JDK-8048179 : Early reclaim of large objects that are referenced by a few objects
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2014-06-26
  • Updated: 2016-10-03
  • Resolved: 2015-01-07
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8u60Fixed 9 b47Fixed
Related Reports
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Sub Tasks
JDK-8166785 :  
JDK-8027959 introduces early reclamation of large objects that have no incoming references at all.

Investigate relaxing this restriction (both effectiveness/time taken) by allowing reclamation of large objects with a few references (e.g. having only sparse table entries) - just iterate over them, and reclaim if we find out there are actually no references to it.

Most likely this results in additional objects to be reclaimed, as the remembered set entries may be stale already.