Mercurial > hg > graal-compiler

annotate src/share/vm/memory/metaspace.cpp @ 7446:e51c9860cf66

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders Reviewed-by: johnc, coleenp
author jmasa
date Mon, 03 Dec 2012 15:09:39 -0800
parents c71879335291
children 1de1b145f6bc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1 /*
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
4 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
7 * published by the Free Software Foundation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
8 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
13 * accompanied this code).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
14 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
18 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
21 * questions.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
22 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
23 */
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
24 #include "precompiled.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
25 #include "gc_interface/collectedHeap.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
26 #include "memory/binaryTreeDictionary.hpp"
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
27 #include "memory/freeList.hpp"
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
28 #include "memory/collectorPolicy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
29 #include "memory/filemap.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
30 #include "memory/freeList.hpp"
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
31 #include "memory/metablock.hpp"
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
32 #include "memory/metachunk.hpp"
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
33 #include "memory/metaspace.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
34 #include "memory/metaspaceShared.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
35 #include "memory/resourceArea.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
36 #include "memory/universe.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
37 #include "runtime/globals.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
38 #include "runtime/mutex.hpp"
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
39 #include "runtime/orderAccess.hpp"
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
40 #include "services/memTracker.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
41 #include "utilities/copy.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
42 #include "utilities/debug.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
43
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
44 typedef BinaryTreeDictionary<Metablock, FreeList> BlockTreeDictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
45 typedef BinaryTreeDictionary<Metachunk, FreeList> ChunkTreeDictionary;
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
46 // Define this macro to enable slow integrity checking of
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
47 // the free chunk lists
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
48 const bool metaspace_slow_verify = false;
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
49
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
50
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
51 // Parameters for stress mode testing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
52 const uint metadata_deallocate_a_lot_block = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
53 const uint metadata_deallocate_a_lock_chunk = 3;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
54 size_t const allocation_from_dictionary_limit = 64 * K;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
55 const size_t metadata_deallocate = 0xf5f5f5f5;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
56
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
57 MetaWord* last_allocated = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
58
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
59 // Used in declarations in SpaceManager and ChunkManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
60 enum ChunkIndex {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
61 ZeroIndex = 0,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
62 SpecializedIndex = ZeroIndex,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
63 SmallIndex = SpecializedIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
64 MediumIndex = SmallIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
65 HumongousIndex = MediumIndex + 1,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
66 NumberOfFreeLists = 3,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
67 NumberOfInUseLists = 4
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
68 };
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
69
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
70 enum ChunkSizes { // in words.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
71 ClassSpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
72 SpecializedChunk = 128,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
73 ClassSmallChunk = 256,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
74 SmallChunk = 512,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
75 ClassMediumChunk = 1 * K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
76 MediumChunk = 8 * K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
77 HumongousChunkGranularity = 8
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
78 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
79
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
80 static ChunkIndex next_chunk_index(ChunkIndex i) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
81 assert(i < NumberOfInUseLists, "Out of bound");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
82 return (ChunkIndex) (i+1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
83 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
84
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
85 // Originally _capacity_until_GC was set to MetaspaceSize here but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
86 // the default MetaspaceSize before argument processing was being
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
87 // used which was not the desired value. See the code
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
88 // in should_expand() to see how the initialization is handled
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
89 // now.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
90 size_t MetaspaceGC::_capacity_until_GC = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
91 bool MetaspaceGC::_expand_after_GC = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
92 uint MetaspaceGC::_shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
93 bool MetaspaceGC::_should_concurrent_collect = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
94
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
95 // Blocks of space for metadata are allocated out of Metachunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
96 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
97 // Metachunk are allocated out of MetadataVirtualspaces and once
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
98 // allocated there is no explicit link between a Metachunk and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
99 // the MetadataVirtualspaces from which it was allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
100 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
101 // Each SpaceManager maintains a
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
102 // list of the chunks it is using and the current chunk. The current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
103 // chunk is the chunk from which allocations are done. Space freed in
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
104 // a chunk is placed on the free list of blocks (BlockFreelist) and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
105 // reused from there.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
106
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
107 // Pointer to list of Metachunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
108 class ChunkList VALUE_OBJ_CLASS_SPEC {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
109 // List of free chunks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
110 Metachunk* _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
111
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
112 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
113 // Constructor
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
114 ChunkList() : _head(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
115
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
116 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
117 Metachunk* head() { return _head; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
118 void set_head(Metachunk* v) { _head = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
119
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
120 // Link at head of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
121 void add_at_head(Metachunk* head, Metachunk* tail);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
122 void add_at_head(Metachunk* head);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
123
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
124 size_t sum_list_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
125 size_t sum_list_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
126 size_t sum_list_capacity();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
127 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
128
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
129 // Manages the global free lists of chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
130 // Has three lists of free chunks, and a total size and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
131 // count that includes all three
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
132
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
133 class ChunkManager VALUE_OBJ_CLASS_SPEC {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
134
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
135 // Free list of chunks of different sizes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
136 // SmallChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
137 // MediumChunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
138 // HumongousChunk
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
139 ChunkList _free_chunks[NumberOfFreeLists];
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
140
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
141
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
142 // HumongousChunk
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
143 ChunkTreeDictionary _humongous_dictionary;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
144
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
145 // ChunkManager in all lists of this type
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
146 size_t _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
147 size_t _free_chunks_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
148
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
149 void dec_free_chunks_total(size_t v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
150 assert(_free_chunks_count > 0 &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
151 _free_chunks_total > 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
152 "About to go negative");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
153 Atomic::add_ptr(-1, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
154 jlong minus_v = (jlong) - (jlong) v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
155 Atomic::add_ptr(minus_v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
156 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
157
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
158 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
159
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
160 size_t sum_free_chunks();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
161 size_t sum_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
162
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
163 void locked_verify_free_chunks_total();
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
164 void slow_locked_verify_free_chunks_total() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
165 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
166 locked_verify_free_chunks_total();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
167 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
168 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
169 void locked_verify_free_chunks_count();
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
170 void slow_locked_verify_free_chunks_count() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
171 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
172 locked_verify_free_chunks_count();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
173 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
174 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
175 void verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
176
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
177 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
178
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
179 ChunkManager() : _free_chunks_total(0), _free_chunks_count(0) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
180
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
181 // add or delete (return) a chunk to the global freelist.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
182 Metachunk* chunk_freelist_allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
183 void chunk_freelist_deallocate(Metachunk* chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
184
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
185 // Map a size to a list index assuming that there are lists
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
186 // for special, small, medium, and humongous chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
187 static ChunkIndex list_index(size_t size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
188
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
189 // Total of the space in the free chunks list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
190 size_t free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
191 size_t free_chunks_total_in_bytes();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
192
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
193 // Number of chunks in the free chunks list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
194 size_t free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
195
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
196 void inc_free_chunks_total(size_t v, size_t count = 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
197 Atomic::add_ptr(count, &_free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
198 Atomic::add_ptr(v, &_free_chunks_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
199 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
200 ChunkTreeDictionary* humongous_dictionary() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
201 return &_humongous_dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
202 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
203
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
204 ChunkList* free_chunks(ChunkIndex index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
205
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
206 // Returns the list for the given chunk word size.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
207 ChunkList* find_free_chunks_list(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
208
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
209 // Add and remove from a list by size. Selects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
210 // list based on size of chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
211 void free_chunks_put(Metachunk* chuck);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
212 Metachunk* free_chunks_get(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
213
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
214 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
215 void verify();
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
216 void slow_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
217 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
218 verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
219 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
220 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
221 void locked_verify();
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
222 void slow_locked_verify() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
223 if (metaspace_slow_verify) {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
224 locked_verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
225 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
226 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
227 void verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
228
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
229 void locked_print_free_chunks(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
230 void locked_print_sum_free_chunks(outputStream* st);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
231
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
232 void print_on(outputStream* st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
233 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
234
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
235
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
236 // Used to manage the free list of Metablocks (a block corresponds
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
237 // to the allocation of a quantum of metadata).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
238 class BlockFreelist VALUE_OBJ_CLASS_SPEC {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
239 BlockTreeDictionary* _dictionary;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
240 static Metablock* initialize_free_chunk(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
241
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
242 // Accessors
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
243 BlockTreeDictionary* dictionary() const { return _dictionary; }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
244
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
245 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
246 BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
247 ~BlockFreelist();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
248
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
249 // Get and return a block to the free list
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
250 MetaWord* get_block(size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
251 void return_block(MetaWord* p, size_t word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
252
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
253 size_t total_size() {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
254 if (dictionary() == NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
255 return 0;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
256 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
257 return dictionary()->total_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
258 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
259 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
260
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
261 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
262 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
263
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
264 class VirtualSpaceNode : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
265 friend class VirtualSpaceList;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
266
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
267 // Link to next VirtualSpaceNode
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
268 VirtualSpaceNode* _next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
269
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
270 // total in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
271 MemRegion _reserved;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
272 ReservedSpace _rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
273 VirtualSpace _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
274 MetaWord* _top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
275
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
276 // Convenience functions for logical bottom and end
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
277 MetaWord* bottom() const { return (MetaWord*) _virtual_space.low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
278 MetaWord* end() const { return (MetaWord*) _virtual_space.high(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
279
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
280 // Convenience functions to access the _virtual_space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
281 char* low() const { return virtual_space()->low(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
282 char* high() const { return virtual_space()->high(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
283
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
284 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
285
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
286 VirtualSpaceNode(size_t byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
287 VirtualSpaceNode(ReservedSpace rs) : _top(NULL), _next(NULL), _rs(rs) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
288 ~VirtualSpaceNode();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
289
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
290 // address of next available space in _virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
291 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
292 VirtualSpaceNode* next() { return _next; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
293 void set_next(VirtualSpaceNode* v) { _next = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
294
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
295 void set_reserved(MemRegion const v) { _reserved = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
296 void set_top(MetaWord* v) { _top = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
297
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
298 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
299 MemRegion* reserved() { return &_reserved; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
300 VirtualSpace* virtual_space() const { return (VirtualSpace*) &_virtual_space; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
301
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
302 // Returns true if "word_size" is available in the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
303 bool is_available(size_t word_size) { return _top + word_size <= end(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
304
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
305 MetaWord* top() const { return _top; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
306 void inc_top(size_t word_size) { _top += word_size; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
307
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
308 // used and capacity in this single entry in the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
309 size_t used_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
310 size_t capacity_words_in_vs() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
311
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
312 bool initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
313
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
314 // get space from the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
315 Metachunk* take_from_committed(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
316
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
317 // Allocate a chunk from the virtual space and return it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
318 Metachunk* get_chunk_vs(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
319 Metachunk* get_chunk_vs_with_expand(size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
320
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
321 // Expands/shrinks the committed space in a virtual space. Delegates
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
322 // to Virtualspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
323 bool expand_by(size_t words, bool pre_touch = false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
324 bool shrink_by(size_t words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
325
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
326 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
327 // Debug support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
328 static void verify_virtual_space_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
329 static void verify_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
330 void mangle();
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
331 #endif
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
332
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
333 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
334 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
335
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
336 // byte_size is the size of the associated virtualspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
337 VirtualSpaceNode::VirtualSpaceNode(size_t byte_size) : _top(NULL), _next(NULL), _rs(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
338 // This allocates memory with mmap. For DumpSharedspaces, allocate the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
339 // space at low memory so that other shared images don't conflict.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
340 // This is the same address as memory needed for UseCompressedOops but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
341 // compressed oops don't work with CDS (offsets in metadata are wrong), so
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
342 // borrow the same address.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
343 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
344 char* shared_base = (char*)HeapBaseMinAddress;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
345 _rs = ReservedSpace(byte_size, 0, false, shared_base, 0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
346 if (_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
347 assert(_rs.base() == shared_base, "should match");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
348 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
349 // If we are dumping the heap, then allocate a wasted block of address
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
350 // space in order to push the heap to a lower address. This extra
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
351 // address range allows for other (or larger) libraries to be loaded
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
352 // without them occupying the space required for the shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
353 uintx reserved = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
354 uintx block_size = 64*1024*1024;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
355 while (reserved < SharedDummyBlockSize) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
356 char* dummy = os::reserve_memory(block_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
357 reserved += block_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
358 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
359 _rs = ReservedSpace(byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
360 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
361 MetaspaceShared::set_shared_rs(&_rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
362 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
363 _rs = ReservedSpace(byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
364 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
365
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
366 MemTracker::record_virtual_memory_type((address)_rs.base(), mtClass);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
367 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
368
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
369 // List of VirtualSpaces for metadata allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
370 // It has a _next link for singly linked list and a MemRegion
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
371 // for total space in the VirtualSpace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
372 class VirtualSpaceList : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
373 friend class VirtualSpaceNode;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
374
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
375 enum VirtualSpaceSizes {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
376 VirtualSpaceSize = 256 * K
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
377 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
378
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
379 // Global list of virtual spaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
380 // Head of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
381 VirtualSpaceNode* _virtual_space_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
382 // virtual space currently being used for allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
383 VirtualSpaceNode* _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
384 // Free chunk list for all other metadata
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
385 ChunkManager _chunk_manager;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
386
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
387 // Can this virtual list allocate >1 spaces? Also, used to determine
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
388 // whether to allocate unlimited small chunks in this virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
389 bool _is_class;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
390 bool can_grow() const { return !is_class() || !UseCompressedKlassPointers; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
391
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
392 // Sum of space in all virtual spaces and number of virtual spaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
393 size_t _virtual_space_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
394 size_t _virtual_space_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
395
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
396 ~VirtualSpaceList();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
397
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
398 VirtualSpaceNode* virtual_space_list() const { return _virtual_space_list; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
399
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
400 void set_virtual_space_list(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
401 _virtual_space_list = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
402 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
403 void set_current_virtual_space(VirtualSpaceNode* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
404 _current_virtual_space = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
405 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
406
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
407 void link_vs(VirtualSpaceNode* new_entry, size_t vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
408
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
409 // Get another virtual space and add it to the list. This
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
410 // is typically prompted by a failed attempt to allocate a chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
411 // and is typically followed by the allocation of a chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
412 bool grow_vs(size_t vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
413
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
414 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
415 VirtualSpaceList(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
416 VirtualSpaceList(ReservedSpace rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
417
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
418 Metachunk* get_new_chunk(size_t word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
419 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
420 size_t medium_chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
