APAR status
Closed as program error.
Error description
Error Message: Java 8 runs slower compared to Java 7.1 . Stack Trace: N/A . N/A
Local fix
Problem summary
Redundant induction variable elimination optimization is dependent on induction variable analysis. For a certain hot loop, IV analysis failed to return a primary induction variable. Idiom Recognition's pattern match failed as a result and we produced sub-optimal code.
Problem conclusion
JIT has been modified to fix the above issue. The problem was introduced in Java 8 GA and has been fixed in Java 8 SR2. . This APAR will be fixed in the following Java Releases: 8 SR1 FP10 (8.0.1.10) . Contact your IBM Product's Service Team for these Service Refreshes and Fix Packs. For those running stand-alone, information about the available Service Refreshes and Fix Packs can be found at: https://www.ibm.com/developerworks/java/jdk/
Temporary fix
N/A
Comments
APAR Information
APAR number
IV75184
Reported component name
JIT
Reported component ID
620700124
Reported release
130
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-07-15
Closed date
2015-07-15
Last modified date
2015-07-15
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
JIT
Fixed component ID
620700124
Applicable component levels
R130 PSY
UP
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC9HBA","label":"Just In Time (JIT) Compiler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"130","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
15 July 2015