JDK-8276107 : Preventive collections trigger before maxing out heap
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 18
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2021-10-28
  • Updated: 2021-11-01
  • Resolved: 2021-11-01
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JDK 18
18 masterFixed
Related Reports
Relates :  
JDK-8257774 - G1: Trigger collect when free region count drops below threshold to prevent evacuation failures
Description
Preventive collections trigger before maxing out heap, i.e. it uses the current heap size for triggering instead of the maximum available.

As this feature is about preventing evacuation failures, they will not occur anyway if G1 can still expand the heap.
Comments
Changeset: e265f838 Author: Thomas Schatzl <tschatzl@openjdk.org> Date: 2021-11-01 16:48:13 +0000 URL: https://git.openjdk.java.net/jdk/commit/e265f83858b84451258677f130f98be5375a417a
01-11-2021