421
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
422 // Get the first chunk for a Metaspace. Used for
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
423 // special cases such as the boot class loader, reflection
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
424 // class loader and anonymous class loader.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
425 Metachunk* get_initialization_chunk(size_t word_size, size_t chunk_bunch);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
426
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
427 VirtualSpaceNode* current_virtual_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
428 return _current_virtual_space;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
429 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
430
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
431 ChunkManager* chunk_manager() { return &_chunk_manager; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
432 bool is_class() const { return _is_class; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
433
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
434 // Allocate the first virtualspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
435 void initialize(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
436
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
437 size_t virtual_space_total() { return _virtual_space_total; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
438 void inc_virtual_space_total(size_t v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
439 Atomic::add_ptr(v, &_virtual_space_total);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
440 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
441
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
442 size_t virtual_space_count() { return _virtual_space_count; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
443 void inc_virtual_space_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
444 Atomic::inc_ptr(&_virtual_space_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
445 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
446
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
447 // Used and capacity in the entire list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
448 // These are global values shared by all Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
449 size_t capacity_words_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
450 size_t capacity_bytes_sum() { return capacity_words_sum() * BytesPerWord; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
451 size_t used_words_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
452 size_t used_bytes_sum() { return used_words_sum() * BytesPerWord; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
453
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
454 bool contains(const void *ptr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
455
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
456 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
457
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
458 class VirtualSpaceListIterator : public StackObj {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
459 VirtualSpaceNode* _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
460 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
461 VirtualSpaceListIterator(VirtualSpaceNode* virtual_spaces) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
462 _virtual_spaces(virtual_spaces) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
463
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
464 bool repeat() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
465 return _virtual_spaces != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
466 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
467
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
468 VirtualSpaceNode* get_next() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
469 VirtualSpaceNode* result = _virtual_spaces;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
470 if (_virtual_spaces != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
471 _virtual_spaces = _virtual_spaces->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
472 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
473 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
474 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
475 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
476 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
477
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
478 class Metadebug : AllStatic {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
479 // Debugging support for Metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
480 static int _deallocate_block_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
481 static int _deallocate_chunk_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
482 static int _allocation_fail_alot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
483
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
484 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
485 static int deallocate_block_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
486 return _deallocate_block_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
487 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
488 static void set_deallocate_block_a_lot_count(int v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
489 _deallocate_block_a_lot_count = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
490 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
491 static void inc_deallocate_block_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
492 _deallocate_block_a_lot_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
493 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
494 static int deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
495 return _deallocate_chunk_a_lot_count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
496 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
497 static void reset_deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
498 _deallocate_chunk_a_lot_count = 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
499 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
500 static void inc_deallocate_chunk_a_lot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
501 _deallocate_chunk_a_lot_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
502 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
503
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
504 static void init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
505 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
506 static bool test_metadata_failure();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
507 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
508
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
509 static void deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
510 size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
511 static void deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
512 size_t chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
513
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
514 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
515
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
516 int Metadebug::_deallocate_block_a_lot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
517 int Metadebug::_deallocate_chunk_a_lot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
518 int Metadebug::_allocation_fail_alot_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
519
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
520 // SpaceManager - used by Metaspace to handle allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
521 class SpaceManager : public CHeapObj<mtClass> {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
522 friend class Metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
523 friend class Metadebug;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
524
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
525 private:
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
526
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
527 // protects allocations and contains.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
528 Mutex* const _lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
529
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
530 // Chunk related size
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
531 size_t _medium_chunk_bunch;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
532
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
533 // List of chunks in use by this SpaceManager. Allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
534 // are done from the current chunk. The list is used for deallocating
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
535 // chunks when the SpaceManager is freed.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
536 Metachunk* _chunks_in_use[NumberOfInUseLists];
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
537 Metachunk* _current_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
538
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
539 // Virtual space where allocation comes from.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
540 VirtualSpaceList* _vs_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
541
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
542 // Number of small chunks to allocate to a manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
543 // If class space manager, small chunks are unlimited
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
544 static uint const _small_chunk_limit;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
545 bool has_small_chunk_limit() { return !vs_list()->is_class(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
546
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
547 // Sum of all space in allocated chunks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
548 size_t _allocation_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
549
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
550 // Free lists of blocks are per SpaceManager since they
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
551 // are assumed to be in chunks in use by the SpaceManager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
552 // and all chunks in use by a SpaceManager are freed when
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
553 // the class loader using the SpaceManager is collected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
554 BlockFreelist _block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
555
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
556 // protects virtualspace and chunk expansions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
557 static const char* _expand_lock_name;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
558 static const int _expand_lock_rank;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
559 static Mutex* const _expand_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
560
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
561 private:
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
562 // Accessors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
563 Metachunk* chunks_in_use(ChunkIndex index) const { return _chunks_in_use[index]; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
564 void set_chunks_in_use(ChunkIndex index, Metachunk* v) { _chunks_in_use[index] = v; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
565
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
566 BlockFreelist* block_freelists() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
567 return (BlockFreelist*) &_block_freelists;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
568 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
569
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
570 VirtualSpaceList* vs_list() const { return _vs_list; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
571
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
572 Metachunk* current_chunk() const { return _current_chunk; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
573 void set_current_chunk(Metachunk* v) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
574 _current_chunk = v;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
575 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
576
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
577 Metachunk* find_current_chunk(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
578
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
579 // Add chunk to the list of chunks in use
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
580 void add_chunk(Metachunk* v, bool make_current);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
581
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
582 Mutex* lock() const { return _lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
583
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
584 const char* chunk_size_name(ChunkIndex index) const;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
585
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
586 protected:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
587 void initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
588
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
589 public:
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
590 SpaceManager(Mutex* lock,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
591 VirtualSpaceList* vs_list);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
592 ~SpaceManager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
593
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
594 enum ChunkMultiples {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
595 MediumChunkMultiple = 4
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
596 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
597
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
598 // Accessors
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
599 size_t specialized_chunk_size() { return SpecializedChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
600 size_t small_chunk_size() { return (size_t) vs_list()->is_class() ? ClassSmallChunk : SmallChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
601 size_t medium_chunk_size() { return (size_t) vs_list()->is_class() ? ClassMediumChunk : MediumChunk; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
602 size_t medium_chunk_bunch() { return medium_chunk_size() * MediumChunkMultiple; }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
603
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
604 size_t allocation_total() const { return _allocation_total; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
605 void inc_allocation_total(size_t v) { Atomic::add_ptr(v, &_allocation_total); }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
606 bool is_humongous(size_t word_size) { return word_size > medium_chunk_size(); }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
607
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
608 static Mutex* expand_lock() { return _expand_lock; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
609
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
610 // Set the sizes for the initial chunks.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
611 void get_initial_chunk_sizes(Metaspace::MetaspaceType type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
612 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
613 size_t* class_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
614
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
615 size_t sum_capacity_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
616 size_t sum_used_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
617 size_t sum_free_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
618 size_t sum_waste_in_chunks_in_use() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
619 size_t sum_waste_in_chunks_in_use(ChunkIndex index ) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
620
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
621 size_t sum_count_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
622 size_t sum_count_in_chunks_in_use(ChunkIndex i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
623
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
624 Metachunk* get_new_chunk(size_t word_size, size_t grow_chunks_by_words);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
625
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
626 // Block allocation and deallocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
627 // Allocates a block from the current chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
628 MetaWord* allocate(size_t word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
629
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
630 // Helper for allocations
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
631 MetaWord* allocate_work(size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
632
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
633 // Returns a block to the per manager freelist
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
634 void deallocate(MetaWord* p, size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
635
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
636 // Based on the allocation size and a minimum chunk size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
637 // returned chunk size (for expanding space for chunk allocation).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
638 size_t calc_chunk_size(size_t allocation_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
639
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
640 // Called when an allocation from the current chunk fails.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
641 // Gets a new chunk (may require getting a new virtual space),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
642 // and allocates from that chunk.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
643 MetaWord* grow_and_allocate(size_t word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
644
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
645 // debugging support.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
646
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
647 void dump(outputStream* const out) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
648 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
649 void locked_print_chunks_in_use_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
650
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
651 void verify();
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
652 void verify_chunk_size(Metachunk* chunk);
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
653 NOT_PRODUCT(void mangle_freed_chunks();)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
654 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
655 void verify_allocation_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
656 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
657 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
658
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
659 uint const SpaceManager::_small_chunk_limit = 4;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
660
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
661 const char* SpaceManager::_expand_lock_name =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
662 "SpaceManager chunk allocation lock";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
663 const int SpaceManager::_expand_lock_rank = Monitor::leaf - 1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
664 Mutex* const SpaceManager::_expand_lock =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
665 new Mutex(SpaceManager::_expand_lock_rank,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
666 SpaceManager::_expand_lock_name,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
667 Mutex::_allow_vm_block_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
668
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
669 // BlockFreelist methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
670
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
671 BlockFreelist::BlockFreelist() : _dictionary(NULL) {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
672
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
673 BlockFreelist::~BlockFreelist() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
674 if (_dictionary != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
675 if (Verbose && TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
676 _dictionary->print_free_lists(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
677 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
678 delete _dictionary;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
679 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
680 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
681
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
682 Metablock* BlockFreelist::initialize_free_chunk(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
683 Metablock* block = (Metablock*) p;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
684 block->set_word_size(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
685 block->set_prev(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
686 block->set_next(NULL);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
687
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
688 return block;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
689 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
690
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
691 void BlockFreelist::return_block(MetaWord* p, size_t word_size) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
692 Metablock* free_chunk = initialize_free_chunk(p, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
693 if (dictionary() == NULL) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
694 _dictionary = new BlockTreeDictionary();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
695 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
696 dictionary()->return_chunk(free_chunk);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
697 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
698
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
699 MetaWord* BlockFreelist::get_block(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
700 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
701 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
702 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
703
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
704 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
705 // Dark matter. Too small for dictionary.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
706 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
707 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
708
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
709 Metablock* free_block =
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
710 dictionary()->get_chunk(word_size, FreeBlockDictionary<Metablock>::exactly);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
711 if (free_block == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
712 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
713 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
714
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
715 return (MetaWord*) free_block;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
716 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
717
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
718 void BlockFreelist::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
719 if (dictionary() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
720 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
721 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
722 dictionary()->print_free_lists(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
723 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
724
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
725 // VirtualSpaceNode methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
726
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
727 VirtualSpaceNode::~VirtualSpaceNode() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
728 _rs.release();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
729 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
730
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
731 size_t VirtualSpaceNode::used_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
732 return pointer_delta(top(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
733 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
734
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
735 // Space committed in the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
736 size_t VirtualSpaceNode::capacity_words_in_vs() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
737 return pointer_delta(end(), bottom(), sizeof(MetaWord));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
738 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
739
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
740
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
741 // Allocates the chunk from the virtual space only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
742 // This interface is also used internally for debugging. Not all
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
743 // chunks removed here are necessarily used for allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
744 Metachunk* VirtualSpaceNode::take_from_committed(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
745 // Bottom of the new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
746 MetaWord* chunk_limit = top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
747 assert(chunk_limit != NULL, "Not safe to call this method");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
748
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
749 if (!is_available(chunk_word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
750 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
751 tty->print("VirtualSpaceNode::take_from_committed() not available %d words ", chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
752 // Dump some information about the virtual space that is nearly full
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
753 print_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
754 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
755 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
756 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
757
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
758 // Take the space (bump top on the current virtual space).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
759 inc_top(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
760
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
761 // Point the chunk at the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
762 Metachunk* result = Metachunk::initialize(chunk_limit, chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
763 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
764 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
765
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
766
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
767 // Expand the virtual space (commit more of the reserved space)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
768 bool VirtualSpaceNode::expand_by(size_t words, bool pre_touch) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
769 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
770 bool result = virtual_space()->expand_by(bytes, pre_touch);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
771 if (TraceMetavirtualspaceAllocation && !result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
772 gclog_or_tty->print_cr("VirtualSpaceNode::expand_by() failed "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
773 "for byte size " SIZE_FORMAT, bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
774 virtual_space()->print();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
775 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
776 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
777 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
778
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
779 // Shrink the virtual space (commit more of the reserved space)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
780 bool VirtualSpaceNode::shrink_by(size_t words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
781 size_t bytes = words * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
782 virtual_space()->shrink_by(bytes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
783 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
784 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
785
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
786 // Add another chunk to the chunk list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
787
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
788 Metachunk* VirtualSpaceNode::get_chunk_vs(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
789 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
790 Metachunk* result = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
791
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
792 return take_from_committed(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
793 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
794
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
795 Metachunk* VirtualSpaceNode::get_chunk_vs_with_expand(size_t chunk_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
796 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
797
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
798 Metachunk* new_chunk = get_chunk_vs(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
799
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
800 if (new_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
801 // Only a small part of the virtualspace is committed when first
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
802 // allocated so committing more here can be expected.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
803 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
804 size_t aligned_expand_vs_by_words = align_size_up(chunk_word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
805 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
806 expand_by(aligned_expand_vs_by_words, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
807 new_chunk = get_chunk_vs(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
808 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
809 return new_chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
810 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
811
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
812 bool VirtualSpaceNode::initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
813
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
814 if (!_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
815 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
816 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
817
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
818 // An allocation out of this Virtualspace that is larger
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
819 // than an initial commit size can waste that initial committed
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
820 // space.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
821 size_t committed_byte_size = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
822 bool result = virtual_space()->initialize(_rs, committed_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
823 if (result) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
824 set_top((MetaWord*)virtual_space()->low());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
825 set_reserved(MemRegion((HeapWord*)_rs.base(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
826 (HeapWord*)(_rs.base() + _rs.size())));
6726
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
827
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
828 assert(reserved()->start() == (HeapWord*) _rs.base(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
829 err_msg("Reserved start was not set properly " PTR_FORMAT
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
830 " != " PTR_FORMAT, reserved()->start(), _rs.base()));
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
831 assert(reserved()->word_size() == _rs.size() / BytesPerWord,
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
832 err_msg("Reserved size was not set properly " SIZE_FORMAT
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
833 " != " SIZE_FORMAT, reserved()->word_size(),
03049e0e8544 7195823: NPG: CMS reserved() doesn't match _rs.base().
