Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp @ 2426:1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Tue, 05 Apr 2011 14:12:31 -0700 |
| parents | 3582bf76420e |
| children | c2bf0120ee5d |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
2426
1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
trims
parents:
2177
diff
changeset
|
2 * Copyright (c) 2005, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1311
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1311
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:
1311
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "code/codeCache.hpp" | |
| 28 #include "gc_implementation/parallelScavenge/pcTasks.hpp" | |
| 29 #include "gc_implementation/parallelScavenge/psParallelCompact.hpp" | |
| 30 #include "gc_interface/collectedHeap.hpp" | |
| 31 #include "memory/universe.hpp" | |
| 32 #include "oops/objArrayKlass.inline.hpp" | |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "oops/oop.pcgc.inline.hpp" | |
| 35 #include "prims/jvmtiExport.hpp" | |
| 36 #include "runtime/fprofiler.hpp" | |
| 37 #include "runtime/jniHandles.hpp" | |
| 38 #include "runtime/thread.hpp" | |
| 39 #include "runtime/vmThread.hpp" | |
| 40 #include "services/management.hpp" | |
| 0 | 41 |
| 42 // | |
| 43 // ThreadRootsMarkingTask | |
| 44 // | |
| 45 | |
| 46 void ThreadRootsMarkingTask::do_it(GCTaskManager* manager, uint which) { | |
| 47 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 48 | |
| 49 ResourceMark rm; | |
| 50 | |
| 51 NOT_PRODUCT(TraceTime tm("ThreadRootsMarkingTask", | |
| 52 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 53 ParCompactionManager* cm = | |
| 54 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 55 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
56 CodeBlobToOopClosure mark_and_push_in_blobs(&mark_and_push_closure, /*do_marking=*/ true); |
| 0 | 57 |
| 58 if (_java_thread != NULL) | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
59 _java_thread->oops_do(&mark_and_push_closure, &mark_and_push_in_blobs); |
| 0 | 60 |
| 61 if (_vm_thread != NULL) | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
62 _vm_thread->oops_do(&mark_and_push_closure, &mark_and_push_in_blobs); |
| 0 | 63 |
| 64 // Do the real work | |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
65 cm->follow_marking_stacks(); |
| 0 | 66 } |
| 67 | |
| 68 | |
| 69 void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) { | |
| 70 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 71 | |
| 72 NOT_PRODUCT(TraceTime tm("MarkFromRootsTask", | |
| 73 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 74 ParCompactionManager* cm = | |
| 75 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 76 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 77 | |
| 78 switch (_root_type) { | |
| 79 case universe: | |
| 80 Universe::oops_do(&mark_and_push_closure); | |
| 81 break; | |
| 82 | |
| 83 case reference_processing: | |
| 84 ReferenceProcessor::oops_do(&mark_and_push_closure); | |
| 85 break; | |
| 86 | |
| 87 case jni_handles: | |
| 88 JNIHandles::oops_do(&mark_and_push_closure); | |
| 89 break; | |
| 90 | |
| 91 case threads: | |
| 92 { | |
| 93 ResourceMark rm; | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
94 CodeBlobToOopClosure each_active_code_blob(&mark_and_push_closure, /*do_marking=*/ true); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
95 Threads::oops_do(&mark_and_push_closure, &each_active_code_blob); |
| 0 | 96 } |
| 97 break; | |
| 98 | |
| 99 case object_synchronizer: | |
| 100 ObjectSynchronizer::oops_do(&mark_and_push_closure); | |
| 101 break; | |
| 102 | |
| 103 case flat_profiler: | |
| 104 FlatProfiler::oops_do(&mark_and_push_closure); | |
| 105 break; | |
| 106 | |
| 107 case management: | |
| 108 Management::oops_do(&mark_and_push_closure); | |
| 109 break; | |
| 110 | |
| 111 case jvmti: | |
| 112 JvmtiExport::oops_do(&mark_and_push_closure); | |
| 113 break; | |
| 114 | |
| 115 case system_dictionary: | |
| 116 SystemDictionary::always_strong_oops_do(&mark_and_push_closure); | |
| 117 break; | |
| 118 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
119 case code_cache: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
