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src/hotspot/share/gc/parallel/parallelScavengeHeap.cpp
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@@ -23,10 +23,11 @@
*/
#include "precompiled.hpp"
#include "code/codeCache.hpp"
#include "gc/parallel/adjoiningGenerations.hpp"
+#include "gc/parallel/adjoiningGenerationsForHeteroHeap.hpp"
#include "gc/parallel/adjoiningVirtualSpaces.hpp"
#include "gc/parallel/gcTaskManager.hpp"
#include "gc/parallel/generationSizer.hpp"
#include "gc/parallel/objectStartArray.inline.hpp"
#include "gc/parallel/parallelScavengeHeap.inline.hpp"
@@ -56,11 +57,15 @@
PSAdaptiveSizePolicy* ParallelScavengeHeap::_size_policy = NULL;
PSGCAdaptivePolicyCounters* ParallelScavengeHeap::_gc_policy_counters = NULL;
GCTaskManager* ParallelScavengeHeap::_gc_task_manager = NULL;
jint ParallelScavengeHeap::initialize() {
- const size_t heap_size = _collector_policy->max_heap_byte_size();
+ size_t heap_size = _collector_policy->max_heap_byte_size();
+
+ if (AllocateOldGenAt != NULL && UseAdaptiveGCBoundary) {
+ heap_size = AdjoiningGenerationsForHeteroHeap::required_reserved_memory(_collector_policy);
+ }
ReservedSpace heap_rs = Universe::reserve_heap(heap_size, _collector_policy->heap_alignment());
os::trace_page_sizes("Heap",
_collector_policy->min_heap_byte_size(),
@@ -84,11 +89,17 @@
// size of the generation as the boundaries currently stand.
// _max_gen_size is still used as that value.
double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0;
double max_gc_minor_pause_sec = ((double) MaxGCMinorPauseMillis)/1000.0;
+ if (AllocateOldGenAt != NULL && UseAdaptiveGCBoundary) {
+ _gens = new AdjoiningGenerationsForHeteroHeap(heap_rs, _collector_policy->max_heap_byte_size() /* total_size_limit */,
+ _collector_policy, generation_alignment());
+ }
+ else {
_gens = new AdjoiningGenerations(heap_rs, _collector_policy, generation_alignment());
+ }
_old_gen = _gens->old_gen();
_young_gen = _gens->young_gen();
const size_t eden_capacity = _young_gen->eden_space()->capacity_in_bytes();
@@ -102,11 +113,11 @@
max_gc_pause_sec,
max_gc_minor_pause_sec,
GCTimeRatio
);
- assert(!UseAdaptiveGCBoundary ||
+ assert(AllocateOldGenAt != NULL || !UseAdaptiveGCBoundary ||
(old_gen()->virtual_space()->high_boundary() ==
young_gen()->virtual_space()->low_boundary()),
"Boundaries must meet");
// initialize the policy counters - 2 collectors, 2 generations
_gc_policy_counters =
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