coleenp
parents: 6725
diff changeset
834 _rs.size() / BytesPerWord));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
835 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
836
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
837 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
838 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
839
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
840 void VirtualSpaceNode::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
841 size_t used = used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
842 size_t capacity = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
843 VirtualSpace* vs = virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
844 st->print_cr(" space @ " PTR_FORMAT " " SIZE_FORMAT "K, %3d%% used "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
845 "[" PTR_FORMAT ", " PTR_FORMAT ", "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
846 PTR_FORMAT ", " PTR_FORMAT ")",
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
847 vs, capacity / K,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
848 capacity == 0 ? 0 : used * 100 / capacity,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
849 bottom(), top(), end(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
850 vs->high_boundary());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
851 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
852
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
853 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
854 void VirtualSpaceNode::mangle() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
855 size_t word_size = capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
856 Copy::fill_to_words((HeapWord*) low(), word_size, 0xf1f1f1f1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
857 }
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
858 #endif // ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
859
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
860 // VirtualSpaceList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
861 // Space allocated from the VirtualSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
862
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
863 VirtualSpaceList::~VirtualSpaceList() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
864 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
865 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
866 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
867 delete vsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
868 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
869 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
870
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
871 size_t VirtualSpaceList::used_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
872 size_t allocated_by_vs = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
873 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
874 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
875 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
876 // Sum used region [bottom, top) in each virtualspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
877 allocated_by_vs += vsl->used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
878 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
879 assert(allocated_by_vs >= chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
880 err_msg("Total in free chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
881 " greater than total from virtual_spaces " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
882 allocated_by_vs, chunk_manager()->free_chunks_total()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
883 size_t used =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
884 allocated_by_vs - chunk_manager()->free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
885 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
886 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
887
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
888 // Space available in all MetadataVirtualspaces allocated
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
889 // for metadata. This is the upper limit on the capacity
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
890 // of chunks allocated out of all the MetadataVirtualspaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
891 size_t VirtualSpaceList::capacity_words_sum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
892 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
893 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
894 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
895 VirtualSpaceNode* vsl = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
896 capacity += vsl->capacity_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
897 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
898 return capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
899 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
900
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
901 VirtualSpaceList::VirtualSpaceList(size_t word_size ) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
902 _is_class(false),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
903 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
904 _current_virtual_space(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
905 _virtual_space_total(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
906 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
907 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
908 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
909 bool initialization_succeeded = grow_vs(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
910
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
911 assert(initialization_succeeded,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
912 " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
913 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
914
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
915 VirtualSpaceList::VirtualSpaceList(ReservedSpace rs) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
916 _is_class(true),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
917 _virtual_space_list(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
918 _current_virtual_space(NULL),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
919 _virtual_space_total(0),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
920 _virtual_space_count(0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
921 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
922 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
923 VirtualSpaceNode* class_entry = new VirtualSpaceNode(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
924 bool succeeded = class_entry->initialize();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
925 assert(succeeded, " VirtualSpaceList initialization should not fail");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
926 link_vs(class_entry, rs.size()/BytesPerWord);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
927 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
928
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
929 // Allocate another meta virtual space and add it to the list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
930 bool VirtualSpaceList::grow_vs(size_t vs_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
931 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
932 if (vs_word_size == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
933 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
934 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
935 // Reserve the space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
936 size_t vs_byte_size = vs_word_size * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
937 assert(vs_byte_size % os::vm_page_size() == 0, "Not aligned");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
938
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
939 // Allocate the meta virtual space and initialize it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
940 VirtualSpaceNode* new_entry = new VirtualSpaceNode(vs_byte_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
941 if (!new_entry->initialize()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
942 delete new_entry;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
943 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
944 } else {
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
945 // ensure lock-free iteration sees fully initialized node
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
946 OrderAccess::storestore();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
947 link_vs(new_entry, vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
948 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
949 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
950 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
951
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
952 void VirtualSpaceList::link_vs(VirtualSpaceNode* new_entry, size_t vs_word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
953 if (virtual_space_list() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
954 set_virtual_space_list(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
955 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
956 current_virtual_space()->set_next(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
957 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
958 set_current_virtual_space(new_entry);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
959 inc_virtual_space_total(vs_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
960 inc_virtual_space_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
961 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
962 new_entry->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
963 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
964 if (TraceMetavirtualspaceAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
965 VirtualSpaceNode* vsl = current_virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
966 vsl->print_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
967 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
968 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
969
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
970 Metachunk* VirtualSpaceList::get_new_chunk(size_t word_size,
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
971 size_t grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
972 size_t medium_chunk_bunch) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
973
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
974 // Get a chunk from the chunk freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
975 Metachunk* next = chunk_manager()->chunk_freelist_allocate(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
976
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
977 // Allocate a chunk out of the current virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
978 if (next == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
979 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
980 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
981
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
982 if (next == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
983 // Not enough room in current virtual space. Try to commit
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
984 // more space.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
985 size_t expand_vs_by_words = MAX2(medium_chunk_bunch,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
986 grow_chunks_by_words);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
987 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
988 size_t aligned_expand_vs_by_words = align_size_up(expand_vs_by_words,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
989 page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
990 bool vs_expanded =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
991 current_virtual_space()->expand_by(aligned_expand_vs_by_words, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
992 if (!vs_expanded) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
993 // Should the capacity of the metaspaces be expanded for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
994 // this allocation? If it's the virtual space for classes and is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
995 // being used for CompressedHeaders, don't allocate a new virtualspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
996 if (can_grow() && MetaspaceGC::should_expand(this, word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
997 // Get another virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
998 size_t grow_vs_words =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
999 MAX2((size_t)VirtualSpaceSize, aligned_expand_vs_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1000 if (grow_vs(grow_vs_words)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1001 // Got it. It's on the list now. Get a chunk from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1002 next = current_virtual_space()->get_chunk_vs_with_expand(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1003 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1004 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1005 // Allocation will fail and induce a GC
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1006 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1007 gclog_or_tty->print_cr("VirtualSpaceList::get_new_chunk():"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1008 " Fail instead of expand the metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1009 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1010 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1011 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1012 // The virtual space expanded, get a new chunk
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1013 next = current_virtual_space()->get_chunk_vs(grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1014 assert(next != NULL, "Just expanded, should succeed");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1015 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1016 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1017
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1018 assert(next == NULL || (next->next() == NULL && next->prev() == NULL),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1019 "New chunk is still on some list");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1020 return next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1021 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1022
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1023 Metachunk* VirtualSpaceList::get_initialization_chunk(size_t chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1024 size_t chunk_bunch) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1025 // Get a chunk from the chunk freelist
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1026 Metachunk* new_chunk = get_new_chunk(chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1027 chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1028 chunk_bunch);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1029 return new_chunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1030 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1031
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1032 void VirtualSpaceList::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1033 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1034 VirtualSpaceListIterator iter(virtual_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1035 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1036 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1037 node->print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1038 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1039 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1040 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1041
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1042 bool VirtualSpaceList::contains(const void *ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1043 VirtualSpaceNode* list = virtual_space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1044 VirtualSpaceListIterator iter(list);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1045 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1046 VirtualSpaceNode* node = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1047 if (node->reserved()->contains(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1048 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1049 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1050 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1051 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1052 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1053
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1054
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1055 // MetaspaceGC methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1056
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1057 // VM_CollectForMetadataAllocation is the vm operation used to GC.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1058 // Within the VM operation after the GC the attempt to allocate the metadata
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1059 // should succeed. If the GC did not free enough space for the metaspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1060 // allocation, the HWM is increased so that another virtualspace will be
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1061 // allocated for the metadata. With perm gen the increase in the perm
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1062 // gen had bounds, MinMetaspaceExpansion and MaxMetaspaceExpansion. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1063 // metaspace policy uses those as the small and large steps for the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1064 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1065 // After the GC the compute_new_size() for MetaspaceGC is called to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1066 // resize the capacity of the metaspaces. The current implementation
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1067 // is based on the flags MinHeapFreeRatio and MaxHeapFreeRatio used
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1068 // to resize the Java heap by some GC's. New flags can be implemented
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1069 // if really needed. MinHeapFreeRatio is used to calculate how much
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1070 // free space is desirable in the metaspace capacity to decide how much
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1071 // to increase the HWM. MaxHeapFreeRatio is used to decide how much
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1072 // free space is desirable in the metaspace capacity before decreasing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1073 // the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1074
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1075 // Calculate the amount to increase the high water mark (HWM).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1076 // Increase by a minimum amount (MinMetaspaceExpansion) so that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1077 // another expansion is not requested too soon. If that is not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1078 // enough to satisfy the allocation (i.e. big enough for a word_size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1079 // allocation), increase by MaxMetaspaceExpansion. If that is still
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1080 // not enough, expand by the size of the allocation (word_size) plus
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1081 // some.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1082 size_t MetaspaceGC::delta_capacity_until_GC(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1083 size_t before_inc = MetaspaceGC::capacity_until_GC();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1084 size_t min_delta_words = MinMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1085 size_t max_delta_words = MaxMetaspaceExpansion / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1086 size_t page_size_words = os::vm_page_size() / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1087 size_t size_delta_words = align_size_up(word_size, page_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1088 size_t delta_words = MAX2(size_delta_words, min_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1089 if (delta_words > min_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1090 // Don't want to hit the high water mark on the next
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1091 // allocation so make the delta greater than just enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1092 // for this allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1093 delta_words = MAX2(delta_words, max_delta_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1094 if (delta_words > max_delta_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1095 // This allocation is large but the next ones are probably not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1096 // so increase by the minimum.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1097 delta_words = delta_words + min_delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1098 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1099 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1100 return delta_words;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1101 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1102
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1103 bool MetaspaceGC::should_expand(VirtualSpaceList* vsl, size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1104
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1105 // Class virtual space should always be expanded. Call GC for the other
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1106 // metadata virtual space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1107 if (vsl == Metaspace::class_space_list()) return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1108
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1109 // If the user wants a limit, impose one.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1110 size_t max_metaspace_size_words = MaxMetaspaceSize / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1111 size_t metaspace_size_words = MetaspaceSize / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1112 if (!FLAG_IS_DEFAULT(MaxMetaspaceSize) &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1113 vsl->capacity_words_sum() >= max_metaspace_size_words) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1114 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1115 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1116
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1117 // If this is part of an allocation after a GC, expand
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1118 // unconditionally.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1119 if(MetaspaceGC::expand_after_GC()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1120 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1121 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1122
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1123 // If the capacity is below the minimum capacity, allow the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1124 // expansion. Also set the high-water-mark (capacity_until_GC)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1125 // to that minimum capacity so that a GC will not be induced
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1126 // until that minimum capacity is exceeded.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1127 if (vsl->capacity_words_sum() < metaspace_size_words ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1128 capacity_until_GC() == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1129 set_capacity_until_GC(metaspace_size_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1130 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1131 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1132 if (vsl->capacity_words_sum() < capacity_until_GC()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1133 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1134 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1135 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1136 gclog_or_tty->print_cr(" allocation request size " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1137 " capacity_until_GC " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1138 " capacity_words_sum " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1139 " used_words_sum " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1140 " free chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1141 " free chunks count %d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1142 word_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1143 capacity_until_GC(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1144 vsl->capacity_words_sum(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1145 vsl->used_words_sum(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1146 vsl->chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1147 vsl->chunk_manager()->free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1148 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1149 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1150 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1151 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1152 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1153
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1154 // Variables are in bytes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1155
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1156 void MetaspaceGC::compute_new_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1157 assert(_shrink_factor <= 100, "invalid shrink factor");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1158 uint current_shrink_factor = _shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1159 _shrink_factor = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1160
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1161 VirtualSpaceList *vsl = Metaspace::space_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1162
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1163 size_t capacity_after_gc = vsl->capacity_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1164 // Check to see if these two can be calculated without walking the CLDG
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1165 size_t used_after_gc = vsl->used_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1166 size_t capacity_until_GC = vsl->capacity_bytes_sum();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1167 size_t free_after_gc = capacity_until_GC - used_after_gc;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1168
