truffle: src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp annotate

annotate src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp @ 10265:92ef81e2f571

8003557: NPG: Klass* const k should be const Klass* k. Summary: With NPG, const KlassOop klass which is in fact a definition converted to Klass* const, which is not the original intention. The right usage is converting them to const Klass*. Reviewed-by: coleenp, kvn Contributed-by: yumin.qi@oracle.com

author	minqi
date	Fri, 10 May 2013 08:27:30 -0700
parents	d0aa87f04bd5
children	eda078b01c65

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 7179 diff changeset	2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	26 #include "classfile/systemDictionary.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	27 #include "code/codeCache.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	28 #include "gc_implementation/parallelScavenge/pcTasks.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	29 #include "gc_implementation/parallelScavenge/psParallelCompact.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	30 #include "gc_interface/collectedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	31 #include "memory/universe.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	32 #include "oops/objArrayKlass.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	33 #include "oops/oop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	34 #include "oops/oop.pcgc.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	35 #include "prims/jvmtiExport.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	36 #include "runtime/fprofiler.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	37 #include "runtime/jniHandles.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	38 #include "runtime/thread.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	39 #include "runtime/vmThread.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	40 #include "services/management.hpp"
0 a61af66fc99e Initial load duke parents: diff changeset	41
a61af66fc99e Initial load duke parents: diff changeset	42 //
a61af66fc99e Initial load duke parents: diff changeset	43 // ThreadRootsMarkingTask
a61af66fc99e Initial load duke parents: diff changeset	44 //
a61af66fc99e Initial load duke parents: diff changeset	45
a61af66fc99e Initial load duke parents: diff changeset	46 void ThreadRootsMarkingTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	47 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	48
a61af66fc99e Initial load duke parents: diff changeset	49 ResourceMark rm;
a61af66fc99e Initial load duke parents: diff changeset	50
a61af66fc99e Initial load duke parents: diff changeset	51 NOT_PRODUCT(TraceTime tm("ThreadRootsMarkingTask",
a61af66fc99e Initial load duke parents: diff changeset	52 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	53 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	54 ParCompactionManager::gc_thread_compaction_manager(which);
7179 d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	55
0 a61af66fc99e Initial load duke parents: diff changeset	56 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
7179 d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	57 CLDToOopClosure mark_and_push_from_clds(&mark_and_push_closure, true);
989 148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	58 CodeBlobToOopClosure mark_and_push_in_blobs(&mark_and_push_closure, /do_marking=/ true);
0 a61af66fc99e Initial load duke parents: diff changeset	59
a61af66fc99e Initial load duke parents: diff changeset	60 if (_java_thread != NULL)
7179 d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	61 _java_thread->oops_do(
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	62 &mark_and_push_closure,
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	63 &mark_and_push_from_clds,
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	64 &mark_and_push_in_blobs);
0 a61af66fc99e Initial load duke parents: diff changeset	65
a61af66fc99e Initial load duke parents: diff changeset	66 if (_vm_thread != NULL)
7179 d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	67 _vm_thread->oops_do(
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	68 &mark_and_push_closure,
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	69 &mark_and_push_from_clds,
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	70 &mark_and_push_in_blobs);
0 a61af66fc99e Initial load duke parents: diff changeset	71
a61af66fc99e Initial load duke parents: diff changeset	72 // Do the real work
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	73 cm->follow_marking_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	74 }
a61af66fc99e Initial load duke parents: diff changeset	75
a61af66fc99e Initial load duke parents: diff changeset	76
a61af66fc99e Initial load duke parents: diff changeset	77 void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	78 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	79
a61af66fc99e Initial load duke parents: diff changeset	80 NOT_PRODUCT(TraceTime tm("MarkFromRootsTask",
