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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes

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Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv

Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
This commit is contained in:
Coleen Phillimore 2008-04-13 17:43:42 -04:00
parent 680ecf1611
commit 4a831d45f0
273 changed files with 6585 additions and 2993 deletions
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6
hotspot/src/share/vm/gc_interface/collectedHeap.hpp
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@ -53,7 +53,6 @@ class CollectedHeap : public CHeapObj {
bool _is_gc_active;
unsigned int _total_collections; // ... started
unsigned int _total_full_collections; // ... started
size_t _max_heap_capacity;
NOT_PRODUCT(volatile size_t _promotion_failure_alot_count;)
NOT_PRODUCT(volatile size_t _promotion_failure_alot_gc_number;)
@ -149,10 +148,7 @@ class CollectedHeap : public CHeapObj {
virtual void post_initialize() = 0;
MemRegion reserved_region() const { return _reserved; }
// Return the number of bytes currently reserved, committed, and used,
// respectively, for holding objects.
size_t reserved_obj_bytes() const { return _reserved.byte_size(); }
address base() const { return (address)reserved_region().start(); }
// Future cleanup here. The following functions should specify bytes or
// heapwords as part of their signature.