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1169 const double minimum_free_percentage = MinHeapFreeRatio / 100.0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1170 const double maximum_used_percentage = 1.0 - minimum_free_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1171
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1172 const double min_tmp = used_after_gc / maximum_used_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1173 size_t minimum_desired_capacity =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1174 (size_t)MIN2(min_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1175 // Don't shrink less than the initial generation size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1176 minimum_desired_capacity = MAX2(minimum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1177 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1178
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1179 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1180 const double free_percentage = ((double)free_after_gc) / capacity_until_GC;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1181 gclog_or_tty->print_cr("\nMetaspaceGC::compute_new_size: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1182 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1183 " minimum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1184 " maximum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1185 minimum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1186 maximum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1187 double d_free_after_gc = free_after_gc / (double) K;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1188 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1189 " free_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1190 " used_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1191 " capacity_after_gc : %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1192 " metaspace HWM : %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1193 free_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1194 used_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1195 capacity_after_gc / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1196 capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1197 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1198 " free_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1199 free_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1200 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1201
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1202
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1203 if (capacity_until_GC < minimum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1204 // If we have less capacity below the metaspace HWM, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1205 // increment the HWM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1206 size_t expand_bytes = minimum_desired_capacity - capacity_until_GC;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1207 // Don't expand unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1208 if (expand_bytes >= MinMetaspaceExpansion) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1209 size_t expand_words = expand_bytes / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1210 MetaspaceGC::inc_capacity_until_GC(expand_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1211 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1212 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1213 size_t new_capacity_until_GC = MetaspaceGC::capacity_until_GC_in_bytes();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1214 gclog_or_tty->print_cr(" expanding:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1215 " minimum_desired_capacity: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1216 " expand_words: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1217 " MinMetaspaceExpansion: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1218 " new metaspace HWM: %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1219 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1220 expand_bytes / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1221 MinMetaspaceExpansion / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1222 new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1223 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1224 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1225 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1226
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1227 // No expansion, now see if we want to shrink
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1228 size_t shrink_words = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1229 // We would never want to shrink more than this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1230 size_t max_shrink_words = capacity_until_GC - minimum_desired_capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1231 assert(max_shrink_words >= 0, err_msg("max_shrink_words " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1232 max_shrink_words));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1233
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1234 // Should shrinking be considered?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1235 if (MaxHeapFreeRatio < 100) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1236 const double maximum_free_percentage = MaxHeapFreeRatio / 100.0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1237 const double minimum_used_percentage = 1.0 - maximum_free_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1238 const double max_tmp = used_after_gc / minimum_used_percentage;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1239 size_t maximum_desired_capacity = (size_t)MIN2(max_tmp, double(max_uintx));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1240 maximum_desired_capacity = MAX2(maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1241 MetaspaceSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1242 if (PrintGC && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1243 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1244 " maximum_free_percentage: %6.2f"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1245 " minimum_used_percentage: %6.2f",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1246 maximum_free_percentage,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1247 minimum_used_percentage);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1248 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1249 " capacity_until_GC: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1250 " minimum_desired_capacity: %6.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1251 " maximum_desired_capacity: %6.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1252 capacity_until_GC / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1253 minimum_desired_capacity / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1254 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1255 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1256
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1257 assert(minimum_desired_capacity <= maximum_desired_capacity,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1258 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1259
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1260 if (capacity_until_GC > maximum_desired_capacity) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1261 // Capacity too large, compute shrinking size
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1262 shrink_words = capacity_until_GC - maximum_desired_capacity;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1263 // We don't want shrink all the way back to initSize if people call
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1264 // System.gc(), because some programs do that between "phases" and then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1265 // we'd just have to grow the heap up again for the next phase. So we
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1266 // damp the shrinking: 0% on the first call, 10% on the second call, 40%
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1267 // on the third call, and 100% by the fourth call. But if we recompute
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1268 // size without shrinking, it goes back to 0%.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1269 shrink_words = shrink_words / 100 * current_shrink_factor;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1270 assert(shrink_words <= max_shrink_words,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1271 err_msg("invalid shrink size " SIZE_FORMAT " not <= " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1272 shrink_words, max_shrink_words));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1273 if (current_shrink_factor == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1274 _shrink_factor = 10;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1275 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1276 _shrink_factor = MIN2(current_shrink_factor * 4, (uint) 100);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1277 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1278 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1279 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1280 " shrinking:"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1281 " initSize: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1282 " maximum_desired_capacity: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1283 MetaspaceSize / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1284 maximum_desired_capacity / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1285 gclog_or_tty->print_cr(" "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1286 " shrink_words: %.1fK"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1287 " current_shrink_factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1288 " new shrink factor: %d"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1289 " MinMetaspaceExpansion: %.1fK",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1290 shrink_words / (double) K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1291 current_shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1292 _shrink_factor,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1293 MinMetaspaceExpansion / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1294 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1295 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1296 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1297
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1298
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1299 // Don't shrink unless it's significant
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1300 if (shrink_words >= MinMetaspaceExpansion) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1301 VirtualSpaceNode* csp = vsl->current_virtual_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1302 size_t available_to_shrink = csp->capacity_words_in_vs() -
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1303 csp->used_words_in_vs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1304 shrink_words = MIN2(shrink_words, available_to_shrink);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1305 csp->shrink_by(shrink_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1306 MetaspaceGC::dec_capacity_until_GC(shrink_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1307 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1308 size_t new_capacity_until_GC = MetaspaceGC::capacity_until_GC_in_bytes();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1309 gclog_or_tty->print_cr(" metaspace HWM: %.1fK", new_capacity_until_GC / (double) K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1310 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1311 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1312 assert(vsl->used_bytes_sum() == used_after_gc &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1313 used_after_gc <= vsl->capacity_bytes_sum(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1314 "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1315
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1316 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1317
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1318 // Metadebug methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1319
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1320 void Metadebug::deallocate_chunk_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1321 size_t chunk_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1322 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1323 VirtualSpaceList* vsl = sm->vs_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1324 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1325 Metadebug::deallocate_chunk_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1326 Metadebug::reset_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1327 for (uint i = 0; i < metadata_deallocate_a_lock_chunk; i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1328 Metachunk* dummy_chunk = vsl->current_virtual_space()->take_from_committed(chunk_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1329 if (dummy_chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1330 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1331 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1332 vsl->chunk_manager()->chunk_freelist_deallocate(dummy_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1333
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1334 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1335 gclog_or_tty->print("Metadebug::deallocate_chunk_a_lot: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1336 sm->sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1337 dummy_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1338 gclog_or_tty->print_cr(" Free chunks total %d count %d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1339 vsl->chunk_manager()->free_chunks_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1340 vsl->chunk_manager()->free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1341 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1342 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1343 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1344 Metadebug::inc_deallocate_chunk_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1345 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1346 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1347 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1348
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1349 void Metadebug::deallocate_block_a_lot(SpaceManager* sm,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1350 size_t raw_word_size){
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1351 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1352 if (MetaDataDeallocateALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1353 Metadebug::deallocate_block_a_lot_count() % MetaDataDeallocateALotInterval == 0 ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1354 Metadebug::set_deallocate_block_a_lot_count(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1355 for (uint i = 0; i < metadata_deallocate_a_lot_block; i++) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1356 MetaWord* dummy_block = sm->allocate_work(raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1357 if (dummy_block == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1358 break;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1359 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1360 sm->deallocate(dummy_block, raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1361 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1362 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1363 Metadebug::inc_deallocate_block_a_lot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1364 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1365 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1366 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1367
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1368 void Metadebug::init_allocation_fail_alot_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1369 if (MetadataAllocationFailALot) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1370 _allocation_fail_alot_count =
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1371 1+(long)((double)MetadataAllocationFailALotInterval*os::random()/(max_jint+1.0));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1372 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1373 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1374
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1375 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1376 bool Metadebug::test_metadata_failure() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1377 if (MetadataAllocationFailALot &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1378 Threads::is_vm_complete()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1379 if (_allocation_fail_alot_count > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1380 _allocation_fail_alot_count--;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1381 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1382 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1383 gclog_or_tty->print_cr("Metadata allocation failing for "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1384 "MetadataAllocationFailALot");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1385 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1386 init_allocation_fail_alot_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1387 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1388 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1389 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1390 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1391 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1392 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1393
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1394 // ChunkList methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1395
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1396 size_t ChunkList::sum_list_size() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1397 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1398 Metachunk* cur = head();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1399 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1400 result += cur->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1401 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1402 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1403 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1404 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1405
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1406 size_t ChunkList::sum_list_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1407 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1408 Metachunk* cur = head();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1409 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1410 result++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1411 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1412 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1413 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1414 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1415
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1416 size_t ChunkList::sum_list_capacity() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1417 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1418 Metachunk* cur = head();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1419 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1420 result += cur->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1421 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1422 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1423 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1424 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1425
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1426 void ChunkList::add_at_head(Metachunk* head, Metachunk* tail) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1427 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1428 assert(head == tail || tail->next() == NULL,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1429 "Not the tail or the head has already been added to a list");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1430
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1431 if (TraceMetadataChunkAllocation && Verbose) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1432 gclog_or_tty->print("ChunkList::add_at_head(head, tail): ");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1433 Metachunk* cur = head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1434 while (cur != NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1435 gclog_or_tty->print(PTR_FORMAT " (" SIZE_FORMAT ") ", cur, cur->word_size());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1436 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1437 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1438 gclog_or_tty->print_cr("");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1439 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1440
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1441 if (tail != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1442 tail->set_next(_head);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1443 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1444 set_head(head);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1445 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1446
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1447 void ChunkList::add_at_head(Metachunk* list) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1448 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1449 // Nothing to add
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1450 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1451 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1452 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1453 Metachunk* head = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1454 Metachunk* tail = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1455 Metachunk* cur = head->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1456 // Search for the tail since it is not passed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1457 while (cur != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1458 tail = cur;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1459 cur = cur->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1460 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1461 add_at_head(head, tail);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1462 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1463
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1464 // ChunkManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1465
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1466 // Verification of _free_chunks_total and _free_chunks_count does not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1467 // work with the CMS collector because its use of additional locks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1468 // complicate the mutex deadlock detection but it can still be useful
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1469 // for detecting errors in the chunk accounting with other collectors.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1470
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1471 size_t ChunkManager::free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1472 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1473 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1474 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1475 Mutex::_no_safepoint_check_flag);
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1476 slow_locked_verify_free_chunks_total();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1477 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1478 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1479 return _free_chunks_total;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1480 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1481
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1482 size_t ChunkManager::free_chunks_total_in_bytes() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1483 return free_chunks_total() * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1484 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1485
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1486 size_t ChunkManager::free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1487 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1488 if (!UseConcMarkSweepGC && !SpaceManager::expand_lock()->is_locked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1489 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1490 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1491 // This lock is only needed in debug because the verification
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1492 // of the _free_chunks_totals walks the list of free chunks
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1493 slow_locked_verify_free_chunks_count();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1494 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1495 #endif
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1496 return _free_chunks_count;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1497 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1498
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1499 void ChunkManager::locked_verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1500 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1501 assert(sum_free_chunks() == _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1502 err_msg("_free_chunks_total " SIZE_FORMAT " is not the"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1503 " same as sum " SIZE_FORMAT, _free_chunks_total,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1504 sum_free_chunks()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1505 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1506
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1507 void ChunkManager::verify_free_chunks_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1508 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1509 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1510 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1511 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1512