a61af66fc99e Initial load duke parents: diff changeset	81 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	82 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	83 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	84 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 4095 diff changeset	85 PSParallelCompact::FollowKlassClosure follow_klass_closure(&mark_and_push_closure);
0 a61af66fc99e Initial load duke parents: diff changeset	86
a61af66fc99e Initial load duke parents: diff changeset	87 switch (_root_type) {
a61af66fc99e Initial load duke parents: diff changeset	88 case universe:
a61af66fc99e Initial load duke parents: diff changeset	89 Universe::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	90 break;
a61af66fc99e Initial load duke parents: diff changeset	91
a61af66fc99e Initial load duke parents: diff changeset	92 case jni_handles:
a61af66fc99e Initial load duke parents: diff changeset	93 JNIHandles::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	94 break;
a61af66fc99e Initial load duke parents: diff changeset	95
a61af66fc99e Initial load duke parents: diff changeset	96 case threads:
a61af66fc99e Initial load duke parents: diff changeset	97 {
a61af66fc99e Initial load duke parents: diff changeset	98 ResourceMark rm;
989 148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	99 CodeBlobToOopClosure each_active_code_blob(&mark_and_push_closure, /do_marking=/ true);
7179 d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	100 CLDToOopClosure mark_and_push_from_cld(&mark_and_push_closure);
d0aa87f04bd5 8003720: NPG: Method in interpreter stack frame can be deallocated stefank parents: 6831 diff changeset	101 Threads::oops_do(&mark_and_push_closure, &mark_and_push_from_cld, &each_active_code_blob);
0 a61af66fc99e Initial load duke parents: diff changeset	102 }
a61af66fc99e Initial load duke parents: diff changeset	103 break;
a61af66fc99e Initial load duke parents: diff changeset	104
a61af66fc99e Initial load duke parents: diff changeset	105 case object_synchronizer:
a61af66fc99e Initial load duke parents: diff changeset	106 ObjectSynchronizer::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	107 break;
a61af66fc99e Initial load duke parents: diff changeset	108
a61af66fc99e Initial load duke parents: diff changeset	109 case flat_profiler:
a61af66fc99e Initial load duke parents: diff changeset	110 FlatProfiler::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	111 break;
a61af66fc99e Initial load duke parents: diff changeset	112
a61af66fc99e Initial load duke parents: diff changeset	113 case management:
a61af66fc99e Initial load duke parents: diff changeset	114 Management::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	115 break;
a61af66fc99e Initial load duke parents: diff changeset	116
a61af66fc99e Initial load duke parents: diff changeset	117 case jvmti:
a61af66fc99e Initial load duke parents: diff changeset	118 JvmtiExport::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	119 break;
a61af66fc99e Initial load duke parents: diff changeset	120
a61af66fc99e Initial load duke parents: diff changeset	121 case system_dictionary:
a61af66fc99e Initial load duke parents: diff changeset	122 SystemDictionary::always_strong_oops_do(&mark_and_push_closure);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 4095 diff changeset	123 ClassLoaderDataGraph::always_strong_oops_do(&mark_and_push_closure, &follow_klass_closure, true);
0 a61af66fc99e Initial load duke parents: diff changeset	124 break;
a61af66fc99e Initial load duke parents: diff changeset	125
989 148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	126 case code_cache:
148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	127 // 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	128 //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	129 break;
148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	130
0 a61af66fc99e Initial load duke parents: diff changeset	131 default:
a61af66fc99e Initial load duke parents: diff changeset	132 fatal("Unknown root type");
a61af66fc99e Initial load duke parents: diff changeset	133 }
a61af66fc99e Initial load duke parents: diff changeset	134
a61af66fc99e Initial load duke parents: diff changeset	135 // Do the real work
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	136 cm->follow_marking_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	137 }
a61af66fc99e Initial load duke parents: diff changeset	138
a61af66fc99e Initial load duke parents: diff changeset	139
a61af66fc99e Initial load duke parents: diff changeset	140 //
a61af66fc99e Initial load duke parents: diff changeset	141 // RefProcTaskProxy
a61af66fc99e Initial load duke parents: diff changeset	142 //
a61af66fc99e Initial load duke parents: diff changeset	143
a61af66fc99e Initial load duke parents: diff changeset	144 void RefProcTaskProxy::do_it(GCTaskManager* manager, uint which)
a61af66fc99e Initial load duke parents: diff changeset	145 {
a61af66fc99e Initial load duke parents: diff changeset	146 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	147
a61af66fc99e Initial load duke parents: diff changeset	148 NOT_PRODUCT(TraceTime tm("RefProcTask",
a61af66fc99e Initial load duke parents: diff changeset	149 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	150 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	151 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	152 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
