Bug ID: JDK-8073052 Rename and clean up the allocation manager hierarchy in g1Allocator.?pp

JDK-8073052 : Rename and clean up the allocation manager hierarchy in g1Allocator.?pp

Type: Enhancement
Component: hotspot
Sub-Component: gc
Affected Version: 9

Priority: P5
Status: Resolved
Resolution: Fixed

Submitted: 2015-02-12
Updated: 2015-09-10
Resolved: 2015-08-06

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JDK 9
9 b79Fixed

Related Reports

Blocks :	JDK-8074546 - Rename and clean up the ParGCAllocBuffer class
Duplicate :	JDK-8073317 - Move all region level allocation related things into AllocRegionManager
Relates :	JDK-8030849 - Investigate high fragmentation/waste in some situations during allocation during GC in G1
Relates :	JDK-8073317 - Move all region level allocation related things into AllocRegionManager

Description

There are a few issues with the allocation manager hierarchy in g1Allocator.?pp:
- G1ParGCAllocator should be renamed to G1PLABAllocator to conform to the "new" PLAB names (e.g. PLAB instead of ParGC)
- resolve some include cycles
- some additional documentation would be nice
- decrease the amount of back-and-forth between G1CollectedHeap and G1Allocator; hide G1AllocRegion from G1CollectedHeap