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1513 void ChunkManager::locked_verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1514 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1515 assert(sum_free_chunks_count() == _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1516 err_msg("_free_chunks_count " SIZE_FORMAT " is not the"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1517 " same as sum " SIZE_FORMAT, _free_chunks_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1518 sum_free_chunks_count()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1519 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1520
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1521 void ChunkManager::verify_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1522 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1523 MutexLockerEx cl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1524 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1525 locked_verify_free_chunks_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1526 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1527 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1528
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1529 void ChunkManager::verify() {
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1530 MutexLockerEx cl(SpaceManager::expand_lock(),
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1531 Mutex::_no_safepoint_check_flag);
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1532 locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1533 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1534
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1535 void ChunkManager::locked_verify() {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1536 locked_verify_free_chunks_count();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1537 locked_verify_free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1538 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1539
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1540 void ChunkManager::locked_print_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1541 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1542 st->print_cr("Free chunk total " SIZE_FORMAT " count " SIZE_FORMAT,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1543 _free_chunks_total, _free_chunks_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1544 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1545
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1546 void ChunkManager::locked_print_sum_free_chunks(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1547 assert_lock_strong(SpaceManager::expand_lock());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1548 st->print_cr("Sum free chunk total " SIZE_FORMAT " count " SIZE_FORMAT,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1549 sum_free_chunks(), sum_free_chunks_count());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1550 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1551 ChunkList* ChunkManager::free_chunks(ChunkIndex index) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1552 return &_free_chunks[index];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1553 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1554
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1555 // These methods that sum the free chunk lists are used in printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1556 // methods that are used in product builds.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1557 size_t ChunkManager::sum_free_chunks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1558 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1559 size_t result = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1560 for (ChunkIndex i = ZeroIndex; i < NumberOfFreeLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1561 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1562
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1563 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1564 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1565 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1566
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1567 result = result + list->sum_list_capacity();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1568 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1569 result = result + humongous_dictionary()->total_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1570 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1571 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1572
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1573 size_t ChunkManager::sum_free_chunks_count() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1574 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1575 size_t count = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1576 for (ChunkIndex i = ZeroIndex; i < NumberOfFreeLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1577 ChunkList* list = free_chunks(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1578 if (list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1579 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1580 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1581 count = count + list->sum_list_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1582 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1583 count = count + humongous_dictionary()->total_free_blocks();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1584 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1585 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1586
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1587 ChunkList* ChunkManager::find_free_chunks_list(size_t word_size) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1588 ChunkIndex index = list_index(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1589 assert(index < HumongousIndex, "No humongous list");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1590 return free_chunks(index);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1591 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1592
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1593 void ChunkManager::free_chunks_put(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1594 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1595 ChunkList* free_list = find_free_chunks_list(chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1596 chunk->set_next(free_list->head());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1597 free_list->set_head(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1598 // chunk is being returned to the chunk free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1599 inc_free_chunks_total(chunk->capacity_word_size());
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1600 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1601 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1602
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1603 void ChunkManager::chunk_freelist_deallocate(Metachunk* chunk) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1604 // The deallocation of a chunk originates in the freelist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1605 // manangement code for a Metaspace and does not hold the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1606 // lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1607 assert(chunk != NULL, "Deallocating NULL");
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1608 assert_lock_strong(SpaceManager::expand_lock());
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1609 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1610 if (TraceMetadataChunkAllocation) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1611 tty->print_cr("ChunkManager::chunk_freelist_deallocate: chunk "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1612 PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1613 chunk, chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1614 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1615 free_chunks_put(chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1616 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1617
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1618 Metachunk* ChunkManager::free_chunks_get(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1619 assert_lock_strong(SpaceManager::expand_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1620
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1621 slow_locked_verify();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1622
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1623 Metachunk* chunk = NULL;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1624 if (list_index(word_size) != HumongousIndex) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1625 ChunkList* free_list = find_free_chunks_list(word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1626 assert(free_list != NULL, "Sanity check");
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1627
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1628 chunk = free_list->head();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1629 debug_only(Metachunk* debug_head = chunk;)
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1630
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1631 if (chunk == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1632 return NULL;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1633 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1634
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1635 // Remove the chunk as the head of the list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1636 free_list->set_head(chunk->next());
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1637
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1638 // Chunk is being removed from the chunks free list.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1639 dec_free_chunks_total(chunk->capacity_word_size());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1640
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1641 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1642 tty->print_cr("ChunkManager::free_chunks_get: free_list "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1643 PTR_FORMAT " head " PTR_FORMAT " size " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1644 free_list, chunk, chunk->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1645 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1646 } else {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1647 chunk = humongous_dictionary()->get_chunk(
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1648 word_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1649 FreeBlockDictionary<Metachunk>::atLeast);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1650
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1651 if (chunk != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1652 if (TraceMetadataHumongousAllocation) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1653 size_t waste = chunk->word_size() - word_size;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1654 tty->print_cr("Free list allocate humongous chunk size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1655 " for requested size " SIZE_FORMAT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1656 " waste " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1657 chunk->word_size(), word_size, waste);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1658 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1659 // Chunk is being removed from the chunks free list.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1660 dec_free_chunks_total(chunk->capacity_word_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1661 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1662 chunk->set_is_free(false);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1663 #endif
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1664 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1665 return NULL;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1666 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1667 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1668
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1669 // Remove it from the links to this freelist
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1670 chunk->set_next(NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1671 chunk->set_prev(NULL);
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1672 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1673 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1674 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1675
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1676 Metachunk* ChunkManager::chunk_freelist_allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1677 assert_lock_strong(SpaceManager::expand_lock());
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1678 slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1679
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1680 // Take from the beginning of the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1681 Metachunk* chunk = free_chunks_get(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1682 if (chunk == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1683 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1684 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1685
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1686 assert((word_size <= chunk->word_size()) ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1687 list_index(chunk->word_size() == HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1688 "Non-humongous variable sized chunk");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1689 if (TraceMetadataChunkAllocation) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1690 size_t list_count;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1691 if (list_index(word_size) < HumongousIndex) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1692 ChunkList* list = find_free_chunks_list(word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1693 list_count = list->sum_list_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1694 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1695 list_count = humongous_dictionary()->total_count();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1696 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1697 tty->print("ChunkManager::chunk_freelist_allocate: " PTR_FORMAT " chunk "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1698 PTR_FORMAT " size " SIZE_FORMAT " count " SIZE_FORMAT " ",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1699 this, chunk, chunk->word_size(), list_count);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1700 locked_print_free_chunks(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1701 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1702
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1703 return chunk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1704 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1705
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1706 void ChunkManager::print_on(outputStream* out) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1707 if (PrintFLSStatistics != 0) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1708 humongous_dictionary()->report_statistics();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1709 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1710 }
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1711
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1712 // SpaceManager methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1713
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1714 void SpaceManager::get_initial_chunk_sizes(Metaspace::MetaspaceType type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1715 size_t* chunk_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1716 size_t* class_chunk_word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1717 switch (type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1718 case Metaspace::BootMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1719 *chunk_word_size = Metaspace::first_chunk_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1720 *class_chunk_word_size = Metaspace::first_class_chunk_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1721 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1722 case Metaspace::ROMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1723 *chunk_word_size = SharedReadOnlySize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1724 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1725 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1726 case Metaspace::ReadWriteMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1727 *chunk_word_size = SharedReadWriteSize / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1728 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1729 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1730 case Metaspace::AnonymousMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1731 case Metaspace::ReflectionMetaspaceType:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1732 *chunk_word_size = SpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1733 *class_chunk_word_size = ClassSpecializedChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1734 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1735 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1736 *chunk_word_size = SmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1737 *class_chunk_word_size = ClassSmallChunk;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1738 break;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1739 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1740 assert(chunk_word_size != 0 && class_chunk_word_size != 0,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1741 err_msg("Initial chunks sizes bad: data " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1742 " class " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1743 chunk_word_size, class_chunk_word_size));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1744 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1745
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1746 size_t SpaceManager::sum_free_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1747 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1748 size_t free = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1749 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1750 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1751 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1752 free += chunk->free_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1753 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1754 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1755 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1756 return free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1757 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1758
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1759 size_t SpaceManager::sum_waste_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1760 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1761 size_t result = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1762 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1763 result += sum_waste_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1764 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1765
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1766 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1767 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1768
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1769 size_t SpaceManager::sum_waste_in_chunks_in_use(ChunkIndex index) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1770 size_t result = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1771 Metachunk* chunk = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1772 // Count the free space in all the chunk but not the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1773 // current chunk from which allocations are still being done.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1774 if (chunk != NULL) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1775 Metachunk* prev = chunk;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1776 while (chunk != NULL && chunk != current_chunk()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1777 result += chunk->free_word_size();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1778 prev = chunk;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1779 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1780 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1781 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1782 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1783 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1784
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1785 size_t SpaceManager::sum_capacity_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1786 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1787 size_t sum = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1788 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1789 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1790 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1791 // Just changed this sum += chunk->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1792 // sum += chunk->word_size() - Metachunk::overhead();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1793 sum += chunk->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1794 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1795 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1796 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1797 return sum;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1798 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1799
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1800 size_t SpaceManager::sum_count_in_chunks_in_use() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1801 size_t count = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1802 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1803 count = count + sum_count_in_chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1804 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1805
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1806 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1807 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1808
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1809 size_t SpaceManager::sum_count_in_chunks_in_use(ChunkIndex i) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1810 size_t count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1811 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1812 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1813 count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1814 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1815 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1816 return count;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1817 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1818
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1819
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1820 size_t SpaceManager::sum_used_in_chunks_in_use() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1821 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1822 size_t used = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1823 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1824 Metachunk* chunk = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1825 while (chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1826 used += chunk->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1827 chunk = chunk->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1828 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1829 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1830 return used;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1831 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1832
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1833 void SpaceManager::locked_print_chunks_in_use_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1834
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1835 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1836 Metachunk* chunk = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1837 st->print("SpaceManager: %s " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1838 chunk_size_name(i), chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1839 if (chunk != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1840 st->print_cr(" free " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1841 chunk->free_word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1842 } else {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1843 st->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1844 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1845 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1846
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1847 vs_list()->chunk_manager()->locked_print_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1848 vs_list()->chunk_manager()->locked_print_sum_free_chunks(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1849 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1850
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1851 size_t SpaceManager::calc_chunk_size(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1852
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1853 // Decide between a small chunk and a medium chunk. Up to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1854 // _small_chunk_limit small chunks can be allocated but
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1855 // once a medium chunk has been allocated, no more small
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1856 // chunks will be allocated.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1857 size_t chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1858 if (chunks_in_use(MediumIndex) == NULL &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1859 (!has_small_chunk_limit() ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1860 sum_count_in_chunks_in_use(SmallIndex) < _small_chunk_limit)) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1861 chunk_word_size = (size_t) small_chunk_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1862 if (word_size + Metachunk::overhead() > small_chunk_size()) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1863 chunk_word_size = medium_chunk_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1864 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1865 } else {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1866 chunk_word_size = medium_chunk_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1867 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1868
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1869 // Might still need a humongous chunk. Enforce an
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1870 // eight word granularity to facilitate reuse (some
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1871 // wastage but better chance of reuse).
