Mercurial > hg > truffle
annotate src/share/vm/services/memoryManager.cpp @ 1721:413ad0331a0c
6977924: Changes for 6975078 produce build error with certain gcc versions
Summary: The changes introduced for 6975078 assign badHeapOopVal to the _allocation field in the ResourceObj class. In 32 bit linux builds with certain versions of gcc this assignment will be flagged as an error while compiling allocation.cpp. In 32 bit builds the constant value badHeapOopVal (which is cast to an intptr_t) is negative. The _allocation field is typed as an unsigned intptr_t and gcc catches this as an error.
Reviewed-by: jcoomes, ysr, phh
author | johnc |
---|---|
date | Wed, 18 Aug 2010 10:59:06 -0700 |
parents | f6f3eef8a521 |
children | f95d63e2154a |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1089
diff
changeset
|
2 * Copyright (c) 2003, 2005, 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:
1089
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1089
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:
1089
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_memoryManager.cpp.incl" | |
27 | |
28 HS_DTRACE_PROBE_DECL8(hotspot, mem__pool__gc__begin, char*, int, char*, int, | |
29 size_t, size_t, size_t, size_t); | |
30 HS_DTRACE_PROBE_DECL8(hotspot, mem__pool__gc__end, char*, int, char*, int, | |
31 size_t, size_t, size_t, size_t); | |
32 | |
33 MemoryManager::MemoryManager() { | |
34 _num_pools = 0; | |
35 _memory_mgr_obj = NULL; | |
36 } | |
37 | |
38 void MemoryManager::add_pool(MemoryPool* pool) { | |
39 assert(_num_pools < MemoryManager::max_num_pools, "_num_pools exceeds the max"); | |
40 if (_num_pools < MemoryManager::max_num_pools) { | |
41 _pools[_num_pools] = pool; | |
42 _num_pools++; | |
43 } | |
44 pool->add_manager(this); | |
45 } | |
46 | |
47 MemoryManager* MemoryManager::get_code_cache_memory_manager() { | |
48 return (MemoryManager*) new CodeCacheMemoryManager(); | |
49 } | |
50 | |
51 GCMemoryManager* MemoryManager::get_copy_memory_manager() { | |
52 return (GCMemoryManager*) new CopyMemoryManager(); | |
53 } | |
54 | |
55 GCMemoryManager* MemoryManager::get_msc_memory_manager() { | |
56 return (GCMemoryManager*) new MSCMemoryManager(); | |
57 } | |
58 | |
59 GCMemoryManager* MemoryManager::get_parnew_memory_manager() { | |
60 return (GCMemoryManager*) new ParNewMemoryManager(); | |
61 } | |
62 | |
63 GCMemoryManager* MemoryManager::get_cms_memory_manager() { | |
64 return (GCMemoryManager*) new CMSMemoryManager(); | |
65 } | |
66 | |
67 GCMemoryManager* MemoryManager::get_psScavenge_memory_manager() { | |
68 return (GCMemoryManager*) new PSScavengeMemoryManager(); | |
69 } | |
70 | |
71 GCMemoryManager* MemoryManager::get_psMarkSweep_memory_manager() { | |
72 return (GCMemoryManager*) new PSMarkSweepMemoryManager(); | |
73 } | |
74 | |
1089
db0d5eba9d20
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
tonyp
parents:
0
diff
changeset
|
75 GCMemoryManager* MemoryManager::get_g1YoungGen_memory_manager() { |
db0d5eba9d20
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
tonyp
parents:
0
diff
changeset
|
76 return (GCMemoryManager*) new G1YoungGenMemoryManager(); |
db0d5eba9d20
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
tonyp
parents:
0
diff
changeset
|
77 } |
db0d5eba9d20
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
tonyp
parents:
0
diff
changeset
|
78 |
db0d5eba9d20
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
tonyp
parents:
0
diff
changeset
|
79 GCMemoryManager* MemoryManager::get_g1OldGen_memory_manager() { |
db0d5eba9d20
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
tonyp
parents:
0
diff
changeset
|
80 return (GCMemoryManager*) new G1OldGenMemoryManager(); |
db0d5eba9d20
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
tonyp
parents:
0
diff
changeset
|
81 } |
db0d5eba9d20
6815790: G1: Missing MemoryPoolMXBeans with -XX:+UseG1GC
tonyp
parents:
0
diff
changeset
|
82 |
0 | 83 instanceOop MemoryManager::get_memory_manager_instance(TRAPS) { |
84 // Must do an acquire so as to force ordering of subsequent | |
85 // loads from anything _memory_mgr_obj points to or implies. | |
86 instanceOop mgr_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_mgr_obj); | |
87 if (mgr_obj == NULL) { | |
88 // It's ok for more than one thread to execute the code up to the locked region. | |
89 // Extra manager instances will just be gc'ed. | |
90 klassOop k = Management::sun_management_ManagementFactory_klass(CHECK_0); | |
91 instanceKlassHandle ik(THREAD, k); | |
92 | |
93 Handle mgr_name = java_lang_String::create_from_str(name(), CHECK_0); | |
94 | |
95 JavaValue result(T_OBJECT); | |
96 JavaCallArguments args; | |
97 args.push_oop(mgr_name); // Argument 1 | |
98 | |
99 symbolHandle method_name; | |
100 symbolHandle signature; | |
101 if (is_gc_memory_manager()) { | |
102 method_name = vmSymbolHandles::createGarbageCollector_name(); | |
103 signature = vmSymbolHandles::createGarbageCollector_signature(); | |
104 args.push_oop(Handle()); // Argument 2 (for future extension) | |
105 } else { | |
106 method_name = vmSymbolHandles::createMemoryManager_name(); | |
107 signature = vmSymbolHandles::createMemoryManager_signature(); | |
108 } | |
109 | |
110 JavaCalls::call_static(&result, | |
111 ik, | |
112 method_name, | |
113 signature, | |
114 &args, | |
115 CHECK_0); | |
116 | |
117 instanceOop m = (instanceOop) result.get_jobject(); | |
118 instanceHandle mgr(THREAD, m); | |
119 | |
120 { | |
121 // Get lock before setting _memory_mgr_obj | |
122 // since another thread may have created the instance | |
123 MutexLocker ml(Management_lock); | |
124 | |
125 // Check if another thread has created the management object. We reload | |
126 // _memory_mgr_obj here because some other thread may have initialized | |
127 // it while we were executing the code before the lock. | |
128 // | |
129 // The lock has done an acquire, so the load can't float above it, but | |
130 // we need to do a load_acquire as above. | |
