PH39904: 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 6.3 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:

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

  PH41437

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 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  IGYQSPLT IGYSIDE2 IGYZQEN6 IGYZQENU
  IGYZQJP6 IGYZQJPN
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655EC600

Applicable component levels

• R630 PSY UI77327

     UP21/10/01 P F109

• R631 PSY UI77328

     UP21/10/01 P F109

• R632 PSY UI77329

     UP21/10/01 P F109

• R63H PSY UI77330

     UP21/10/01 P F109

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.