APAR status
Closed as program error.
Error description
Error Message: High CPU taken by gc in java 7.1, narrowed down to a higher percentage of time taken in function j9gc_spinlock_acquire(). . Stack Trace: N/A .
Local fix
Problem summary
The jvm was not allocating objects efficiently in conditions where there were more actively allocating threads than available CPUs.
Problem conclusion
The JVM's allocation algorithm has been optimized to handle cpu overload conditions and to acquire gc-related internal locks more efficiently. . This APAR will be fixed in the following Java Releases: 7 R1 SR3 (7.1.3.0) 8 SR1 (8.0.1.0) . Contact your IBM Product's Service Team for these Service Refreshes and Fix Packs. For those running stand-alone, information about the Service Refreshes and Fix Packs can be found at: https://www.ibm.com/developerworks/java/jdk/
Temporary fix
Comments
APAR Information
APAR number
IV71560
Reported component name
J9 COMMON CODE
Reported component ID
620700127
Reported release
270
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-03-27
Closed date
2015-03-27
Last modified date
2015-04-22
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
IV71561
Fix information
Fixed component name
J9 COMMON CODE
Fixed component ID
620700127
Applicable component levels
R270 PSY
UP
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
Document Information
Modified date:
21 February 2022