a61af66fc99e Initial load duke parents: diff changeset	153 PSParallelCompact::FollowStackClosure follow_stack_closure(cm);
a61af66fc99e Initial load duke parents: diff changeset	154 _rp_task.work(_work_id, *PSParallelCompact::is_alive_closure(),
a61af66fc99e Initial load duke parents: diff changeset	155 mark_and_push_closure, follow_stack_closure);
a61af66fc99e Initial load duke parents: diff changeset	156 }
a61af66fc99e Initial load duke parents: diff changeset	157
a61af66fc99e Initial load duke parents: diff changeset	158 //
a61af66fc99e Initial load duke parents: diff changeset	159 // RefProcTaskExecutor
a61af66fc99e Initial load duke parents: diff changeset	160 //
a61af66fc99e Initial load duke parents: diff changeset	161
a61af66fc99e Initial load duke parents: diff changeset	162 void RefProcTaskExecutor::execute(ProcessTask& task)
a61af66fc99e Initial load duke parents: diff changeset	163 {
a61af66fc99e Initial load duke parents: diff changeset	164 ParallelScavengeHeap* heap = PSParallelCompact::gc_heap();
a61af66fc99e Initial load duke parents: diff changeset	165 uint parallel_gc_threads = heap->gc_task_manager()->workers();
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	166 uint active_gc_threads = heap->gc_task_manager()->active_workers();
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	167 RegionTaskQueueSet* qset = ParCompactionManager::region_array();
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	168 ParallelTaskTerminator terminator(active_gc_threads, qset);
0 a61af66fc99e Initial load duke parents: diff changeset	169 GCTaskQueue* q = GCTaskQueue::create();
a61af66fc99e Initial load duke parents: diff changeset	170 for(uint i=0; i<parallel_gc_threads; i++) {
a61af66fc99e Initial load duke parents: diff changeset	171 q->enqueue(new RefProcTaskProxy(task, i));
a61af66fc99e Initial load duke parents: diff changeset	172 }
a61af66fc99e Initial load duke parents: diff changeset	173 if (task.marks_oops_alive()) {
a61af66fc99e Initial load duke parents: diff changeset	174 if (parallel_gc_threads>1) {
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	175 for (uint j=0; j<active_gc_threads; j++) {
0 a61af66fc99e Initial load duke parents: diff changeset	176 q->enqueue(new StealMarkingTask(&terminator));
a61af66fc99e Initial load duke parents: diff changeset	177 }
a61af66fc99e Initial load duke parents: diff changeset	178 }
a61af66fc99e Initial load duke parents: diff changeset	179 }
a61af66fc99e Initial load duke parents: diff changeset	180 PSParallelCompact::gc_task_manager()->execute_and_wait(q);
a61af66fc99e Initial load duke parents: diff changeset	181 }
a61af66fc99e Initial load duke parents: diff changeset	182
a61af66fc99e Initial load duke parents: diff changeset	183 void RefProcTaskExecutor::execute(EnqueueTask& task)
a61af66fc99e Initial load duke parents: diff changeset	184 {
a61af66fc99e Initial load duke parents: diff changeset	185 ParallelScavengeHeap* heap = PSParallelCompact::gc_heap();
a61af66fc99e Initial load duke parents: diff changeset	186 uint parallel_gc_threads = heap->gc_task_manager()->workers();
a61af66fc99e Initial load duke parents: diff changeset	187 GCTaskQueue* q = GCTaskQueue::create();
a61af66fc99e Initial load duke parents: diff changeset	188 for(uint i=0; i<parallel_gc_threads; i++) {
a61af66fc99e Initial load duke parents: diff changeset	189 q->enqueue(new RefEnqueueTaskProxy(task, i));
a61af66fc99e Initial load duke parents: diff changeset	190 }
a61af66fc99e Initial load duke parents: diff changeset	191 PSParallelCompact::gc_task_manager()->execute_and_wait(q);
a61af66fc99e Initial load duke parents: diff changeset	192 }
a61af66fc99e Initial load duke parents: diff changeset	193
a61af66fc99e Initial load duke parents: diff changeset	194 //
a61af66fc99e Initial load duke parents: diff changeset	195 // StealMarkingTask
a61af66fc99e Initial load duke parents: diff changeset	196 //
a61af66fc99e Initial load duke parents: diff changeset	197
a61af66fc99e Initial load duke parents: diff changeset	198 StealMarkingTask::StealMarkingTask(ParallelTaskTerminator* t) :
a61af66fc99e Initial load duke parents: diff changeset	199 _terminator(t) {}
a61af66fc99e Initial load duke parents: diff changeset	200
a61af66fc99e Initial load duke parents: diff changeset	201 void StealMarkingTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	202 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	203
a61af66fc99e Initial load duke parents: diff changeset	204 NOT_PRODUCT(TraceTime tm("StealMarkingTask",
a61af66fc99e Initial load duke parents: diff changeset	205 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	206
a61af66fc99e Initial load duke parents: diff changeset	207 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	208 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	209 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
a61af66fc99e Initial load duke parents: diff changeset	210
a61af66fc99e Initial load duke parents: diff changeset	211 oop obj = NULL;
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	212 ObjArrayTask task;
