hg: jdk7/hotspot-gc/hotspot: 6672698: mangle_unused_area() should not remangle the entire heap at each collection.

[jon.masamitsu at sun.com]

Changeset: 12eea04c8b06
Author:    jmasa
Date:      2008-07-09 15:08 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/12eea04c8b06

6672698: mangle_unused_area() should not remangle the entire heap at each collection.
Summary: Maintain a high water mark for the allocations in a space and mangle only up to that high water mark.
Reviewed-by: ysr, apetrusenko

! src/share/vm/gc_implementation/concurrentMarkSweep/binaryTreeDictionary.cpp
! src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp
! src/share/vm/gc_implementation/concurrentMarkSweep/freeBlockDictionary.hpp
! src/share/vm/gc_implementation/concurrentMarkSweep/freeChunk.hpp
! src/share/vm/gc_implementation/includeDB_gc_concurrentMarkSweep
! src/share/vm/gc_implementation/includeDB_gc_parNew
! src/share/vm/gc_implementation/includeDB_gc_parallelScavenge
! src/share/vm/gc_implementation/includeDB_gc_shared
! src/share/vm/gc_implementation/parNew/asParNewGeneration.cpp
! src/share/vm/gc_implementation/parNew/parNewGeneration.cpp
! src/share/vm/gc_implementation/parallelScavenge/asPSYoungGen.cpp
! src/share/vm/gc_implementation/parallelScavenge/cardTableExtension.cpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
! src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp
! src/share/vm/gc_implementation/parallelScavenge/psMarkSweep.cpp
! src/share/vm/gc_implementation/parallelScavenge/psMarkSweepDecorator.cpp
! src/share/vm/gc_implementation/parallelScavenge/psOldGen.cpp
! src/share/vm/gc_implementation/parallelScavenge/psOldGen.hpp
! src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
! src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
! src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp
! src/share/vm/gc_implementation/parallelScavenge/psYoungGen.cpp
! src/share/vm/gc_implementation/parallelScavenge/psYoungGen.hpp
! src/share/vm/gc_implementation/shared/mutableNUMASpace.cpp
! src/share/vm/gc_implementation/shared/mutableNUMASpace.hpp
! src/share/vm/gc_implementation/shared/mutableSpace.cpp
! src/share/vm/gc_implementation/shared/mutableSpace.hpp
+ src/share/vm/gc_implementation/shared/spaceDecorator.cpp
+ src/share/vm/gc_implementation/shared/spaceDecorator.hpp
! src/share/vm/includeDB_core
! src/share/vm/includeDB_features
! src/share/vm/memory/defNewGeneration.cpp
! src/share/vm/memory/defNewGeneration.hpp
! src/share/vm/memory/dump.cpp
! src/share/vm/memory/genCollectedHeap.cpp
! src/share/vm/memory/genCollectedHeap.hpp
! src/share/vm/memory/genMarkSweep.cpp
! src/share/vm/memory/generation.cpp
! src/share/vm/memory/generation.hpp
! src/share/vm/memory/space.cpp
! src/share/vm/memory/space.hpp
! src/share/vm/runtime/globals.hpp
! src/share/vm/utilities/globalDefinitions.hpp