JDK-8056248 : Improve ForkJoin thread throttling
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.util.concurrent
  • Affected Version: 8,9
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • Submitted: 2014-08-28
  • Updated: 2017-05-17
  • Resolved: 2014-09-05
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.
JDK 8 JDK 9
8u40Fixed 9 b31Fixed
Related Reports
Duplicate :  
Duplicate :  
Relates :  
Description
The ForkJoin implementation in the 166 repository:

http://gee.cs.oswego.edu/cgi-bin/viewcvs.cgi/jsr166/src/main/java/util/concurrent/ForkJoinPool.java?sortby=date&view=log
http://gee.cs.oswego.edu/cgi-bin/viewcvs.cgi/jsr166/src/main/java/util/concurrent/ForkJoinTask.java?sortby=date&view=log
http://gee.cs.oswego.edu/cgi-bin/viewcvs.cgi/jsr166/src/main/java/util/concurrent/ForkJoinWorkerThread.java?sortby=date&view=log

has been updated with improved thread throttling behaviour:

http://cs.oswego.edu/pipermail/concurrency-interest/2014-July/012836.html

The implementation in jdk 9 (and preferably 8u40) should be updated accordingly.