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1872 size_t if_humongous_sized_chunk =
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1873 align_size_up(word_size + Metachunk::overhead(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1874 HumongousChunkGranularity);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1875 chunk_word_size =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1876 MAX2((size_t) chunk_word_size, if_humongous_sized_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1877
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1878 assert(!SpaceManager::is_humongous(word_size) ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1879 chunk_word_size == if_humongous_sized_chunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1880 err_msg("Size calculation is wrong, word_size " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1881 " chunk_word_size " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1882 word_size, chunk_word_size));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1883 if (TraceMetadataHumongousAllocation &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1884 SpaceManager::is_humongous(word_size)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1885 gclog_or_tty->print_cr("Metadata humongous allocation:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1886 gclog_or_tty->print_cr(" word_size " PTR_FORMAT, word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1887 gclog_or_tty->print_cr(" chunk_word_size " PTR_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1888 chunk_word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1889 gclog_or_tty->print_cr(" chunk overhead " PTR_FORMAT,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1890 Metachunk::overhead());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1891 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1892 return chunk_word_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1893 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1894
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1895 MetaWord* SpaceManager::grow_and_allocate(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1896 assert(vs_list()->current_virtual_space() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1897 "Should have been set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1898 assert(current_chunk() == NULL ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1899 current_chunk()->allocate(word_size) == NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1900 "Don't need to expand");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1901 MutexLockerEx cl(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1902
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1903 if (TraceMetadataChunkAllocation && Verbose) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1904 size_t words_left = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1905 size_t words_used = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1906 if (current_chunk() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1907 words_left = current_chunk()->free_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1908 words_used = current_chunk()->used_word_size();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1909 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1910 gclog_or_tty->print_cr("SpaceManager::grow_and_allocate for " SIZE_FORMAT
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1911 " words " SIZE_FORMAT " words used " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1912 " words left",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1913 word_size, words_used, words_left);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1914 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1915
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1916 // Get another chunk out of the virtual space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1917 size_t grow_chunks_by_words = calc_chunk_size(word_size);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1918 Metachunk* next = get_new_chunk(word_size, grow_chunks_by_words);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1919
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1920 // If a chunk was available, add it to the in-use chunk list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1921 // and do an allocation from it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1922 if (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1923 Metadebug::deallocate_chunk_a_lot(this, grow_chunks_by_words);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1924 // Add to this manager's list of chunks in use.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1925 add_chunk(next, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1926 return next->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1927 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1928 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1929 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1930
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1931 void SpaceManager::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1932
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1933 for (ChunkIndex i = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1934 i < NumberOfInUseLists ;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1935 i = next_chunk_index(i) ) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1936 st->print_cr(" chunks_in_use " PTR_FORMAT " chunk size " PTR_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1937 chunks_in_use(i),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1938 chunks_in_use(i) == NULL ? 0 : chunks_in_use(i)->word_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1939 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1940 st->print_cr(" waste: Small " SIZE_FORMAT " Medium " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1941 " Humongous " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1942 sum_waste_in_chunks_in_use(SmallIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1943 sum_waste_in_chunks_in_use(MediumIndex),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1944 sum_waste_in_chunks_in_use(HumongousIndex));
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1945 // block free lists
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1946 if (block_freelists() != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1947 st->print_cr("total in block free lists " SIZE_FORMAT,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1948 block_freelists()->total_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
1949 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1950 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1951
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1952 SpaceManager::SpaceManager(Mutex* lock,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1953 VirtualSpaceList* vs_list) :
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1954 _vs_list(vs_list),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1955 _allocation_total(0),
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1956 _lock(lock)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1957 {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1958 initialize();
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1959 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1960
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1961 void SpaceManager::initialize() {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1962 Metadebug::init_allocation_fail_alot_count();
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1963 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1964 _chunks_in_use[i] = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1965 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1966 _current_chunk = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1967 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1968 gclog_or_tty->print_cr("SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1969 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1970 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1971
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1972 SpaceManager::~SpaceManager() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1973 MutexLockerEx fcl(SpaceManager::expand_lock(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1974 Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1975
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1976 ChunkManager* chunk_manager = vs_list()->chunk_manager();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1977
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
1978 chunk_manager->slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1979
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1980 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1981 gclog_or_tty->print_cr("~SpaceManager(): " PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1982 locked_print_chunks_in_use_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1983 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1984
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1985 // Mangle freed memory.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1986 NOT_PRODUCT(mangle_freed_chunks();)
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
1987
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1988 // Have to update before the chunks_in_use lists are emptied
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1989 // below.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1990 chunk_manager->inc_free_chunks_total(sum_capacity_in_chunks_in_use(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1991 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1992
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1993 // Add all the chunks in use by this space manager
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1994 // to the global list of free chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
1995
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1996 // Follow each list of chunks-in-use and add them to the
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1997 // free lists. Each list is NULL terminated.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1998
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
1999 for (ChunkIndex i = ZeroIndex; i < HumongousIndex; i = next_chunk_index(i)) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2000 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2001 gclog_or_tty->print_cr("returned %d %s chunks to freelist",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2002 sum_count_in_chunks_in_use(i),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2003 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2004 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2005 Metachunk* chunks = chunks_in_use(i);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2006 chunk_manager->free_chunks(i)->add_at_head(chunks);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2007 set_chunks_in_use(i, NULL);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2008 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2009 gclog_or_tty->print_cr("updated freelist count %d %s",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2010 chunk_manager->free_chunks(i)->sum_list_count(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2011 chunk_size_name(i));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2012 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2013 assert(i != HumongousIndex, "Humongous chunks are handled explicitly later");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2014 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2015
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2016 // The medium chunk case may be optimized by passing the head and
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2017 // tail of the medium chunk list to add_at_head(). The tail is often
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2018 // the current chunk but there are probably exceptions.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2019
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2020 // Humongous chunks
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2021 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2022 gclog_or_tty->print_cr("returned %d %s humongous chunks to dictionary",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2023 sum_count_in_chunks_in_use(HumongousIndex),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2024 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2025 gclog_or_tty->print("Humongous chunk dictionary: ");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2026 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2027 // Humongous chunks are never the current chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2028 Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2029
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2030 while (humongous_chunks != NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2031 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2032 humongous_chunks->set_is_free(true);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2033 #endif
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2034 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2035 gclog_or_tty->print(PTR_FORMAT " (" SIZE_FORMAT ") ",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2036 humongous_chunks,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2037 humongous_chunks->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2038 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2039 assert(humongous_chunks->word_size() == (size_t)
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2040 align_size_up(humongous_chunks->word_size(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2041 HumongousChunkGranularity),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2042 err_msg("Humongous chunk size is wrong: word size " SIZE_FORMAT
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2043 " granularity " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2044 humongous_chunks->word_size(), HumongousChunkGranularity));
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2045 Metachunk* next_humongous_chunks = humongous_chunks->next();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2046 chunk_manager->humongous_dictionary()->return_chunk(humongous_chunks);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2047 humongous_chunks = next_humongous_chunks;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2048 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2049 if (TraceMetadataChunkAllocation && Verbose) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2050 gclog_or_tty->print_cr("");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2051 gclog_or_tty->print_cr("updated dictionary count %d %s",
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2052 chunk_manager->humongous_dictionary()->total_count(),
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2053 chunk_size_name(HumongousIndex));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2054 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2055 set_chunks_in_use(HumongousIndex, NULL);
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2056 chunk_manager->slow_locked_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2057 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2058
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2059 const char* SpaceManager::chunk_size_name(ChunkIndex index) const {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2060 switch (index) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2061 case SpecializedIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2062 return "Specialized";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2063 case SmallIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2064 return "Small";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2065 case MediumIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2066 return "Medium";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2067 case HumongousIndex:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2068 return "Humongous";
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2069 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2070 return NULL;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2071 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2072 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2073
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2074 ChunkIndex ChunkManager::list_index(size_t size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2075 switch (size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2076 case SpecializedChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2077 assert(SpecializedChunk == ClassSpecializedChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2078 "Need branch for ClassSpecializedChunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2079 return SpecializedIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2080 case SmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2081 case ClassSmallChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2082 return SmallIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2083 case MediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2084 case ClassMediumChunk:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2085 return MediumIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2086 default:
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2087 assert(size > MediumChunk && size > ClassMediumChunk,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2088 "Not a humongous chunk");
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2089 return HumongousIndex;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2090 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2091 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2092
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2093 void SpaceManager::deallocate(MetaWord* p, size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2094 assert_lock_strong(_lock);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2095 size_t min_size = TreeChunk<Metablock, FreeList>::min_size();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2096 assert(word_size >= min_size,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2097 err_msg("Should not deallocate dark matter " SIZE_FORMAT, word_size));
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2098 block_freelists()->return_block(p, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2099 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2100
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2101 // Adds a chunk to the list of chunks in use.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2102 void SpaceManager::add_chunk(Metachunk* new_chunk, bool make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2103
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2104 assert(new_chunk != NULL, "Should not be NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2105 assert(new_chunk->next() == NULL, "Should not be on a list");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2106
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2107 new_chunk->reset_empty();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2108
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2109 // Find the correct list and and set the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2110 // chunk for that list.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2111 ChunkIndex index = ChunkManager::list_index(new_chunk->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2112
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2113 if (index != HumongousIndex) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2114 set_current_chunk(new_chunk);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2115 new_chunk->set_next(chunks_in_use(index));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2116 set_chunks_in_use(index, new_chunk);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2117 } else {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2118 // For null class loader data and DumpSharedSpaces, the first chunk isn't
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2119 // small, so small will be null. Link this first chunk as the current
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2120 // chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2121 if (make_current) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2122 // Set as the current chunk but otherwise treat as a humongous chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2123 set_current_chunk(new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2124 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2125 // Link at head. The _current_chunk only points to a humongous chunk for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2126 // the null class loader metaspace (class and data virtual space managers)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2127 // any humongous chunks so will not point to the tail
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2128 // of the humongous chunks list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2129 new_chunk->set_next(chunks_in_use(HumongousIndex));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2130 set_chunks_in_use(HumongousIndex, new_chunk);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2131
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2132 assert(new_chunk->word_size() > MediumChunk, "List inconsistency");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2133 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2134
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2135 assert(new_chunk->is_empty(), "Not ready for reuse");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2136 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2137 gclog_or_tty->print("SpaceManager::add_chunk: %d) ",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2138 sum_count_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2139 new_chunk->print_on(gclog_or_tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2140 vs_list()->chunk_manager()->locked_print_free_chunks(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2141 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2142 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2143
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2144 Metachunk* SpaceManager::get_new_chunk(size_t word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2145 size_t grow_chunks_by_words) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2146
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2147 Metachunk* next = vs_list()->get_new_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2148 grow_chunks_by_words,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2149 medium_chunk_bunch());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2150
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2151 if (TraceMetadataHumongousAllocation &&
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2152 SpaceManager::is_humongous(next->word_size())) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2153 gclog_or_tty->print_cr(" new humongous chunk word size " PTR_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2154 next->word_size());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2155 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2156
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2157 return next;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2158 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2159
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2160 MetaWord* SpaceManager::allocate(size_t word_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2161 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2162
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2163 // If only the dictionary is going to be used (i.e., no
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2164 // indexed free list), then there is a minimum size requirement.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2165 // MinChunkSize is a placeholder for the real minimum size JJJ
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2166 size_t byte_size = word_size * BytesPerWord;
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2167
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2168 size_t byte_size_with_overhead = byte_size + Metablock::overhead();
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2169
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2170 size_t raw_bytes_size = MAX2(byte_size_with_overhead,
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2171 Metablock::min_block_byte_size());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2172 raw_bytes_size = ARENA_ALIGN(raw_bytes_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2173 size_t raw_word_size = raw_bytes_size / BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2174 assert(raw_word_size * BytesPerWord == raw_bytes_size, "Size problem");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2175
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2176 BlockFreelist* fl = block_freelists();
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2177 MetaWord* p = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2178 // Allocation from the dictionary is expensive in the sense that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2179 // the dictionary has to be searched for a size. Don't allocate
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2180 // from the dictionary until it starts to get fat. Is this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2181 // a reasonable policy? Maybe an skinny dictionary is fast enough
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2182 // for allocations. Do some profiling. JJJ
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2183 if (fl->total_size() > allocation_from_dictionary_limit) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2184 p = fl->get_block(raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2185 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2186 if (p == NULL) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2187 p = allocate_work(raw_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2188 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2189 Metadebug::deallocate_block_a_lot(this, raw_word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2190
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2191 return p;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2192 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2193
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2194 // Returns the address of spaced allocated for "word_size".
