JDK-8065117 : Use GenCollectedHeap::_max_gens instead of BarrierSet::_max_covered_regions
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2014-11-17
  • Updated: 2019-02-11
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tbdUnresolved
Related Reports
Blocks :  
JDK-8057632 - Remove auxiliary code used to handle the generations array
Relates :  
JDK-8064721 - The card tables only ever need two covering regions
Description
When the generations abstraction has been cleaned up, then the constant BarrierSet::_max_covered_regions can be removed and we can instead use GenCollectedHeap::_max_gens.
Comments
For more some more background and details, see the email thread starting at http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2014-November/011279.html
17-11-2014