JDK-8150134 : Simplify concurrent refinement thread deactivation
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2016-02-18
  • Updated: 2018-05-24
  • Resolved: 2016-02-22
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JDK 9
9 b109Fixed
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Description
Concurrent refinement threads explicitly compare the current number of buffers with their deactivation threadhold to determine whether to deactivate.  They also call apply_closure_to_completed_buffer with a "stop_at" of the green zone value, and deactivate if it returns false.  It would be simpler to skip the explicit check for deactivation and just call apply_closure_to_completed_buffer with the deactivation threshold as the stop_at value.