JDK-8151168 : G1 mark stack is allocated manually using VirtualSpace methods
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 9
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • Submitted: 2016-03-03
  • Updated: 2016-07-13
  • Resolved: 2016-07-13
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JDK 10
10Resolved
Related Reports
Duplicate :  
JDK-8151996 - Revise mark stack memory management in CMMarkstack
Description
In G1CMMarkStack::allocate, the mark stack memory is allocated using VirtualSpace memory methods.

Change this code to use an ArrayAllocator, reducing the code size significantly.

Also add (optional) pre-touching.