131 mgr_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_mgr_obj); | |
132 if (mgr_obj != NULL) { | |
133 return mgr_obj; | |
134 } | |
135 | |
136 // Get the address of the object we created via call_special. | |
137 mgr_obj = mgr(); | |
138 | |
139 // Use store barrier to make sure the memory accesses associated | |
140 // with creating the management object are visible before publishing | |
141 // its address. The unlock will publish the store to _memory_mgr_obj | |
142 // because it does a release first. | |
143 OrderAccess::release_store_ptr(&_memory_mgr_obj, mgr_obj); | |
144 } | |
145 } | |
146 | |
147 return mgr_obj; | |
148 } | |
149 | |
150 void MemoryManager::oops_do(OopClosure* f) { | |
151 f->do_oop((oop*) &_memory_mgr_obj); | |
152 } | |
153 | |
154 GCStatInfo::GCStatInfo(int num_pools) { | |
155 // initialize the arrays for memory usage | |
156 _before_gc_usage_array = (MemoryUsage*) NEW_C_HEAP_ARRAY(MemoryUsage, num_pools); | |
157 _after_gc_usage_array = (MemoryUsage*) NEW_C_HEAP_ARRAY(MemoryUsage, num_pools); | |
158 size_t len = num_pools * sizeof(MemoryUsage); | |
159 memset(_before_gc_usage_array, 0, len); | |
160 memset(_after_gc_usage_array, 0, len); | |
161 _usage_array_size = num_pools; | |
162 } | |
163 | |
164 GCStatInfo::~GCStatInfo() { | |
165 FREE_C_HEAP_ARRAY(MemoryUsage*, _before_gc_usage_array); | |
166 FREE_C_HEAP_ARRAY(MemoryUsage*, _after_gc_usage_array); | |
167 } | |
168 | |
169 void GCStatInfo::set_gc_usage(int pool_index, MemoryUsage usage, bool before_gc) { | |
170 MemoryUsage* gc_usage_array; | |
171 if (before_gc) { | |
172 gc_usage_array = _before_gc_usage_array; | |
173 } else { | |
174 gc_usage_array = _after_gc_usage_array; | |
175 } | |
176 gc_usage_array[pool_index] = usage; | |
177 } | |
178 | |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
179 void GCStatInfo::clear() { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
180 _index = 0; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
181 _start_time = 0L; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
182 _end_time = 0L; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
183 size_t len = _usage_array_size * sizeof(MemoryUsage); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
184 memset(_before_gc_usage_array, 0, len); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
185 memset(_after_gc_usage_array, 0, len); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
186 } |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
187 |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
188 |
0 | 189 GCMemoryManager::GCMemoryManager() : MemoryManager() { |
190 _num_collections = 0; | |
191 _last_gc_stat = NULL; | |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
192 _last_gc_lock = new Mutex(Mutex::leaf, "_last_gc_lock", true); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
193 _current_gc_stat = NULL; |
0 | 194 _num_gc_threads = 1; |
195 } | |
196 | |
197 GCMemoryManager::~GCMemoryManager() { | |
198 delete _last_gc_stat; | |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
199 delete _last_gc_lock; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
200 delete _current_gc_stat; |
0 | 201 } |
202 | |
203 void GCMemoryManager::initialize_gc_stat_info() { | |
204 assert(MemoryService::num_memory_pools() > 0, "should have one or more memory pools"); | |
205 _last_gc_stat = new GCStatInfo(MemoryService::num_memory_pools()); | |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
206 _current_gc_stat = new GCStatInfo(MemoryService::num_memory_pools()); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
207 // tracking concurrent collections we need two objects: one to update, and one to |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
208 // hold the publicly available "last (completed) gc" information. |
0 | 209 } |
210 | |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
211 void GCMemoryManager::gc_begin(bool recordGCBeginTime, bool recordPreGCUsage, |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
212 bool recordAccumulatedGCTime) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
213 assert(_last_gc_stat != NULL && _current_gc_stat != NULL, "Just checking"); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
214 if (recordAccumulatedGCTime) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
215 _accumulated_timer.start(); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
216 } |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
217 // _num_collections now increases in gc_end, to count completed collections |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
218 if (recordGCBeginTime) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
219 _current_gc_stat->set_index(_num_collections+1); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
220 _current_gc_stat->set_start_time(Management::timestamp()); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
221 } |
0 | 222 |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
223 if (recordPreGCUsage) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
224 // Keep memory usage of all memory pools |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
225 for (int i = 0; i < MemoryService::num_memory_pools(); i++) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
226 MemoryPool* pool = MemoryService::get_memory_pool(i); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
227 MemoryUsage usage = pool->get_memory_usage(); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
228 _current_gc_stat->set_before_gc_usage(i, usage); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
229 HS_DTRACE_PROBE8(hotspot, mem__pool__gc__begin, |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
230 name(), strlen(name()), |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
231 pool->name(), strlen(pool->name()), |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
232 usage.init_size(), usage.used(), |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
233 usage.committed(), usage.max_size()); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
