JDK-8368945 : G1: Re-refine to-cset cards concurrently
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2025-09-30
  • Updated: 2025-10-03
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.
Other
tbdUnresolved
Related Reports
Relates :  
JDK-8342382 - Implement JEP 522: G1 GC: Improve Throughput by Reducing Synchronization
Description
If garbage collection (or refinement) detects many empty cards (particularly to-cset cards), it might be useful to concurrently re-refine cards (i.e. try to clear them out) to decrease their number to scan during garbage collection, or during refinement over and over again.