PK58219: PERFORMANCE ISSUES RELATED TO SPILL MANAGER ALGORITHM

APAR status

• Closed as program error.

Error description

• Spill Manager module FRXWPSM0 is improved to make more logical
  and efficient use of dataspace for spilling data which is
  necessary when region storage becomes constrained.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Performance improvements on Spill Manager    *
  *                 code. Remove self test code and correct      *
  *                 dataspace free logic.                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: Improve CPU performance issues. Free    *
  *                      dataspaces correctly when empty, for    *
  *                      Spill Manager Component.                *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  Spill Manager improvements. Cpu time and fix dataspace release.
  

Problem conclusion

• AIDS: RIDS/UTIL RIDS/DBS DBS/UTIL
    GEN:
  
  *** END IMS KEYWORDS ***
  Spill Manager code used excessive CPU cycles. Optimise CPU
  utilization.
  

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:

  UK34571

Modules/Macros

• FRXRVDL  FRXWSPM0
  

Fix information

• Fixed component name

  IMS DB RECOVERY

• Fixed component ID

  5655I4400

Applicable component levels

• R310 PSY UK34571

     UP08/03/15 P F803