234 } |
0 | 235 } |
236 } | |
237 | |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
238 // A collector MUST, even if it does not complete for some reason, |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
239 // make a TraceMemoryManagerStats object where countCollection is true, |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
240 // to ensure the current gc stat is placed in _last_gc_stat. |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
241 void GCMemoryManager::gc_end(bool recordPostGCUsage, |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
242 bool recordAccumulatedGCTime, |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
243 bool recordGCEndTime, bool countCollection) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
244 if (recordAccumulatedGCTime) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
245 _accumulated_timer.stop(); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
246 } |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
247 if (recordGCEndTime) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
248 _current_gc_stat->set_end_time(Management::timestamp()); |
0 | 249 } |
250 | |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
251 if (recordPostGCUsage) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
252 int i; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
253 // keep the last gc statistics for all memory pools |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
254 for (i = 0; i < MemoryService::num_memory_pools(); i++) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
255 MemoryPool* pool = MemoryService::get_memory_pool(i); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
256 MemoryUsage usage = pool->get_memory_usage(); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
257 |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
258 HS_DTRACE_PROBE8(hotspot, mem__pool__gc__end, |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
259 name(), strlen(name()), |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
260 pool->name(), strlen(pool->name()), |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
261 usage.init_size(), usage.used(), |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
262 usage.committed(), usage.max_size()); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
263 |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
264 _current_gc_stat->set_after_gc_usage(i, usage); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
265 } |
0 | 266 |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
267 // Set last collection usage of the memory pools managed by this collector |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
268 for (i = 0; i < num_memory_pools(); i++) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
269 MemoryPool* pool = get_memory_pool(i); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
270 MemoryUsage usage = pool->get_memory_usage(); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
271 |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
272 // Compare with GC usage threshold |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
273 pool->set_last_collection_usage(usage); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
274 LowMemoryDetector::detect_after_gc_memory(pool); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
275 } |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
276 } |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
277 if (countCollection) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
278 _num_collections++; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
279 // alternately update two objects making one public when complete |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
280 { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
281 MutexLockerEx ml(_last_gc_lock, Mutex::_no_safepoint_check_flag); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
282 GCStatInfo *tmp = _last_gc_stat; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
283 _last_gc_stat = _current_gc_stat; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
284 _current_gc_stat = tmp; |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
285 // reset the current stat for diagnosability purposes |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
286 _current_gc_stat->clear(); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
287 } |
0 | 288 } |
289 } | |
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
290 |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
291 size_t GCMemoryManager::get_last_gc_stat(GCStatInfo* dest) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
292 MutexLockerEx ml(_last_gc_lock, Mutex::_no_safepoint_check_flag); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
293 if (_last_gc_stat->gc_index() != 0) { |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
294 dest->set_index(_last_gc_stat->gc_index()); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
295 dest->set_start_time(_last_gc_stat->start_time()); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
296 dest->set_end_time(_last_gc_stat->end_time()); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
297 assert(dest->usage_array_size() == _last_gc_stat->usage_array_size(), |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
298 "Must have same array size"); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
299 size_t len = dest->usage_array_size() * sizeof(MemoryUsage); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
300 memcpy(dest->before_gc_usage_array(), _last_gc_stat->before_gc_usage_array(), len); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
301 memcpy(dest->after_gc_usage_array(), _last_gc_stat->after_gc_usage_array(), len); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
302 } |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
303 return _last_gc_stat->gc_index(); |
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
304 } |