PI66878: IMPROVE CALCULATION OF INPUT QUEUE TIME IN A SHARED QUEUES ENVIRONMENT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When processing input logs from a Shared Queues environment, IMS
  PA may use several different criteria for establishing the Input
  Message arrival time, leading to possible inconsistencies in
  determining the Input queue time.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IMS Performance Analyzer V4.4       *
  ****************************************************************
  * PROBLEM DESCRIPTION: Improve calculation of Input queue time *
  *                      in a Shared Queues environment.         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When processing input logs from a Shared Queues environment,
  IMS PA may use several different criteria for establishing
  the Input Message arrival time,leading to possible
  inconsistencies in determining the Input queue time.
  

Problem conclusion

• When processing input logs from a Shared Queues environment,
  if the front-end x'01' Input message (CQSPUT) and x'35'
  Message Enqueue records are not available, IMS PA will
  establish the Input Message arrival time using the x'31' DLI
  GU QLGUPRTK (Processing token) STCK value. The Input Queue
  time will then be calculated as the difference between the
  x'31' QLGUPRTK value and the x'31' QLGUDTME value.
  This will result in a consistent and accurate calculation in
  the situation where the records from the front-end logs are
  unavailable.
  As a result of this change to the calculation of STARTIMS
  (IMS transaction arrival time), the following values
  might be affected:
     INPUTQ: Input queue time
     RESPIMS: IMS response time
     TOTALTM: Total transaction elapsed time
  

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:

  UI40851

Modules/Macros

• IPIADPX1 IPIIPROC IPISAPAR
  

Fix information

• Fixed component name

  IMS PERF ANALYZ

• Fixed component ID

  5655E1500

Applicable component levels

• R440 PSY UI40851

     UP16/09/20 P F609

Fix is available

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