JDK-8142950 : Refactor G1 YC preparation code
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P3
  • Status: Closed
  • Resolution: Duplicate
  • Submitted: 2015-11-13
  • Updated: 2019-10-01
  • Resolved: 2019-10-01
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tbdResolved
Related Reports
Duplicate :  
JDK-8213108 - Improve work distribution during remembered set scan
Description
During the review of JDK-8139424 an idea to move more of the preparation code for the G1 YC into G1CollectedHeap::pre_evacuate_collection_set() came up. 

These are the methods that were discussed in the review:    
g1_rem_set()->cleanupHRRS();
register_humongous_regions_with_cset();

But there is probably more preparation code that could be moved together.
Comments
Sometime in JDK11 development we removed the HRRS cleanup; JDK-8213108 moved the region registration to the pre_evacuate_collection() set phase.
01-10-2019