Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp @ 113:ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
| author | coleenp |
|---|---|
| date | Sun, 13 Apr 2008 17:43:42 -0400 |
| parents | a61af66fc99e |
| children | d1605aabd0a1 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * Copyright 2005-2007 Sun Microsystems, Inc. All Rights Reserved. | |
| 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_pcTasks.cpp.incl" | |
| 27 | |
| 28 // | |
| 29 // ThreadRootsMarkingTask | |
| 30 // | |
| 31 | |
| 32 void ThreadRootsMarkingTask::do_it(GCTaskManager* manager, uint which) { | |
| 33 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 34 | |
| 35 ResourceMark rm; | |
| 36 | |
| 37 NOT_PRODUCT(TraceTime tm("ThreadRootsMarkingTask", | |
| 38 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 39 ParCompactionManager* cm = | |
| 40 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 41 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 42 | |
| 43 if (_java_thread != NULL) | |
| 44 _java_thread->oops_do(&mark_and_push_closure); | |
| 45 | |
| 46 if (_vm_thread != NULL) | |
| 47 _vm_thread->oops_do(&mark_and_push_closure); | |
| 48 | |
| 49 // Do the real work | |
| 50 cm->drain_marking_stacks(&mark_and_push_closure); | |
| 51 } | |
| 52 | |
| 53 | |
| 54 void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) { | |
| 55 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 56 | |
| 57 NOT_PRODUCT(TraceTime tm("MarkFromRootsTask", | |
| 58 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 59 ParCompactionManager* cm = | |
| 60 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 61 // cm->allocate_stacks(); | |
| 62 assert(cm->stacks_have_been_allocated(), | |
| 63 "Stack space has not been allocated"); | |
| 64 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 65 | |
| 66 switch (_root_type) { | |
| 67 case universe: | |
| 68 Universe::oops_do(&mark_and_push_closure); | |
| 69 break; | |
| 70 | |
| 71 case reference_processing: | |
| 72 ReferenceProcessor::oops_do(&mark_and_push_closure); | |
| 73 break; | |
| 74 | |
| 75 case jni_handles: | |
| 76 JNIHandles::oops_do(&mark_and_push_closure); | |
| 77 break; | |
| 78 | |
| 79 case threads: | |
| 80 { | |
| 81 ResourceMark rm; | |
| 82 Threads::oops_do(&mark_and_push_closure); | |
| 83 } | |
| 84 break; | |
| 85 | |
| 86 case object_synchronizer: | |
| 87 ObjectSynchronizer::oops_do(&mark_and_push_closure); | |
| 88 break; | |
| 89 | |
| 90 case flat_profiler: | |
| 91 FlatProfiler::oops_do(&mark_and_push_closure); | |
| 92 break; | |
| 93 | |
| 94 case management: | |
| 95 Management::oops_do(&mark_and_push_closure); | |
| 96 break; | |
| 97 | |
| 98 case jvmti: | |
| 99 JvmtiExport::oops_do(&mark_and_push_closure); | |
| 100 break; | |
| 101 | |
| 102 case system_dictionary: | |
| 103 SystemDictionary::always_strong_oops_do(&mark_and_push_closure); | |
| 104 break; | |
| 105 | |
| 106 case vm_symbols: | |
| 107 vmSymbols::oops_do(&mark_and_push_closure); | |
| 108 break; | |
| 109 | |
| 110 default: | |
| 111 fatal("Unknown root type"); | |
| 112 } | |
| 113 | |
| 114 // Do the real work | |
| 115 cm->drain_marking_stacks(&mark_and_push_closure); | |
| 116 // cm->deallocate_stacks(); | |
| 117 } | |
| 118 | |
| 119 | |
| 120 // | |
| 121 // RefProcTaskProxy | |
| 122 // | |
| 123 | |
| 124 void RefProcTaskProxy::do_it(GCTaskManager* manager, uint which) | |
| 125 { | |
| 126 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 127 | |
| 128 NOT_PRODUCT(TraceTime tm("RefProcTask", | |
| 129 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 130 ParCompactionManager* cm = | |
| 131 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 132 // cm->allocate_stacks(); | |
| 133 assert(cm->stacks_have_been_allocated(), | |
| 134 "Stack space has not been allocated"); | |
| 135 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 136 PSParallelCompact::FollowStackClosure follow_stack_closure(cm); | |
| 137 _rp_task.work(_work_id, *PSParallelCompact::is_alive_closure(), | |
| 138 mark_and_push_closure, follow_stack_closure); | |
| 139 } | |
| 140 | |
| 141 // | |
| 142 // RefProcTaskExecutor | |
| 143 // | |
| 144 | |
| 145 void RefProcTaskExecutor::execute(ProcessTask& task) | |
| 146 { | |
| 147 ParallelScavengeHeap* heap = PSParallelCompact::gc_heap(); | |
| 148 uint parallel_gc_threads = heap->gc_task_manager()->workers(); | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
149 ChunkTaskQueueSet* qset = ParCompactionManager::chunk_array(); |
| 0 | 150 ParallelTaskTerminator terminator(parallel_gc_threads, qset); |
| 151 GCTaskQueue* q = GCTaskQueue::create(); | |
| 152 for(uint i=0; i<parallel_gc_threads; i++) { | |
