IV85181: RUNTIME.AVAILABLEPROCESSORS() REPORTS NUMBER OF PHYSICAL PROCESS ORS, NOT BOUND PROCESSORS

APAR status

• Closed as program error.

Error description

• Error Message: When a Java VM is run on a subset of the physical
  processors,
  for example using numactl, Runtime.availableProcessors()
  reports the number of physical CPUs instead of the
  number of bound processors.
  .
  Stack Trace: N/A
  .
  

Local fix

Problem summary

• Runtime.availableProcessors() queried the number of physical
  processors.
  

Problem conclusion

• Runtime.availableProcessors() queries the number of processors
  bound to the current process.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR3 FP10  (8.0.3.10)
  .
  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

Comments

APAR Information

• 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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R270 PSY

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