120 // Do not treat nmethods as strong roots for mark/sweep, since we can unload them. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
121 //CodeCache::scavenge_root_nmethods_do(CodeBlobToOopClosure(&mark_and_push_closure)); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
122 break; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
375
diff
changeset
|
123 |
| 0 | 124 default: |
| 125 fatal("Unknown root type"); | |
| 126 } | |
| 127 | |
| 128 // Do the real work | |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
129 cm->follow_marking_stacks(); |
| 0 | 130 } |
| 131 | |
| 132 | |
| 133 // | |
| 134 // RefProcTaskProxy | |
| 135 // | |
| 136 | |
| 137 void RefProcTaskProxy::do_it(GCTaskManager* manager, uint which) | |
| 138 { | |
| 139 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 140 | |
| 141 NOT_PRODUCT(TraceTime tm("RefProcTask", | |
| 142 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 143 ParCompactionManager* cm = | |
| 144 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 145 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 146 PSParallelCompact::FollowStackClosure follow_stack_closure(cm); | |
| 147 _rp_task.work(_work_id, *PSParallelCompact::is_alive_closure(), | |
| 148 mark_and_push_closure, follow_stack_closure); | |
| 149 } | |
| 150 | |
| 151 // | |
| 152 // RefProcTaskExecutor | |
| 153 // | |
| 154 | |
| 155 void RefProcTaskExecutor::execute(ProcessTask& task) | |
| 156 { | |
| 157 ParallelScavengeHeap* heap = PSParallelCompact::gc_heap(); | |
| 158 uint parallel_gc_threads = heap->gc_task_manager()->workers(); | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
159 RegionTaskQueueSet* qset = ParCompactionManager::region_array(); |
| 0 | 160 ParallelTaskTerminator terminator(parallel_gc_threads, qset); |
| 161 GCTaskQueue* q = GCTaskQueue::create(); | |
| 162 for(uint i=0; i<parallel_gc_threads; i++) { | |
| 163 q->enqueue(new RefProcTaskProxy(task, i)); | |
| 164 } | |
| 165 if (task.marks_oops_alive()) { | |
| 166 if (parallel_gc_threads>1) { | |
| 167 for (uint j=0; j<parallel_gc_threads; j++) { | |
| 168 q->enqueue(new StealMarkingTask(&terminator)); | |
| 169 } | |
| 170 } | |
| 171 } | |
| 172 PSParallelCompact::gc_task_manager()->execute_and_wait(q); | |
| 173 } | |
| 174 | |
| 175 void RefProcTaskExecutor::execute(EnqueueTask& task) | |
| 176 { | |
| 177 ParallelScavengeHeap* heap = PSParallelCompact::gc_heap(); | |
| 178 uint parallel_gc_threads = heap->gc_task_manager()->workers(); | |
| 179 GCTaskQueue* q = GCTaskQueue::create(); | |
| 180 for(uint i=0; i<parallel_gc_threads; i++) { | |
| 181 q->enqueue(new RefEnqueueTaskProxy(task, i)); | |
| 182 } | |
| 183 PSParallelCompact::gc_task_manager()->execute_and_wait(q); | |
| 184 } | |
| 185 | |
| 186 // | |
| 187 // StealMarkingTask | |
| 188 // | |
| 189 | |
| 190 StealMarkingTask::StealMarkingTask(ParallelTaskTerminator* t) : | |
| 191 _terminator(t) {} | |
| 192 | |
| 193 void StealMarkingTask::do_it(GCTaskManager* manager, uint which) { | |
| 194 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 195 | |
| 196 NOT_PRODUCT(TraceTime tm("StealMarkingTask", | |
| 197 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 198 | |
| 199 ParCompactionManager* cm = | |
| 200 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 201 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 202 | |
| 203 oop obj = NULL; | |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
204 ObjArrayTask task; |
| 0 | 205 int random_seed = 17; |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
206 do { |
|
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
207 while (ParCompactionManager::steal_objarray(which, &random_seed, task)) { |
|
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
208 objArrayKlass* const k = (objArrayKlass*)task.obj()->blueprint(); |
|
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
209 k->oop_follow_contents(cm, task.obj(), task.index()); |
|
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
210 cm->follow_marking_stacks(); |
|
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
211 } |
|
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
