0 /*
1 * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 #include "precompiled.hpp"
25 #include "gc/parallel/mutableNUMASpace.hpp"
26 #include "gc/parallel/parallelScavengeHeap.hpp"
27 #include "gc/parallel/psMarkSweepDecorator.hpp"
28 #include "gc/parallel/psScavenge.hpp"
29 #include "gc/parallel/psYoungGen.hpp"
30 #include "gc/shared/gcUtil.hpp"
31 #include "gc/shared/spaceDecorator.hpp"
32 #include "logging/log.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "runtime/java.hpp"
35 #include "utilities/align.hpp"
36
37 PSYoungGen::PSYoungGen(size_t initial_size,
38 size_t min_size,
39 size_t max_size) :
40 _init_gen_size(initial_size),
41 _min_gen_size(min_size),
42 _max_gen_size(max_size)
43 {}
44
45 void PSYoungGen::initialize_virtual_space(ReservedSpace rs, size_t alignment) {
46 assert(_init_gen_size != 0, "Should have a finite size");
47 _virtual_space = new PSVirtualSpace(rs, alignment);
48 if (!virtual_space()->expand_by(_init_gen_size)) {
49 vm_exit_during_initialization("Could not reserve enough space for "
50 "object heap");
51 }
52 }
53
54 void PSYoungGen::initialize(ReservedSpace rs, size_t alignment) {
55 initialize_virtual_space(rs, alignment);
56 initialize_work();
57 }
58
59 void PSYoungGen::initialize_work() {
60
61 _reserved = MemRegion((HeapWord*)virtual_space()->low_boundary(),
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0 /*
1 * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 #include "precompiled.hpp"
25 #include "gc/parallel/mutableNUMASpace.hpp"
26 #include "gc/parallel/parallelScavengeHeap.hpp"
27 #include "gc/parallel/psMarkSweepDecorator.hpp"
28 #include "gc/parallel/psScavenge.hpp"
29 #include "gc/parallel/psYoungGen.hpp"
30 #include "gc/shared/gcUtil.hpp"
31 #include "gc/shared/spaceDecorator.hpp"
32 #include "logging/log.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "runtime/java.hpp"
35 #include "utilities/align.hpp"
36
37 PSYoungGen::PSYoungGen(size_t initial_size, size_t min_size, size_t max_size) :
38 _reserved(),
39 _virtual_space(NULL),
40 _eden_space(NULL),
41 _from_space(NULL),
42 _to_space(NULL),
43 _eden_mark_sweep(NULL),
44 _from_mark_sweep(NULL),
45 _to_mark_sweep(NULL),
46 _init_gen_size(initial_size),
47 _min_gen_size(min_size),
48 _max_gen_size(max_size),
49 _gen_counters(NULL),
50 _eden_counters(NULL),
51 _from_counters(NULL),
52 _to_counters(NULL)
53 {}
54
55 void PSYoungGen::initialize_virtual_space(ReservedSpace rs, size_t alignment) {
56 assert(_init_gen_size != 0, "Should have a finite size");
57 _virtual_space = new PSVirtualSpace(rs, alignment);
58 if (!virtual_space()->expand_by(_init_gen_size)) {
59 vm_exit_during_initialization("Could not reserve enough space for "
60 "object heap");
61 }
62 }
63
64 void PSYoungGen::initialize(ReservedSpace rs, size_t alignment) {
65 initialize_virtual_space(rs, alignment);
66 initialize_work();
67 }
68
69 void PSYoungGen::initialize_work() {
70
71 _reserved = MemRegion((HeapWord*)virtual_space()->low_boundary(),
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