| 153 q->enqueue(new RefProcTaskProxy(task, i)); | |
| 154 } | |
| 155 if (task.marks_oops_alive()) { | |
| 156 if (parallel_gc_threads>1) { | |
| 157 for (uint j=0; j<parallel_gc_threads; j++) { | |
| 158 q->enqueue(new StealMarkingTask(&terminator)); | |
| 159 } | |
| 160 } | |
| 161 } | |
| 162 PSParallelCompact::gc_task_manager()->execute_and_wait(q); | |
| 163 } | |
| 164 | |
| 165 void RefProcTaskExecutor::execute(EnqueueTask& task) | |
| 166 { | |
| 167 ParallelScavengeHeap* heap = PSParallelCompact::gc_heap(); | |
| 168 uint parallel_gc_threads = heap->gc_task_manager()->workers(); | |
| 169 GCTaskQueue* q = GCTaskQueue::create(); | |
| 170 for(uint i=0; i<parallel_gc_threads; i++) { | |
| 171 q->enqueue(new RefEnqueueTaskProxy(task, i)); | |
| 172 } | |
| 173 PSParallelCompact::gc_task_manager()->execute_and_wait(q); | |
| 174 } | |
| 175 | |
| 176 // | |
| 177 // StealMarkingTask | |
| 178 // | |
| 179 | |
| 180 StealMarkingTask::StealMarkingTask(ParallelTaskTerminator* t) : | |
| 181 _terminator(t) {} | |
| 182 | |
| 183 void StealMarkingTask::do_it(GCTaskManager* manager, uint which) { | |
| 184 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 185 | |
| 186 NOT_PRODUCT(TraceTime tm("StealMarkingTask", | |
| 187 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 188 | |
| 189 ParCompactionManager* cm = | |
| 190 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 191 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 192 | |
| 193 oop obj = NULL; | |
| 194 int random_seed = 17; | |
| 195 while(true) { | |
| 196 if (ParCompactionManager::steal(which, &random_seed, obj)) { | |
| 197 obj->follow_contents(cm); | |
| 198 cm->drain_marking_stacks(&mark_and_push_closure); | |
| 199 } else { | |
| 200 if (terminator()->offer_termination()) { | |
| 201 break; | |
| 202 } | |
| 203 } | |
| 204 } | |
| 205 } | |
| 206 | |
| 207 // | |
| 208 // StealChunkCompactionTask | |
| 209 // | |
| 210 | |
| 211 | |
| 212 StealChunkCompactionTask::StealChunkCompactionTask(ParallelTaskTerminator* t) : | |
| 213 _terminator(t) {}; | |
| 214 | |
| 215 void StealChunkCompactionTask::do_it(GCTaskManager* manager, uint which) { | |
| 216 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 217 | |
| 218 NOT_PRODUCT(TraceTime tm("StealChunkCompactionTask", | |
| 219 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 220 | |
| 221 ParCompactionManager* cm = | |
| 222 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 223 | |
| 224 // Has to drain stacks first because there may be chunks on | |
| 225 // preloaded onto the stack and this thread may never have | |
| 226 // done a draining task. Are the draining tasks needed? | |
| 227 | |
| 228 cm->drain_chunk_stacks(); | |
| 229 | |
| 230 size_t chunk_index = 0; | |
| 231 int random_seed = 17; | |
| 232 | |
| 233 // If we're the termination task, try 10 rounds of stealing before | |
| 234 // setting the termination flag | |
| 235 | |
| 236 while(true) { | |
| 237 if (ParCompactionManager::steal(which, &random_seed, chunk_index)) { | |
| 238 PSParallelCompact::fill_and_update_chunk(cm, chunk_index); | |
| 239 cm->drain_chunk_stacks(); | |
| 240 } else { | |
| 241 if (terminator()->offer_termination()) { | |
| 242 break; | |
| 243 } | |
| 244 // Go around again. | |
| 245 } | |
| 246 } | |
| 247 return; | |
| 248 } | |
| 249 | |
| 250 UpdateDensePrefixTask::UpdateDensePrefixTask( | |
| 251 PSParallelCompact::SpaceId space_id, | |
| 252 size_t chunk_index_start, | |
| 253 size_t chunk_index_end) : | |
| 254 _space_id(space_id), _chunk_index_start(chunk_index_start), | |
| 255 _chunk_index_end(chunk_index_end) | |
| 256 {} | |
| 257 | |
| 258 void UpdateDensePrefixTask::do_it(GCTaskManager* manager, uint which) { | |
| 259 | |
| 260 NOT_PRODUCT(TraceTime tm("UpdateDensePrefixTask", | |
| 261 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 262 | |
| 263 ParCompactionManager* cm = | |
| 264 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 265 | |
| 266 PSParallelCompact::update_and_deadwood_in_dense_prefix(cm, | |
| 267 _space_id, | |
| 268 _chunk_index_start, | |
| 269 _chunk_index_end); | |
| 270 } | |
| 271 | |
| 272 void DrainStacksCompactionTask::do_it(GCTaskManager* manager, uint which) { | |
| 273 assert(Universe::heap()->is_gc_active(), "called outside gc"); | |
| 274 | |
| 275 NOT_PRODUCT(TraceTime tm("DrainStacksCompactionTask", | |
| 276 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty)); | |
| 277 | |
| 278 ParCompactionManager* cm = | |
| 279 ParCompactionManager::gc_thread_compaction_manager(which); | |
| 280 | |
| 281 // Process any chunks already in the compaction managers stacks. | |
| 282 cm->drain_chunk_stacks(); | |
| 283 } |