Mercurial > hg > graal-compiler
annotate src/share/vm/memory/freeBlockDictionary.hpp @ 7183:b2dbd323c668
8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
Summary: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
Reviewed-by: bdelsart, sspitsyn, coleenp
author | jiangli |
---|---|
date | Tue, 27 Nov 2012 17:03:56 -0500 |
parents | 685df3c6f84b |
children |
rev | line source |
---|---|
0 | 1 /* |
6026 | 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1145
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1145
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1145
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
6026 | 25 #ifndef SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP |
26 #define SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP | |
1972 | 27 |
28 #include "memory/allocation.hpp" | |
29 #include "runtime/mutex.hpp" | |
30 #include "utilities/debug.hpp" | |
31 #include "utilities/globalDefinitions.hpp" | |
32 #include "utilities/ostream.hpp" | |
33 | |
0 | 34 // A FreeBlockDictionary is an abstract superclass that will allow |
35 // a number of alternative implementations in the future. | |
6026 | 36 template <class Chunk> |
6197 | 37 class FreeBlockDictionary: public CHeapObj<mtGC> { |
0 | 38 public: |
39 enum Dither { | |
40 atLeast, | |
41 exactly, | |
42 roughly | |
43 }; | |
44 enum DictionaryChoice { | |
45 dictionaryBinaryTree = 0, | |
46 dictionarySplayTree = 1, | |
47 dictionarySkipList = 2 | |
48 }; | |
49 | |
50 private: | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
51 // This field is added and can be set to point to the |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
52 // the Mutex used to synchronize access to the |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
53 // dictionary so that assertion checking can be done. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
54 // For example it is set to point to _parDictionaryAllocLock. |
0 | 55 NOT_PRODUCT(Mutex* _lock;) |
56 | |
57 public: | |
6028
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
58 virtual void remove_chunk(Chunk* fc) = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
59 virtual Chunk* get_chunk(size_t size, Dither dither = atLeast) = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
60 virtual void return_chunk(Chunk* chunk) = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
61 virtual size_t total_chunk_size(debug_only(const Mutex* lock)) const = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
62 virtual size_t max_chunk_size() const = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
63 virtual size_t min_size() const = 0; |
0 | 64 // Reset the dictionary to the initial conditions for a single |
65 // block. | |
66 virtual void reset(HeapWord* addr, size_t size) = 0; | |
67 virtual void reset() = 0; | |
68 | |
6885 | 69 virtual void dict_census_update(size_t size, bool split, bool birth) = 0; |
6028
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
70 virtual bool coal_dict_over_populated(size_t size) = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
71 virtual void begin_sweep_dict_census(double coalSurplusPercent, |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
269
diff
changeset
|
72 float inter_sweep_current, float inter_sweep_estimate, |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
269
diff
changeset
|
73 float intra__sweep_current) = 0; |
6028
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
74 virtual void end_sweep_dict_census(double splitSurplusPercent) = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
75 virtual Chunk* find_largest_dict() const = 0; |
0 | 76 // verify that the given chunk is in the dictionary. |
6028
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
77 virtual bool verify_chunk_in_free_list(Chunk* tc) const = 0; |
0 | 78 |
79 // Sigma_{all_free_blocks} (block_size^2) | |
80 virtual double sum_of_squared_block_sizes() const = 0; | |
81 | |
6026 | 82 virtual Chunk* find_chunk_ends_at(HeapWord* target) const = 0; |
6028
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
83 virtual void inc_total_size(size_t v) = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
84 virtual void dec_total_size(size_t v) = 0; |
0 | 85 |
86 NOT_PRODUCT ( | |
6028
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
87 virtual size_t sum_dict_returned_bytes() = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
88 virtual void initialize_dict_returned_bytes() = 0; |
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
89 virtual size_t total_count() = 0; |
0 | 90 ) |
91 | |
6028
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
92 virtual void report_statistics() const { |
0 | 93 gclog_or_tty->print("No statistics available"); |
94 } | |
95 | |
6028
f69a5d43dc19
7164144: Fix variable naming style in freeBlockDictionary.* and binaryTreeDictionary*
jmasa
parents:
6026
diff
changeset
|
96 virtual void print_dict_census() const = 0; |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
269
diff
changeset
|
97 virtual void print_free_lists(outputStream* st) const = 0; |
0 | 98 |
99 virtual void verify() const = 0; | |
100 | |
101 Mutex* par_lock() const PRODUCT_RETURN0; | |
102 void set_par_lock(Mutex* lock) PRODUCT_RETURN; | |
103 void verify_par_locked() const PRODUCT_RETURN; | |
104 }; | |
1972 | 105 |
6026 | 106 #endif // SHARE_VM_MEMORY_FREEBLOCKDICTIONARY_HPP |