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 #ifndef SHARE_GC_Z_ZRELOCATIONSETSELECTOR_HPP
25 #define SHARE_GC_Z_ZRELOCATIONSETSELECTOR_HPP
26
27 #include "gc/z/zArray.hpp"
28 #include "memory/allocation.hpp"
29
30 class ZPage;
31 class ZRelocationSet;
32
33 class ZRelocationSetSelectorGroup {
34 private:
35 const char* const _name;
36 const size_t _page_size;
37 const size_t _object_size_limit;
38 const size_t _fragmentation_limit;
39
40 ZArray<ZPage*> _registered_pages;
41 ZPage** _sorted_pages;
42 size_t _nselected;
43 size_t _relocating;
44
45 void semi_sort();
46
47 public:
48 ZRelocationSetSelectorGroup(const char* name,
49 size_t page_size,
50 size_t object_size_limit);
51 ~ZRelocationSetSelectorGroup();
52
53 void register_live_page(ZPage* page, size_t garbage);
54 void select();
55
56 ZPage* const* selected() const;
57 size_t nselected() const;
58 size_t relocating() const;
59 };
60
61 class ZRelocationSetSelector : public StackObj {
62 private:
63 ZRelocationSetSelectorGroup _small;
64 ZRelocationSetSelectorGroup _medium;
65 size_t _live;
66 size_t _garbage;
67
68 public:
69 ZRelocationSetSelector();
70
71 void register_live_page(ZPage* page);
72 void register_garbage_page(ZPage* page);
73 void select(ZRelocationSet* relocation_set);
74
75 size_t live() const;
76 size_t garbage() const;
77 size_t relocating() const;
78 };
79
80 #endif // SHARE_GC_Z_ZRELOCATIONSETSELECTOR_HPP
|
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 #ifndef SHARE_GC_Z_ZRELOCATIONSETSELECTOR_HPP
25 #define SHARE_GC_Z_ZRELOCATIONSETSELECTOR_HPP
26
27 #include "gc/z/zArray.hpp"
28 #include "memory/allocation.hpp"
29
30 class ZPage;
31 class ZRelocationSet;
32
33 class ZRelocationSetSelectorGroupStats {
34 friend class ZRelocationSetSelectorGroup;
35
36 private:
37 size_t _npages;
38 size_t _total;
39 size_t _live;
40 size_t _garbage;
41 size_t _empty;
42 size_t _compacting_from;
43 size_t _compacting_to;
44
45 public:
46 ZRelocationSetSelectorGroupStats();
47
48 size_t npages() const;
49 size_t total() const;
50 size_t live() const;
51 size_t garbage() const;
52 size_t empty() const;
53 size_t compacting_from() const;
54 size_t compacting_to() const;
55 };
56
57 class ZRelocationSetSelectorStats {
58 friend class ZRelocationSetSelector;
59
60 private:
61 ZRelocationSetSelectorGroupStats _small;
62 ZRelocationSetSelectorGroupStats _medium;
63 ZRelocationSetSelectorGroupStats _large;
64
65 public:
66 const ZRelocationSetSelectorGroupStats& small() const;
67 const ZRelocationSetSelectorGroupStats& medium() const;
68 const ZRelocationSetSelectorGroupStats& large() const;
69 };
70
71 class ZRelocationSetSelectorGroup {
72 private:
73 const char* const _name;
74 const size_t _page_size;
75 const size_t _object_size_limit;
76 const size_t _fragmentation_limit;
77
78 ZArray<ZPage*> _registered_pages;
79 ZPage** _sorted_pages;
80 size_t _nselected;
81 ZRelocationSetSelectorGroupStats _stats;
82
83 void semi_sort();
84
85 public:
86 ZRelocationSetSelectorGroup(const char* name,
87 size_t page_size,
88 size_t object_size_limit);
89 ~ZRelocationSetSelectorGroup();
90
91 void register_live_page(ZPage* page);
92 void register_garbage_page(ZPage* page);
93 void select();
94
95 ZPage* const* selected() const;
96 size_t nselected() const;
97
98 const ZRelocationSetSelectorGroupStats& stats() const;
99 };
100
101 class ZRelocationSetSelector : public StackObj {
102 private:
103 ZRelocationSetSelectorGroup _small;
104 ZRelocationSetSelectorGroup _medium;
105 ZRelocationSetSelectorGroup _large;
106
107 public:
108 ZRelocationSetSelector();
109
110 void register_live_page(ZPage* page);
111 void register_garbage_page(ZPage* page);
112 void select(ZRelocationSet* relocation_set);
113
114 ZRelocationSetSelectorStats stats() const;
115 };
116
117 #endif // SHARE_GC_Z_ZRELOCATIONSETSELECTOR_HPP
|