IBM Support

SE65588 - RPGLE-RUN-PERFM UNNECESSARY CALLS TO QUSRJOBI DURING *INIT PHASE FOR A MODULE

 APAR (Authorized Program Analysis Report)

Abstract

RPGLE-RUN-PERFM UNNECESSARY CALLS TO QUSRJOBI DURING *INIT PHASE
FOR A MODULE

Error Description

An ILE RPG module or program compiled with TGTRLS(V7R2M0) may  
make unnecessary calls to QUSRJOBI during module initialization.
                                                               
Module initialization occurs when the first procedure in the    
module is called, and for a cycle-main module, when the main    
procedure is called again if previous call to the main procedure
ended with *INLR off, or it ended abnormally.                  

Problem Summary

****************************************************************
* PROBLEM: (SE65588) Licensed Program = 5770WDS for i 7.2 and  *
*                                       i 7.3                  *
*           Severe Performance Degradation                     *
****************************************************************
* USERS AFFECTED: All IBM i operating system users who run ILE *
*                 RPG programs.                                *
****************************************************************
* RECOMMENDATION: Apply PTF SI62208 for i 7.2 and recompile    *
*                 the programs.                                *
*                 Apply PTF SI62608 for i 7.3 and recompile    *
*                 the programs.                                *
****************************************************************
                                                               
****************************************************************
* USERS AFFECTED: All ILE RPG programmers.                     *
****************************************************************
* PROBLEM DESCRIPTION: An ILE RPG module or program compiled   *
*                      with TGTRLS(V7R2M0) may make            *
*                      unnecessary calls to QUSRJOBI during    *
*                      module initialization.                  *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
An ILE RPG module or program compiled with TGTRLS(V7R2M0) may  
make unnecessary calls to QUSRJOBI during module initialization.
                                                               
Module initialization occurs when the first procedure in the    
module is called, and for a cycle-main module, when the main    
procedure is called again if previous call to the main procedure
ended with *INLR off, or it ended abnormally.                  

Problem Conclusion

The ILE RPG compiler will be change so that QUSRJOBI is only    
called during module initialization when it is necessary.      

Temporary Fix

                       *********                                
                       * HIPER *                                
                       *********                                

Comments

Circumvention


- Compile with TGTRLS(V7R1M0)                                  

                                                               
- If the module has a cycle-main procedure, reduce the number  
of times that module initialization is done by returning with  
LR off.                                                        

PTFs Available

R720 SI62208 PTF Cover Letter   6306
R730 SI62608 PTF Cover Letter   7061

Affected Modules

         
         

Affected Publications

Summary Information

Status............................................ CLOSED PER
HIPER........................................... Yes
Component.................................. 5770WDS30
Failing Module.......................... NONE
Reported Release................... R720
Duplicate Of..............................




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Document information

More support for: i family

Software version: V7R1M0, V7R2M0, V7R3M0

Operating system(s): OS/400

Reference #: SE65588

Modified date: 17 March 2017