0 a61af66fc99e Initial load duke parents: diff changeset	213 int random_seed = 17;
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	214 do {
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	215 while (ParCompactionManager::steal_objarray(which, &random_seed, task)) {
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 7179 diff changeset	216 ObjArrayKlass* k = (ObjArrayKlass*)task.obj()->klass();
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	217 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	218 cm->follow_marking_stacks();
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	219 }
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	220 while (ParCompactionManager::steal(which, &random_seed, obj)) {
0 a61af66fc99e Initial load duke parents: diff changeset	221 obj->follow_contents(cm);
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	222 cm->follow_marking_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	223 }
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	224 } while (!terminator()->offer_termination());
0 a61af66fc99e Initial load duke parents: diff changeset	225 }
a61af66fc99e Initial load duke parents: diff changeset	226
a61af66fc99e Initial load duke parents: diff changeset	227 //
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	228 // StealRegionCompactionTask
0 a61af66fc99e Initial load duke parents: diff changeset	229 //
a61af66fc99e Initial load duke parents: diff changeset	230
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	231 StealRegionCompactionTask::StealRegionCompactionTask(ParallelTaskTerminator* t):
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	232 _terminator(t) {}
0 a61af66fc99e Initial load duke parents: diff changeset	233
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	234 void StealRegionCompactionTask::do_it(GCTaskManager* manager, uint which) {
0 a61af66fc99e Initial load duke parents: diff changeset	235 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	236
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	237 NOT_PRODUCT(TraceTime tm("StealRegionCompactionTask",
0 a61af66fc99e Initial load duke parents: diff changeset	238 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	239
a61af66fc99e Initial load duke parents: diff changeset	240 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	241 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	242
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	243
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	244 // If not all threads are active, get a draining stack
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	245 // from the list. Else, just use this threads draining stack.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	246 uint which_stack_index;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	247 bool use_all_workers = manager->all_workers_active();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	248 if (use_all_workers) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	249 which_stack_index = which;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	250 assert(manager->active_workers() == ParallelGCThreads,
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	251 err_msg("all_workers_active has been incorrectly set: "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	252 " active %d ParallelGCThreads %d", manager->active_workers(),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	253 ParallelGCThreads));
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	254 } else {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	255 which_stack_index = ParCompactionManager::pop_recycled_stack_index();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	256 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	257
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	258 cm->set_region_stack_index(which_stack_index);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	259 cm->set_region_stack(ParCompactionManager::region_list(which_stack_index));
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	260 if (TraceDynamicGCThreads) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	261 gclog_or_tty->print_cr("StealRegionCompactionTask::do_it "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	262 "region_stack_index %d region_stack = 0x%x "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	263 " empty (%d) use all workers %d",
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	264 which_stack_index, ParCompactionManager::region_list(which_stack_index),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	265 cm->region_stack()->is_empty(),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	266 use_all_workers);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	267 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	268
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	269 // Has to drain stacks first because there may be regions on
0 a61af66fc99e Initial load duke parents: diff changeset	270 // preloaded onto the stack and this thread may never have
a61af66fc99e Initial load duke parents: diff changeset	271 // done a draining task. Are the draining tasks needed?
