Mercurial > hg > truffle
annotate src/share/vm/services/memoryPool.cpp @ 5763:a3d71693e0ce
removed bytecode disassembly from CodeCacheRuntime into separate BytecodeDisassembler class
removed VM call for doing bytecode disassembly
added support for explicitly excluding classes from JaCoCo (put '// JaCoCo Exclude' somewhere in the source file)
added node intrinsics to MaterializeNode
added snippets for the UnsignedMath classes
each file opened by CFGPrinter now includes a unique id in its name to avoid a race of multiple threads writing to the same file
the IdealGraphPrinter uses the new BytecodeDisassembler mechanism
teh UnsignedMath class is exclude from JaCoCo processing as it is used in snippets
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 04 Jul 2012 21:57:49 +0200 |
parents | 1d1603768966 |
children | da91efe96a93 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2011, 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "classfile/vmSymbols.hpp" | |
28 #include "oops/oop.inline.hpp" | |
29 #include "runtime/handles.inline.hpp" | |
30 #include "runtime/javaCalls.hpp" | |
31 #include "services/lowMemoryDetector.hpp" | |
32 #include "services/management.hpp" | |
33 #include "services/memoryManager.hpp" | |
34 #include "services/memoryPool.hpp" | |
0 | 35 |
36 MemoryPool::MemoryPool(const char* name, | |
37 PoolType type, | |
38 size_t init_size, | |
39 size_t max_size, | |
40 bool support_usage_threshold, | |
41 bool support_gc_threshold) { | |
42 _name = name; | |
43 _initial_size = init_size; | |
44 _max_size = max_size; | |
45 _memory_pool_obj = NULL; | |
46 _available_for_allocation = true; | |
47 _num_managers = 0; | |
48 _type = type; | |
49 | |
50 // initialize the max and init size of collection usage | |
51 _after_gc_usage = MemoryUsage(_initial_size, 0, 0, _max_size); | |
52 | |
53 _usage_sensor = NULL; | |
54 _gc_usage_sensor = NULL; | |
55 // usage threshold supports both high and low threshold | |
56 _usage_threshold = new ThresholdSupport(support_usage_threshold, support_usage_threshold); | |
57 // gc usage threshold supports only high threshold | |
58 _gc_usage_threshold = new ThresholdSupport(support_gc_threshold, support_gc_threshold); | |
59 } | |
60 | |
61 void MemoryPool::add_manager(MemoryManager* mgr) { | |
62 assert(_num_managers < MemoryPool::max_num_managers, "_num_managers exceeds the max"); | |
63 if (_num_managers < MemoryPool::max_num_managers) { | |
64 _managers[_num_managers] = mgr; | |
65 _num_managers++; | |
66 } | |
67 } | |
68 | |
69 | |
70 // Returns an instanceHandle of a MemoryPool object. | |
71 // It creates a MemoryPool instance when the first time | |
72 // this function is called. | |
73 instanceOop MemoryPool::get_memory_pool_instance(TRAPS) { | |
74 // Must do an acquire so as to force ordering of subsequent | |
75 // loads from anything _memory_pool_obj points to or implies. | |
76 instanceOop pool_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_pool_obj); | |
77 if (pool_obj == NULL) { | |
78 // It's ok for more than one thread to execute the code up to the locked region. | |
79 // Extra pool instances will just be gc'ed. | |
80 klassOop k = Management::sun_management_ManagementFactory_klass(CHECK_NULL); | |
81 instanceKlassHandle ik(THREAD, k); | |
82 | |
83 Handle pool_name = java_lang_String::create_from_str(_name, CHECK_NULL); | |
84 jlong usage_threshold_value = (_usage_threshold->is_high_threshold_supported() ? 0 : -1L); | |
85 jlong gc_usage_threshold_value = (_gc_usage_threshold->is_high_threshold_supported() ? 0 : -1L); | |
86 | |
87 JavaValue result(T_OBJECT); | |
88 JavaCallArguments args; | |
89 args.push_oop(pool_name); // Argument 1 | |
90 args.push_int((int) is_heap()); // Argument 2 | |
91 | |
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92 Symbol* method_name = vmSymbols::createMemoryPool_name(); |
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93 Symbol* signature = vmSymbols::createMemoryPool_signature(); |
0 | 94 |
95 args.push_long(usage_threshold_value); // Argument 3 | |
96 args.push_long(gc_usage_threshold_value); // Argument 4 | |
97 | |
98 JavaCalls::call_static(&result, | |
99 ik, | |
100 method_name, | |
101 signature, | |
102 &args, | |
103 CHECK_NULL); | |
104 | |
105 instanceOop p = (instanceOop) result.get_jobject(); | |
106 instanceHandle pool(THREAD, p); | |
107 | |
108 { | |
109 // Get lock since another thread may have create the instance | |
110 MutexLocker ml(Management_lock); | |
111 | |
112 // Check if another thread has created the pool. We reload | |
113 // _memory_pool_obj here because some other thread may have | |
114 // initialized it while we were executing the code before the lock. | |
115 // | |
116 // The lock has done an acquire, so the load can't float above it, | |
117 // but we need to do a load_acquire as above. | |
118 pool_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_pool_obj); | |
119 if (pool_obj != NULL) { | |
120 return pool_obj; | |
121 } | |
122 | |
123 // Get the address of the object we created via call_special. | |
124 pool_obj = pool(); | |
125 | |
