PH63645: Z CODE OPTIMIZATION ADVICE - 2.3 Z/OS HOST COMPONENT RELEASE

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible in next release.

Error description

• Z Code Optimization Advice - 2.3 z/OS Host component release
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Z Code Optimization Advice who      *
  *                 have programs that contain GO TO ..          *
  *                 DEPENDING ON statements or that were         *
  *                 compiled using PARMCHECK. Users of Z Code    *
  *                 Optimization Advice who upgrade to the IBM   *
  *                 watsonx Code Assistant for Z 2.3 release     *
  *                 should upgrade the z/OS host component to    *
  *                 obtain new function support.                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: New Function:                           *
  *                      1. The performance impact of PARMCHECK  *
  *                      is now measured.                        *
  *                                                              *
  *                      2. Z Code Optimization Advice now       *
  *                      recommends that binary data items are   *
  *                      used instead of USAGE DISPLAY or        *
  *                      PACKED-DECIMAL data items in GO TO ..   *
  *                      DEPENDING ON statements.                *
  ****************************************************************
  * RECOMMENDATION: Apply the IBM-provided PTF                   *
  ****************************************************************
  1. The performance impact of PARMCHECK was not measured.
  
  2. Z Code Optimization Advice did not previously recommend that
  binary data items are used in GO TO .. DEPENDING ON statements.
  

Problem conclusion

Temporary fix

Comments

• Z Code Optimization Advice was updated as follows:
  1. The impact of PARMCHECK is now measured.
  
  2. Binary data items are now recommended for GO TO .. DEPENDING
  ON statements that use USAGE DISPLAY or PACKED-DECIMAL data
  items.
  

APAR Information

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

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

  UI98822

Modules/Macros

• CQIALC   CQIBE    CQIBXITA CQICONFG CQIINIT  CQIINITJ CQIIVPE
  CQIIVPJ  CQIIVPS1 CQIIVPS2 CQIMSGE  CQIMSGK  CQIMSGT  CQIRIDT
  

Fix information

• Fixed component name

  CODE OPT ADVICE

• Fixed component ID

  5900B4M04

Applicable component levels

• R210 PSY UI98822

     UP24/10/29 P F410

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.