JDK-8253343 : Extract G1 Young GC algorithm related code from G1CollectedHeap
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 16
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2020-09-18
  • Updated: 2021-09-07
  • Resolved: 2021-09-06
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JDK 18
18 masterFixed
Related Reports
Relates :  
JDK-8273439 - Fix G1CollectedHeap includes and forward declarations
Relates :  
JDK-8272978 - Factor out g1 young collection specific data structures
Description
G1CollectedHeap has traditionally been a catch-all bucket for everything related to G1.

One big part that is somewhat unrelated to the heap management is the evacuation algorithm applied to the heap during the pause

The goal here is to extract the algorithm into a separate class (e.g. G1YoungCollector) that contains all collection pause related code, disentangling the algorithm applied similar to G1FullCollector from the generic CollectedHeap functionality.
Comments
Changeset: 2cabec8d Author: Thomas Schatzl <tschatzl@openjdk.org> Date: 2021-09-06 14:28:54 +0000 URL: https://git.openjdk.java.net/jdk/commit/2cabec8ddc19dd66495957e7ef553990a502e993
06-09-2021