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src/share/vm/memory/defNewGeneration.cpp
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rev 7209 : [mq]: inccms
@@ -192,15 +192,11 @@
{
MemRegion cmr((HeapWord*)_virtual_space.low(),
(HeapWord*)_virtual_space.high());
Universe::heap()->barrier_set()->resize_covered_region(cmr);
- if (GenCollectedHeap::heap()->collector_policy()->has_soft_ended_eden()) {
- _eden_space = new ConcEdenSpace(this);
- } else {
- _eden_space = new EdenSpace(this);
- }
+ _eden_space = new ContiguousSpace();
_from_space = new ContiguousSpace();
_to_space = new ContiguousSpace();
if (_eden_space == NULL || _from_space == NULL || _to_space == NULL)
vm_exit_during_initialization("Could not allocate a new gen space");
@@ -1036,42 +1032,16 @@
HeapWord* result = eden()->par_allocate(word_size);
if (result != NULL) {
if (CMSEdenChunksRecordAlways && _next_gen != NULL) {
_next_gen->sample_eden_chunk();
}
- return result;
- }
- do {
- HeapWord* old_limit = eden()->soft_end();
- if (old_limit < eden()->end()) {
- // Tell the next generation we reached a limit.
- HeapWord* new_limit =
- next_gen()->allocation_limit_reached(eden(), eden()->top(), word_size);
- if (new_limit != NULL) {
- Atomic::cmpxchg_ptr(new_limit, eden()->soft_end_addr(), old_limit);
- } else {
- assert(eden()->soft_end() == eden()->end(),
- "invalid state after allocation_limit_reached returned null");
- }
} else {
- // The allocation failed and the soft limit is equal to the hard limit,
- // there are no reasons to do an attempt to allocate
- assert(old_limit == eden()->end(), "sanity check");
- break;
- }
- // Try to allocate until succeeded or the soft limit can't be adjusted
- result = eden()->par_allocate(word_size);
- } while (result == NULL);
-
// If the eden is full and the last collection bailed out, we are running
// out of heap space, and we try to allocate the from-space, too.
// allocate_from_space can't be inlined because that would introduce a
// circular dependency at compile time.
- if (result == NULL) {
result = allocate_from_space(word_size);
- } else if (CMSEdenChunksRecordAlways && _next_gen != NULL) {
- _next_gen->sample_eden_chunk();
}
return result;
}
HeapWord* DefNewGeneration::par_allocate(size_t word_size,
@@ -1081,15 +1051,10 @@
_next_gen->sample_eden_chunk();
}
return res;
}
-void DefNewGeneration::gc_prologue(bool full) {
- // Ensure that _end and _soft_end are the same in eden space.
- eden()->set_soft_end(eden()->end());
-}
-
size_t DefNewGeneration::tlab_capacity() const {
return eden()->capacity();
}
size_t DefNewGeneration::tlab_used() const {
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