5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "precompiled.hpp"
25 #include "gc/shared/oopStorage.hpp"
26 #include "gc/z/zAddress.hpp"
27 #include "gc/z/zGlobals.hpp"
28 #include "gc/z/zHeap.inline.hpp"
29 #include "gc/z/zHeapIterator.hpp"
30 #include "gc/z/zList.inline.hpp"
31 #include "gc/z/zLock.inline.hpp"
32 #include "gc/z/zMark.inline.hpp"
33 #include "gc/z/zOopClosures.inline.hpp"
34 #include "gc/z/zPage.inline.hpp"
35 #include "gc/z/zPageTable.inline.hpp"
36 #include "gc/z/zRelocationSet.inline.hpp"
37 #include "gc/z/zResurrection.hpp"
38 #include "gc/z/zRootsIterator.hpp"
39 #include "gc/z/zStat.hpp"
40 #include "gc/z/zTask.hpp"
41 #include "gc/z/zThread.hpp"
42 #include "gc/z/zTracer.inline.hpp"
43 #include "gc/z/zVirtualMemory.inline.hpp"
44 #include "gc/z/zWorkers.inline.hpp"
56 static const ZStatSampler ZSamplerHeapUsedAfterRelocation("Memory", "Heap Used After Relocation", ZStatUnitBytes);
57 static const ZStatCounter ZCounterUndoPageAllocation("Memory", "Undo Page Allocation", ZStatUnitOpsPerSecond);
58 static const ZStatCounter ZCounterOutOfMemory("Memory", "Out Of Memory", ZStatUnitOpsPerSecond);
59
60 ZHeap* ZHeap::_heap = NULL;
61
62 ZHeap::ZHeap() :
63 _workers(),
64 _object_allocator(_workers.nworkers()),
65 _page_allocator(heap_min_size(), heap_max_size(), heap_max_reserve_size()),
66 _pagetable(),
67 _mark(&_workers, &_pagetable),
68 _reference_processor(&_workers),
69 _weak_roots_processor(&_workers),
70 _relocate(&_workers),
71 _relocation_set(),
72 _serviceability(heap_min_size(), heap_max_size()) {
73 // Install global heap instance
74 assert(_heap == NULL, "Already initialized");
75 _heap = this;
76
77 // Update statistics
78 ZStatHeap::set_at_initialize(heap_max_size(), heap_max_reserve_size());
79 }
80
81 size_t ZHeap::heap_min_size() const {
82 const size_t aligned_min_size = align_up(InitialHeapSize, ZPageSizeMin);
83 return MIN2(aligned_min_size, heap_max_size());
84 }
85
86 size_t ZHeap::heap_max_size() const {
87 const size_t aligned_max_size = align_up(MaxHeapSize, ZPageSizeMin);
88 return MIN2(aligned_max_size, ZAddressOffsetMax);
89 }
90
91 size_t ZHeap::heap_max_reserve_size() const {
92 // Reserve one small page per worker plus one shared medium page. This is still just
93 // an estimate and doesn't guarantee that we can't run out of memory during relocation.
94 const size_t max_reserve_size = (_workers.nworkers() * ZPageSizeSmall) + ZPageSizeMedium;
95 return MIN2(max_reserve_size, heap_max_size());
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5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include "precompiled.hpp"
25 #include "gc/shared/fill.hpp"
26 #include "gc/shared/oopStorage.hpp"
27 #include "gc/z/zAddress.hpp"
28 #include "gc/z/zGlobals.hpp"
29 #include "gc/z/zHeap.inline.hpp"
30 #include "gc/z/zHeapIterator.hpp"
31 #include "gc/z/zList.inline.hpp"
32 #include "gc/z/zLock.inline.hpp"
33 #include "gc/z/zMark.inline.hpp"
34 #include "gc/z/zOopClosures.inline.hpp"
35 #include "gc/z/zPage.inline.hpp"
36 #include "gc/z/zPageTable.inline.hpp"
37 #include "gc/z/zRelocationSet.inline.hpp"
38 #include "gc/z/zResurrection.hpp"
39 #include "gc/z/zRootsIterator.hpp"
40 #include "gc/z/zStat.hpp"
41 #include "gc/z/zTask.hpp"
42 #include "gc/z/zThread.hpp"
43 #include "gc/z/zTracer.inline.hpp"
44 #include "gc/z/zVirtualMemory.inline.hpp"
45 #include "gc/z/zWorkers.inline.hpp"
57 static const ZStatSampler ZSamplerHeapUsedAfterRelocation("Memory", "Heap Used After Relocation", ZStatUnitBytes);
58 static const ZStatCounter ZCounterUndoPageAllocation("Memory", "Undo Page Allocation", ZStatUnitOpsPerSecond);
59 static const ZStatCounter ZCounterOutOfMemory("Memory", "Out Of Memory", ZStatUnitOpsPerSecond);
60
61 ZHeap* ZHeap::_heap = NULL;
62
63 ZHeap::ZHeap() :
64 _workers(),
65 _object_allocator(_workers.nworkers()),
66 _page_allocator(heap_min_size(), heap_max_size(), heap_max_reserve_size()),
67 _pagetable(),
68 _mark(&_workers, &_pagetable),
69 _reference_processor(&_workers),
70 _weak_roots_processor(&_workers),
71 _relocate(&_workers),
72 _relocation_set(),
73 _serviceability(heap_min_size(), heap_max_size()) {
74 // Install global heap instance
75 assert(_heap == NULL, "Already initialized");
76 _heap = this;
77
78 // Heap not parsable
79 Fill::set_disabled();
80
81 // Update statistics
82 ZStatHeap::set_at_initialize(heap_max_size(), heap_max_reserve_size());
83 }
84
85 size_t ZHeap::heap_min_size() const {
86 const size_t aligned_min_size = align_up(InitialHeapSize, ZPageSizeMin);
87 return MIN2(aligned_min_size, heap_max_size());
88 }
89
90 size_t ZHeap::heap_max_size() const {
91 const size_t aligned_max_size = align_up(MaxHeapSize, ZPageSizeMin);
92 return MIN2(aligned_max_size, ZAddressOffsetMax);
93 }
94
95 size_t ZHeap::heap_max_reserve_size() const {
96 // Reserve one small page per worker plus one shared medium page. This is still just
97 // an estimate and doesn't guarantee that we can't run out of memory during relocation.
98 const size_t max_reserve_size = (_workers.nworkers() * ZPageSizeSmall) + ZPageSizeMedium;
99 return MIN2(max_reserve_size, heap_max_size());
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