JDK-8368942 : G1: Investigate refinement control thread cpu usage
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2025-09-30
  • Updated: 2025-10-03
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tbdUnresolved
Related Reports
Relates :  
JDK-8342382 - Implement JEP 522: G1 GC: Improve Throughput by Reducing Synchronization
Description
Refinement thread control thread cpu usage seems fairly high on BigRAMTester/Cachestress where it is constantly running for what it does.

Investigate whether this cpu usage is really unusual or not.