSY UI77743

     UP21/10/30 P F110

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.