Mercurial > hg > graal-jvmci-8
annotate src/share/vm/memory/freeBlockDictionary.hpp @ 12233:40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation.
Reviewed-by: stefank, dholmes
author | tschatzl |
---|---|
date | Wed, 11 Sep 2013 16:25:02 +0200 |
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 |