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2195 // This methods does not know about blocks (Metablocks)
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2196 MetaWord* SpaceManager::allocate_work(size_t word_size) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2197 assert_lock_strong(_lock);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2198 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2199 if (Metadebug::test_metadata_failure()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2200 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2201 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2202 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2203 // Is there space in the current chunk?
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2204 MetaWord* result = NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2205
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2206 // For DumpSharedSpaces, only allocate out of the current chunk which is
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2207 // never null because we gave it the size we wanted. Caller reports out
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2208 // of memory if this returns null.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2209 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2210 assert(current_chunk() != NULL, "should never happen");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2211 inc_allocation_total(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2212 return current_chunk()->allocate(word_size); // caller handles null result
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2213 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2214 if (current_chunk() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2215 result = current_chunk()->allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2216 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2217
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2218 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2219 result = grow_and_allocate(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2220 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2221 if (result > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2222 inc_allocation_total(word_size);
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2223 assert(result != (MetaWord*) chunks_in_use(MediumIndex),
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2224 "Head of the list is being allocated");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2225 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2226
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2227 return result;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2228 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2229
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2230 void SpaceManager::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2231 // If there are blocks in the dictionary, then
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2232 // verfication of chunks does not work since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2233 // being in the dictionary alters a chunk.
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2234 if (block_freelists()->total_size() == 0) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2235 for (ChunkIndex i = ZeroIndex; i < NumberOfInUseLists; i = next_chunk_index(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2236 Metachunk* curr = chunks_in_use(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2237 while (curr != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2238 curr->verify();
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2239 verify_chunk_size(curr);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2240 curr = curr->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2241 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2242 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2243 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2244 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2245
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2246 void SpaceManager::verify_chunk_size(Metachunk* chunk) {
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2247 assert(is_humongous(chunk->word_size()) ||
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2248 chunk->word_size() == medium_chunk_size() ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2249 chunk->word_size() == small_chunk_size() ||
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2250 chunk->word_size() == specialized_chunk_size(),
7208
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2251 "Chunk size is wrong");
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2252 return;
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2253 }
eade6b2e4782 8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
jmasa
parents: 7187
diff changeset
2254
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2255 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2256 void SpaceManager::verify_allocation_total() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2257 // Verification is only guaranteed at a safepoint.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2258 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2259 gclog_or_tty->print_cr("Chunk " PTR_FORMAT " allocation_total " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2260 " sum_used_in_chunks_in_use " SIZE_FORMAT,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2261 this,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2262 allocation_total(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2263 sum_used_in_chunks_in_use());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2264 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2265 MutexLockerEx cl(lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2266 assert(allocation_total() == sum_used_in_chunks_in_use(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2267 err_msg("allocation total is not consistent %d vs %d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2268 allocation_total(), sum_used_in_chunks_in_use()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2269 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2270
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2271 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2272
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2273 void SpaceManager::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2274 size_t curr_total = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2275 size_t waste = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2276 uint i = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2277 size_t used = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2278 size_t capacity = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2279
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2280 // Add up statistics for all chunks in this SpaceManager.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2281 for (ChunkIndex index = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2282 index < NumberOfInUseLists;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2283 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2284 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2285 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2286 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2287 out->print("%d) ", i++);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2288 curr->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2289 if (TraceMetadataChunkAllocation && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2290 block_freelists()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2291 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2292 curr_total += curr->word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2293 used += curr->used_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2294 capacity += curr->capacity_word_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2295 waste += curr->free_word_size() + curr->overhead();;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2296 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2297 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2298
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2299 size_t free = current_chunk() == NULL ? 0 : current_chunk()->free_word_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2300 // Free space isn't wasted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2301 waste -= free;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2302
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2303 out->print_cr("total of all chunks " SIZE_FORMAT " used " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2304 " free " SIZE_FORMAT " capacity " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2305 " waste " SIZE_FORMAT, curr_total, used, free, capacity, waste);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2306 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2307
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
2308 #ifndef PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2309 void SpaceManager::mangle_freed_chunks() {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2310 for (ChunkIndex index = ZeroIndex;
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2311 index < NumberOfInUseLists;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2312 index = next_chunk_index(index)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2313 for (Metachunk* curr = chunks_in_use(index);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2314 curr != NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2315 curr = curr->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2316 curr->mangle();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2317 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2318 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2319 }
7185
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents: 6969
diff changeset
2320 #endif // PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2321
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2322 // MetaspaceAux
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2323
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2324 size_t MetaspaceAux::used_in_bytes(Metaspace::MetadataType mdtype) {
6730
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2325 size_t used = 0;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2326 ClassLoaderDataGraphMetaspaceIterator iter;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2327 while (iter.repeat()) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2328 Metaspace* msp = iter.get_next();
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2329 // Sum allocation_total for each metaspace
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2330 if (msp != NULL) {
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2331 used += msp->used_words(mdtype);
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2332 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2333 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2334 return used * BytesPerWord;
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2335 }
5d2156bcb78b 7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
jmasa
parents: 6726
diff changeset
2336
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2337 size_t MetaspaceAux::free_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2338 size_t free = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2339 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2340 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2341 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2342 if (msp != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2343 free += msp->free_words(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2344 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2345 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2346 return free * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2347 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2348
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2349 size_t MetaspaceAux::capacity_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2350 size_t capacity = free_chunks_total(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2351 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2352 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2353 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2354 if (msp != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2355 capacity += msp->capacity_words(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2356 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2357 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2358 return capacity * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2359 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2360
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2361 size_t MetaspaceAux::reserved_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2362 size_t reserved = (mdtype == Metaspace::ClassType) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2363 Metaspace::class_space_list()->virtual_space_total() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2364 Metaspace::space_list()->virtual_space_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2365 return reserved * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2366 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2367
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2368 size_t MetaspaceAux::min_chunk_size() { return Metaspace::first_chunk_word_size(); }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2369
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2370 size_t MetaspaceAux::free_chunks_total(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2371 ChunkManager* chunk = (mdtype == Metaspace::ClassType) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2372 Metaspace::class_space_list()->chunk_manager() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2373 Metaspace::space_list()->chunk_manager();
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2374 chunk->slow_verify();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2375 return chunk->free_chunks_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2376 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2377
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2378 size_t MetaspaceAux::free_chunks_total_in_bytes(Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2379 return free_chunks_total(mdtype) * BytesPerWord;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2380 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2381
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2382 void MetaspaceAux::print_metaspace_change(size_t prev_metadata_used) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2383 gclog_or_tty->print(", [Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2384 if (PrintGCDetails && Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2385 gclog_or_tty->print(" " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2386 "->" SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2387 "(" SIZE_FORMAT "/" SIZE_FORMAT ")",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2388 prev_metadata_used,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2389 used_in_bytes(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2390 capacity_in_bytes(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2391 reserved_in_bytes());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2392 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2393 gclog_or_tty->print(" " SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2394 "->" SIZE_FORMAT "K"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2395 "(" SIZE_FORMAT "K/" SIZE_FORMAT "K)",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2396 prev_metadata_used / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2397 used_in_bytes()/ K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2398 capacity_in_bytes()/K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2399 reserved_in_bytes()/ K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2400 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2401
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2402 gclog_or_tty->print("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2403 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2404
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2405 // This is printed when PrintGCDetails
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2406 void MetaspaceAux::print_on(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2407 Metaspace::MetadataType ct = Metaspace::ClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2408 Metaspace::MetadataType nct = Metaspace::NonClassType;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2409
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2410 out->print_cr(" Metaspace total "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2411 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2412 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2413 capacity_in_bytes()/K, used_in_bytes()/K, reserved_in_bytes()/K);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2414 out->print_cr(" data space "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2415 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2416 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2417 capacity_in_bytes(nct)/K, used_in_bytes(nct)/K, reserved_in_bytes(nct)/K);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2418 out->print_cr(" class space "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2419 SIZE_FORMAT "K, used " SIZE_FORMAT "K,"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2420 " reserved " SIZE_FORMAT "K",
6734
942bb29b20b0 7196298: Better fix for 7195789
jmasa
parents: 6730
diff changeset
2421 capacity_in_bytes(ct)/K, used_in_bytes(ct)/K, reserved_in_bytes(ct)/K);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2422 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2423
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2424 // Print information for class space and data space separately.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2425 // This is almost the same as above.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2426 void MetaspaceAux::print_on(outputStream* out, Metaspace::MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2427 size_t free_chunks_capacity_bytes = free_chunks_total_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2428 size_t capacity_bytes = capacity_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2429 size_t used_bytes = used_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2430 size_t free_bytes = free_in_bytes(mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2431 size_t used_and_free = used_bytes + free_bytes +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2432 free_chunks_capacity_bytes;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2433 out->print_cr(" Chunk accounting: used in chunks " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2434 "K + unused in chunks " SIZE_FORMAT "K + "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2435 " capacity in free chunks " SIZE_FORMAT "K = " SIZE_FORMAT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2436 "K capacity in allocated chunks " SIZE_FORMAT "K",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2437 used_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2438 free_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2439 free_chunks_capacity_bytes / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2440 used_and_free / K,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2441 capacity_bytes / K);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2442 assert(used_and_free == capacity_bytes, "Accounting is wrong");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2443 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2444
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2445 // Print total fragmentation for class and data metaspaces separately
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2446 void MetaspaceAux::print_waste(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2447
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2448 size_t specialized_waste = 0, small_waste = 0, medium_waste = 0, large_waste = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2449 size_t specialized_count = 0, small_count = 0, medium_count = 0, large_count = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2450 size_t cls_specialized_waste = 0, cls_small_waste = 0, cls_medium_waste = 0, cls_large_waste = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2451 size_t cls_specialized_count = 0, cls_small_count = 0, cls_medium_count = 0, cls_large_count = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2452
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2453 ClassLoaderDataGraphMetaspaceIterator iter;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2454 while (iter.repeat()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2455 Metaspace* msp = iter.get_next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2456 if (msp != NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2457 specialized_waste += msp->vsm()->sum_waste_in_chunks_in_use(SpecializedIndex);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2458 specialized_count += msp->vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2459 small_waste += msp->vsm()->sum_waste_in_chunks_in_use(SmallIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2460 small_count += msp->vsm()->sum_count_in_chunks_in_use(SmallIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2461 medium_waste += msp->vsm()->sum_waste_in_chunks_in_use(MediumIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2462 medium_count += msp->vsm()->sum_count_in_chunks_in_use(MediumIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2463 large_waste += msp->vsm()->sum_waste_in_chunks_in_use(HumongousIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2464 large_count += msp->vsm()->sum_count_in_chunks_in_use(HumongousIndex);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2465
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2466 cls_specialized_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SpecializedIndex);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2467 cls_specialized_count += msp->class_vsm()->sum_count_in_chunks_in_use(SpecializedIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2468 cls_small_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(SmallIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2469 cls_small_count += msp->class_vsm()->sum_count_in_chunks_in_use(SmallIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2470 cls_medium_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(MediumIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2471 cls_medium_count += msp->class_vsm()->sum_count_in_chunks_in_use(MediumIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2472 cls_large_waste += msp->class_vsm()->sum_waste_in_chunks_in_use(HumongousIndex);
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2473 cls_large_count += msp->class_vsm()->sum_count_in_chunks_in_use(HumongousIndex);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2474 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2475 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2476 out->print_cr("Total fragmentation waste (words) doesn't count free space");
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2477 out->print_cr(" data: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2478 SIZE_FORMAT " small(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2479 SIZE_FORMAT " medium(s) " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2480 specialized_count, specialized_waste, small_count,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2481 small_waste, medium_count, medium_waste);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2482 out->print_cr(" class: " SIZE_FORMAT " specialized(s) " SIZE_FORMAT ", "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2483 SIZE_FORMAT " small(s) " SIZE_FORMAT,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2484 cls_specialized_count, cls_specialized_waste,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2485 cls_small_count, cls_small_waste);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2486 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2487
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2488 // Dump global metaspace things from the end of ClassLoaderDataGraph
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2489 void MetaspaceAux::dump(outputStream* out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2490 out->print_cr("All Metaspace:");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2491 out->print("data space: "); print_on(out, Metaspace::NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2492 out->print("class space: "); print_on(out, Metaspace::ClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2493 print_waste(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2494 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2495
6969
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2496 void MetaspaceAux::verify_free_chunks() {
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2497 Metaspace::space_list()->chunk_manager()->verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2498 Metaspace::class_space_list()->chunk_manager()->verify();
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2499 }
6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents: 6885
diff changeset
2500
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2501 // Metaspace methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2502
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2503 size_t Metaspace::_first_chunk_word_size = 0;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2504 size_t Metaspace::_first_class_chunk_word_size = 0;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2505
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2506 Metaspace::Metaspace(Mutex* lock, MetaspaceType type) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2507 initialize(lock, type);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2508 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2510 Metaspace::~Metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2511 delete _vsm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2512 delete _class_vsm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2513 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2514
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2515 VirtualSpaceList* Metaspace::_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2516 VirtualSpaceList* Metaspace::_class_space_list = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2517
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2518 #define VIRTUALSPACEMULTIPLIER 2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2519
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2520 void Metaspace::global_initialize() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2521 // Initialize the alignment for shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2522 int max_alignment = os::vm_page_size();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2523 MetaspaceShared::set_max_alignment(max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2524
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2525 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2526 SharedReadOnlySize = align_size_up(SharedReadOnlySize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2527 SharedReadWriteSize = align_size_up(SharedReadWriteSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2528 SharedMiscDataSize = align_size_up(SharedMiscDataSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2529 SharedMiscCodeSize = align_size_up(SharedMiscCodeSize, max_alignment);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2530
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2531 // Initialize with the sum of the shared space sizes. The read-only
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2532 // and read write metaspace chunks will be allocated out of this and the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2533 // remainder is the misc code and data chunks.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2534 size_t total = align_size_up(SharedReadOnlySize + SharedReadWriteSize +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2535 SharedMiscDataSize + SharedMiscCodeSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2536 os::vm_allocation_granularity());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2537 size_t word_size = total/wordSize;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2538 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2539 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2540 // If using shared space, open the file that contains the shared space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2541 // and map in the memory before initializing the rest of metaspace (so
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2542 // the addresses don't conflict)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2543 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2544 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2545 memset(mapinfo, 0, sizeof(FileMapInfo));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2546
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2547 // Open the shared archive file, read and validate the header. If
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2548 // initialization fails, shared spaces [UseSharedSpaces] are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2549 // disabled and the file is closed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2550 // Map in spaces now also
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2551 if (mapinfo->initialize() && MetaspaceShared::map_shared_spaces(mapinfo)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2552 FileMapInfo::set_current_info(mapinfo);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2553 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2554 assert(!mapinfo->is_open() && !UseSharedSpaces,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2555 "archive file not closed or shared spaces not disabled.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2556 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2557 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2558
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2559 // Initialize these before initializing the VirtualSpaceList
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2560 _first_chunk_word_size = InitialBootClassLoaderMetaspaceSize / BytesPerWord;
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2561 _first_chunk_word_size = align_word_size_up(_first_chunk_word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2562 // Make the first class chunk bigger than a medium chunk so it's not put
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2563 // on the medium chunk list. The next chunk will be small and progress
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2564 // from there. This size calculated by -version.
