1 /*
2 * Copyright (c) 2007, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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 *
42 size_t used_in_bytes() { return _old_gen->used_in_bytes(); }
43 size_t max_size() const { return _old_gen->reserved().byte_size(); }
44 };
45
46 class EdenMutableSpacePool : public CollectedMemoryPool {
47 private:
48 PSYoungGen* _young_gen;
49 MutableSpace* _space;
50
51 public:
52 EdenMutableSpacePool(PSYoungGen* young_gen,
53 MutableSpace* space,
54 const char* name,
55 bool support_usage_threshold);
56
57 MutableSpace* space() { return _space; }
58 MemoryUsage get_memory_usage();
59 size_t used_in_bytes() { return space()->used_in_bytes(); }
60 size_t max_size() const {
61 // Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces
62 return _young_gen->max_size() - _young_gen->from_space()->capacity_in_bytes() - _young_gen->to_space()->capacity_in_bytes();
63 }
64 };
65
66 class SurvivorMutableSpacePool : public CollectedMemoryPool {
67 private:
68 PSYoungGen* _young_gen;
69
70 public:
71 SurvivorMutableSpacePool(PSYoungGen* young_gen,
72 const char* name,
73 bool support_usage_threshold);
74
75 MemoryUsage get_memory_usage();
76
77 size_t used_in_bytes() {
78 return _young_gen->from_space()->used_in_bytes();
79 }
80 size_t committed_in_bytes() {
81 return _young_gen->from_space()->capacity_in_bytes();
82 }
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1 /*
2 * Copyright (c) 2007, 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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 *
42 size_t used_in_bytes() { return _old_gen->used_in_bytes(); }
43 size_t max_size() const { return _old_gen->reserved().byte_size(); }
44 };
45
46 class EdenMutableSpacePool : public CollectedMemoryPool {
47 private:
48 PSYoungGen* _young_gen;
49 MutableSpace* _space;
50
51 public:
52 EdenMutableSpacePool(PSYoungGen* young_gen,
53 MutableSpace* space,
54 const char* name,
55 bool support_usage_threshold);
56
57 MutableSpace* space() { return _space; }
58 MemoryUsage get_memory_usage();
59 size_t used_in_bytes() { return space()->used_in_bytes(); }
60 size_t max_size() const {
61 // Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces
62 return _young_gen->max_gen_size() -
63 _young_gen->from_space()->capacity_in_bytes() -
64 _young_gen->to_space()->capacity_in_bytes();
65 }
66 };
67
68 class SurvivorMutableSpacePool : public CollectedMemoryPool {
69 private:
70 PSYoungGen* _young_gen;
71
72 public:
73 SurvivorMutableSpacePool(PSYoungGen* young_gen,
74 const char* name,
75 bool support_usage_threshold);
76
77 MemoryUsage get_memory_usage();
78
79 size_t used_in_bytes() {
80 return _young_gen->from_space()->used_in_bytes();
81 }
82 size_t committed_in_bytes() {
83 return _young_gen->from_space()->capacity_in_bytes();
84 }
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