212 while (ParCompactionManager::steal(which, &random_seed, obj)) { |
| 0 | 213 obj->follow_contents(cm); |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
214 cm->follow_marking_stacks(); |
| 0 | 215 } |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1000
diff
changeset
|
216 } while (!terminator()->offer_termination()); |
| 0 | 217 } |
| 218 | |
| 219 // | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
220 // StealRegionCompactionTask |
| 0 | 221 // |
| 222 | |
| 223 | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
224 StealRegionCompactionTask::StealRegionCompactionTask(ParallelTaskTerminator* t): |
|
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
225 _terminator(t) {} |
| 0 | 226 |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
227 void StealRegionCompactionTask::do_it(GCTaskManager* manager, uint which) { |
| 0 | 228 assert(Universe::heap()->is_gc_active(), "called outside gc"); |
| 229 | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
230 NOT_PRODUCT(TraceTime tm("StealRegionCompactionTask", |
| 0 | 231 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); |
| 232 | |
| 233 ParCompactionManager* cm = | |
| 234 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 235 | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
236 // Has to drain stacks first because there may be regions on |
| 0 | 237 // preloaded onto the stack and this thread may never have |
| 238 // done a draining task. Are the draining tasks needed? | |
| 239 | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
240 cm->drain_region_stacks(); |
| 0 | 241 |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
242 size_t region_index = 0; |
| 0 | 243 int random_seed = 17; |
| 244 | |
| 245 // If we're the termination task, try 10 rounds of stealing before | |
| 246 // setting the termination flag | |
| 247 | |
| 248 while(true) { | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
249 if (ParCompactionManager::steal(which, &random_seed, region_index)) { |
|
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
250 PSParallelCompact::fill_and_update_region(cm, region_index); |
|
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
251 cm->drain_region_stacks(); |
| 0 | 252 } else { |
| 253 if (terminator()->offer_termination()) { | |
| 254 break; | |
| 255 } | |
| 256 // Go around again. | |
| 257 } | |
| 258 } | |
| 259 return; | |
| 260 } | |
| 261 | |
| 262 UpdateDensePrefixTask::UpdateDensePrefixTask( | |
| 263 PSParallelCompact::SpaceId space_id, | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
264 size_t region_index_start, |
|
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
265 size_t region_index_end) : |
|
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
266 _space_id(space_id), _region_index_start(region_index_start), |
|
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
267 _region_index_end(region_index_end) {} |
| 0 | 268 |
| 269 void UpdateDensePrefixTask::do_it(GCTaskManager* manager, uint which) { | |
| 270 | |
| 271 NOT_PRODUCT(TraceTime tm("UpdateDensePrefixTask", | |
| 272 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 273 | |
| 274 ParCompactionManager* cm = | |
| 275 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 276 | |
| 277 PSParallelCompact::update_and_deadwood_in_dense_prefix(cm, | |
| 278 _space_id, | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
279 _region_index_start, |
|
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
280 _region_index_end); |
| 0 | 281 } |
| 282 | |
| 283 void DrainStacksCompactionTask::do_it(GCTaskManager* manager, uint which) { | |
| 284 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 285 | |
| 286 NOT_PRODUCT(TraceTime tm("DrainStacksCompactionTask", | |
| 287 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 288 | |
| 289 ParCompactionManager* cm = | |
| 290 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 291 | |
|
375
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
292 // Process any regions already in the compaction managers stacks. |
|
81cd571500b0
6725697: par compact - rename class ChunkData to RegionData
jcoomes
parents:
196
diff
changeset
|
293 cm->drain_region_stacks(); |
| 0 | 294 } |