126 // Use store barrier to make sure the memory accesses associated | |
127 // with creating the pool are visible before publishing its address. | |
128 // The unlock will publish the store to _memory_pool_obj because | |
129 // it does a release first. | |
130 OrderAccess::release_store_ptr(&_memory_pool_obj, pool_obj); | |
131 } | |
132 } | |
133 | |
134 return pool_obj; | |
135 } | |
136 | |
137 inline static size_t get_max_value(size_t val1, size_t val2) { | |
138 return (val1 > val2 ? val1 : val2); | |
139 } | |
140 | |
141 void MemoryPool::record_peak_memory_usage() { | |
142 // Caller in JDK is responsible for synchronization - | |
143 // acquire the lock for this memory pool before calling VM | |
144 MemoryUsage usage = get_memory_usage(); | |
145 size_t peak_used = get_max_value(usage.used(), _peak_usage.used()); | |
146 size_t peak_committed = get_max_value(usage.committed(), _peak_usage.committed()); | |
147 size_t peak_max_size = get_max_value(usage.max_size(), _peak_usage.max_size()); | |
148 | |
149 _peak_usage = MemoryUsage(initial_size(), peak_used, peak_committed, peak_max_size); | |
150 } | |
151 | |
152 static void set_sensor_obj_at(SensorInfo** sensor_ptr, instanceHandle sh) { | |
153 assert(*sensor_ptr == NULL, "Should be called only once"); | |
154 SensorInfo* sensor = new SensorInfo(); | |
155 sensor->set_sensor(sh()); | |
156 *sensor_ptr = sensor; | |
157 } | |
158 | |
159 void MemoryPool::set_usage_sensor_obj(instanceHandle sh) { | |
160 set_sensor_obj_at(&_usage_sensor, sh); | |
161 } | |
162 | |
163 void MemoryPool::set_gc_usage_sensor_obj(instanceHandle sh) { | |
164 set_sensor_obj_at(&_gc_usage_sensor, sh); | |
165 } | |
166 | |
167 void MemoryPool::oops_do(OopClosure* f) { | |
168 f->do_oop((oop*) &_memory_pool_obj); | |
169 if (_usage_sensor != NULL) { | |
170 _usage_sensor->oops_do(f); | |
171 } | |
172 if (_gc_usage_sensor != NULL) { | |
173 _gc_usage_sensor->oops_do(f); | |
174 } | |
175 } | |
176 | |
177 ContiguousSpacePool::ContiguousSpacePool(ContiguousSpace* space, | |
178 const char* name, | |
179 PoolType type, | |
180 size_t max_size, | |
181 bool support_usage_threshold) : | |
182 CollectedMemoryPool(name, type, space->capacity(), max_size, | |
183 support_usage_threshold), _space(space) { | |
184 } | |
185 | |
186 MemoryUsage ContiguousSpacePool::get_memory_usage() { | |
187 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
188 size_t used = used_in_bytes(); | |
189 size_t committed = _space->capacity(); | |
190 | |
191 return MemoryUsage(initial_size(), used, committed, maxSize); | |
192 } | |
193 | |
194 SurvivorContiguousSpacePool::SurvivorContiguousSpacePool(DefNewGeneration* gen, | |
195 const char* name, | |
196 PoolType type, | |
197 size_t max_size, | |
198 bool support_usage_threshold) : | |
199 CollectedMemoryPool(name, type, gen->from()->capacity(), max_size, | |
200 support_usage_threshold), _gen(gen) { | |
201 } | |
202 | |
203 MemoryUsage SurvivorContiguousSpacePool::get_memory_usage() { | |
204 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
205 size_t used = used_in_bytes(); | |
206 size_t committed = committed_in_bytes(); | |
207 | |
208 return MemoryUsage(initial_size(), used, committed, maxSize); | |
209 } | |
210 | |
211 #ifndef SERIALGC | |
212 CompactibleFreeListSpacePool::CompactibleFreeListSpacePool(CompactibleFreeListSpace* space, | |
213 const char* name, | |
214 PoolType type, | |
215 size_t max_size, | |
216 bool support_usage_threshold) : | |
217 CollectedMemoryPool(name, type, space->capacity(), max_size, | |
218 support_usage_threshold), _space(space) { | |
219 } | |
220 | |
221 MemoryUsage CompactibleFreeListSpacePool::get_memory_usage() { | |
222 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
223 size_t used = used_in_bytes(); | |
224 size_t committed = _space->capacity(); | |
225 | |
226 return MemoryUsage(initial_size(), used, committed, maxSize); | |
227 } | |
228 #endif // SERIALGC | |
229 | |
230 GenerationPool::GenerationPool(Generation* gen, | |
231 const char* name, | |
232 PoolType type, | |
233 bool support_usage_threshold) : | |
234 CollectedMemoryPool(name, type, gen->capacity(), gen->max_capacity(), | |
235 support_usage_threshold), _gen(gen) { | |
236 } | |
237 | |
238 MemoryUsage GenerationPool::get_memory_usage() { | |
239 size_t used = used_in_bytes(); | |
240 size_t committed = _gen->capacity(); | |
241 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
242 | |
243 return MemoryUsage(initial_size(), used, committed, maxSize); | |
244 } | |
245 | |
246 CodeHeapPool::CodeHeapPool(CodeHeap* codeHeap, const char* name, bool support_usage_threshold) : | |
247 MemoryPool(name, NonHeap, codeHeap->capacity(), codeHeap->max_capacity(), | |
248 support_usage_threshold, false), _codeHeap(codeHeap) { | |
249 } | |
250 | |
251 MemoryUsage CodeHeapPool::get_memory_usage() { | |
252 size_t used = used_in_bytes(); | |
253 size_t committed = _codeHeap->capacity(); | |
254 size_t maxSize = (available_for_allocation() ? max_size() : 0); | |
255 | |
256 return MemoryUsage(initial_size(), used, committed, maxSize); | |
257 } |