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2565 _first_class_chunk_word_size = MIN2((size_t)MediumChunk*6,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2566 (ClassMetaspaceSize/BytesPerWord)*2);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2567 _first_class_chunk_word_size = align_word_size_up(_first_class_chunk_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2568 // Arbitrarily set the initial virtual space to a multiple
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2569 // of the boot class loader size.
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2570 size_t word_size = VIRTUALSPACEMULTIPLIER * first_chunk_word_size();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2571 // Initialize the list of virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2572 _space_list = new VirtualSpaceList(word_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2573 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2574 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2575
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2576 // For UseCompressedKlassPointers the class space is reserved as a piece of the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2577 // Java heap because the compression algorithm is the same for each. The
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2578 // argument passed in is at the top of the compressed space
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2579 void Metaspace::initialize_class_space(ReservedSpace rs) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2580 // The reserved space size may be bigger because of alignment, esp with UseLargePages
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2581 assert(rs.size() >= ClassMetaspaceSize, err_msg("%d != %d", rs.size(), ClassMetaspaceSize));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2582 _class_space_list = new VirtualSpaceList(rs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2583 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2584
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2585 void Metaspace::initialize(Mutex* lock,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2586 MetaspaceType type) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2587
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2588 assert(space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2589 "Metadata VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2590
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2591 _vsm = new SpaceManager(lock, space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2592 if (_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2593 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2594 }
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2595 size_t word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2596 size_t class_word_size;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2597 vsm()->get_initial_chunk_sizes(type,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2598 &word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2599 &class_word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2600
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2601 assert(class_space_list() != NULL,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2602 "Class VirtualSpaceList has not been initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2603
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2604 // Allocate SpaceManager for classes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2605 _class_vsm = new SpaceManager(lock, class_space_list());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2606 if (_class_vsm == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2607 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2608 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2609
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2610 MutexLockerEx cl(SpaceManager::expand_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2611
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2612 // Allocate chunk for metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2613 Metachunk* new_chunk =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2614 space_list()->get_initialization_chunk(word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2615 vsm()->medium_chunk_bunch());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2616 assert(!DumpSharedSpaces || new_chunk != NULL, "should have enough space for both chunks");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2617 if (new_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2618 // Add to this manager's list of chunks in use and current_chunk().
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2619 vsm()->add_chunk(new_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2620 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2621
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2622 // Allocate chunk for class metadata objects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2623 Metachunk* class_chunk =
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2624 class_space_list()->get_initialization_chunk(class_word_size,
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2625 class_vsm()->medium_chunk_bunch());
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2626 if (class_chunk != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2627 class_vsm()->add_chunk(class_chunk, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2628 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2629 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2630
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2631 size_t Metaspace::align_word_size_up(size_t word_size) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2632 size_t byte_size = word_size * wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2633 return ReservedSpace::allocation_align_size_up(byte_size) / wordSize;
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2634 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2635
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2636 MetaWord* Metaspace::allocate(size_t word_size, MetadataType mdtype) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2637 // DumpSharedSpaces doesn't use class metadata area (yet)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2638 if (mdtype == ClassType && !DumpSharedSpaces) {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2639 return class_vsm()->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2640 } else {
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2641 return vsm()->allocate(word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2642 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2643 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2644
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2645 MetaWord* Metaspace::expand_and_allocate(size_t word_size, MetadataType mdtype) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2646 MetaWord* result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2647 MetaspaceGC::set_expand_after_GC(true);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2648 size_t before_inc = MetaspaceGC::capacity_until_GC();
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2649 size_t delta_words = MetaspaceGC::delta_capacity_until_GC(word_size);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2650 MetaspaceGC::inc_capacity_until_GC(delta_words);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2651 if (PrintGCDetails && Verbose) {
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2652 gclog_or_tty->print_cr("Increase capacity to GC from " SIZE_FORMAT
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2653 " to " SIZE_FORMAT, before_inc, MetaspaceGC::capacity_until_GC());
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2654 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2655
6753
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2656 result = allocate(word_size, mdtype);
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2657
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2658 return result;
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2659 }
8da5e203b993 7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
jmasa
parents: 6736
diff changeset
2660
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2661 // Space allocated in the Metaspace. This may
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2662 // be across several metadata virtual spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2663 char* Metaspace::bottom() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2664 assert(DumpSharedSpaces, "only useful and valid for dumping shared spaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2665 return (char*)vsm()->current_chunk()->bottom();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2666 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2667
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2668 size_t Metaspace::used_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2669 // return vsm()->allocation_total();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2670 return mdtype == ClassType ? class_vsm()->sum_used_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2671 vsm()->sum_used_in_chunks_in_use(); // includes overhead!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2672 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2673
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2674 size_t Metaspace::free_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2675 return mdtype == ClassType ? class_vsm()->sum_free_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2676 vsm()->sum_free_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2677 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2678
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2679 // Space capacity in the Metaspace. It includes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2680 // space in the list of chunks from which allocations
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2681 // have been made. Don't include space in the global freelist and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2682 // in the space available in the dictionary which
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2683 // is already counted in some chunk.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2684 size_t Metaspace::capacity_words(MetadataType mdtype) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2685 return mdtype == ClassType ? class_vsm()->sum_capacity_in_chunks_in_use() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2686 vsm()->sum_capacity_in_chunks_in_use();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2687 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2688
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2689 void Metaspace::deallocate(MetaWord* ptr, size_t word_size, bool is_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2690 if (SafepointSynchronize::is_at_safepoint()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2691 assert(Thread::current()->is_VM_thread(), "should be the VM thread");
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2692 // Don't take Heap_lock
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2693 MutexLocker ml(vsm()->lock());
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2694 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2695 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2696 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2697 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2698 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2699 return;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2700 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2701 if (is_class) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2702 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2703 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2704 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2705 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2706 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2707 MutexLocker ml(vsm()->lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2708
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2709 if (word_size < TreeChunk<Metablock, FreeList>::min_size()) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2710 // Dark matter. Too small for dictionary.
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2711 #ifdef ASSERT
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2712 Copy::fill_to_words((HeapWord*)ptr, word_size, 0xf5f5f5f5);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2713 #endif
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2714 return;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2715 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2716 if (is_class) {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2717 class_vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2718 } else {
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2719 vsm()->deallocate(ptr, word_size);
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2720 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2721 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2722 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2723
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2724 Metablock* Metaspace::allocate(ClassLoaderData* loader_data, size_t word_size,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2725 bool read_only, MetadataType mdtype, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2726 if (HAS_PENDING_EXCEPTION) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2727 assert(false, "Should not allocate with exception pending");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2728 return NULL; // caller does a CHECK_NULL too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2729 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2730
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2731 // SSS: Should we align the allocations and make sure the sizes are aligned.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2732 MetaWord* result = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2733
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2734 assert(loader_data != NULL, "Should never pass around a NULL loader_data. "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2735 "ClassLoaderData::the_null_class_loader_data() should have been used.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2736 // Allocate in metaspaces without taking out a lock, because it deadlocks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2737 // with the SymbolTable_lock. Dumping is single threaded for now. We'll have
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2738 // to revisit this for application class data sharing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2739 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2740 if (read_only) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2741 result = loader_data->ro_metaspace()->allocate(word_size, NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2742 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2743 result = loader_data->rw_metaspace()->allocate(word_size, NonClassType);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2744 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2745 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2746 report_out_of_shared_space(read_only ? SharedReadOnly : SharedReadWrite);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2747 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2748 return Metablock::initialize(result, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2749 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2750
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2751 result = loader_data->metaspace_non_null()->allocate(word_size, mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2752
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2753 if (result == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2754 // Try to clean out some memory and retry.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2755 result =
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2756 Universe::heap()->collector_policy()->satisfy_failed_metadata_allocation(
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2757 loader_data, word_size, mdtype);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2758
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2759 // If result is still null, we are out of memory.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2760 if (result == NULL) {
7446
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2761 if (Verbose && TraceMetadataChunkAllocation) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2762 gclog_or_tty->print_cr("Metaspace allocation failed for size "
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2763 SIZE_FORMAT, word_size);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2764 if (loader_data->metaspace_or_null() != NULL) loader_data->metaspace_or_null()->dump(gclog_or_tty);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2765 MetaspaceAux::dump(gclog_or_tty);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
jmasa
parents: 7435
diff changeset
2766 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2767 // -XX:+HeapDumpOnOutOfMemoryError and -XX:OnOutOfMemoryError support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2768 report_java_out_of_memory("Metadata space");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2769
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2770 if (JvmtiExport::should_post_resource_exhausted()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2771 JvmtiExport::post_resource_exhausted(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2772 JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2773 "Metadata space");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2774 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2775 THROW_OOP_0(Universe::out_of_memory_error_perm_gen());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2776 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2777 }
6885
685df3c6f84b 7045397: NPG: Add freelists to class loader arenas.
jmasa
parents: 6786
diff changeset
2778 return Metablock::initialize(result, word_size);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2779 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2780
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2781 void Metaspace::print_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2782 // Print both class virtual space counts and metaspace.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2783 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2784 vsm()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2785 class_vsm()->print_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2786 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2787 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2788
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2789 bool Metaspace::contains(const void * ptr) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2790 if (MetaspaceShared::is_in_shared_space(ptr)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2791 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2792 }
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2793 // This is checked while unlocked. As long as the virtualspaces are added
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2794 // at the end, the pointer will be in one of them. The virtual spaces
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2795 // aren't deleted presently. When they are, some sort of locking might
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2796 // be needed. Note, locking this can cause inversion problems with the
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6969
diff changeset
2797 // caller in MetaspaceObj::is_metadata() function.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2798 return space_list()->contains(ptr) || class_space_list()->contains(ptr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2799 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2800
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2801 void Metaspace::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2802 vsm()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2803 class_vsm()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2804 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2805
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2806 void Metaspace::dump(outputStream* const out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2807 if (UseMallocOnly) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2808 // Just print usage for now
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2809 out->print_cr("usage %d", used_words(Metaspace::NonClassType));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2810 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2811 out->print_cr("\nVirtual space manager: " INTPTR_FORMAT, vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2812 vsm()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2813 out->print_cr("\nClass space manager: " INTPTR_FORMAT, class_vsm());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2814 class_vsm()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
diff changeset
2815 }