a61af66fc99e Initial load duke parents: diff changeset	272
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	273 cm->drain_region_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	274
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	275 size_t region_index = 0;
0 a61af66fc99e Initial load duke parents: diff changeset	276 int random_seed = 17;
a61af66fc99e Initial load duke parents: diff changeset	277
a61af66fc99e Initial load duke parents: diff changeset	278 // If we're the termination task, try 10 rounds of stealing before
a61af66fc99e Initial load duke parents: diff changeset	279 // setting the termination flag
a61af66fc99e Initial load duke parents: diff changeset	280
a61af66fc99e Initial load duke parents: diff changeset	281 while(true) {
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	282 if (ParCompactionManager::steal(which, &random_seed, region_index)) {
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	283 PSParallelCompact::fill_and_update_region(cm, region_index);
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	284 cm->drain_region_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	285 } else {
a61af66fc99e Initial load duke parents: diff changeset	286 if (terminator()->offer_termination()) {
a61af66fc99e Initial load duke parents: diff changeset	287 break;
a61af66fc99e Initial load duke parents: diff changeset	288 }
a61af66fc99e Initial load duke parents: diff changeset	289 // Go around again.
a61af66fc99e Initial load duke parents: diff changeset	290 }
a61af66fc99e Initial load duke parents: diff changeset	291 }
a61af66fc99e Initial load duke parents: diff changeset	292 return;
a61af66fc99e Initial load duke parents: diff changeset	293 }
a61af66fc99e Initial load duke parents: diff changeset	294
a61af66fc99e Initial load duke parents: diff changeset	295 UpdateDensePrefixTask::UpdateDensePrefixTask(
a61af66fc99e Initial load duke parents: diff changeset	296 PSParallelCompact::SpaceId space_id,
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	297 size_t region_index_start,
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	298 size_t region_index_end) :
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	299 _space_id(space_id), _region_index_start(region_index_start),
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	300 _region_index_end(region_index_end) {}
0 a61af66fc99e Initial load duke parents: diff changeset	301
a61af66fc99e Initial load duke parents: diff changeset	302 void UpdateDensePrefixTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	303
a61af66fc99e Initial load duke parents: diff changeset	304 NOT_PRODUCT(TraceTime tm("UpdateDensePrefixTask",
a61af66fc99e Initial load duke parents: diff changeset	305 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	306
a61af66fc99e Initial load duke parents: diff changeset	307 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	308 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	309
a61af66fc99e Initial load duke parents: diff changeset	310 PSParallelCompact::update_and_deadwood_in_dense_prefix(cm,
a61af66fc99e Initial load duke parents: diff changeset	311 _space_id,
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	312 _region_index_start,
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	313 _region_index_end);
0 a61af66fc99e Initial load duke parents: diff changeset	314 }
a61af66fc99e Initial load duke parents: diff changeset	315
a61af66fc99e Initial load duke parents: diff changeset	316 void DrainStacksCompactionTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	317 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	318
a61af66fc99e Initial load duke parents: diff changeset	319 NOT_PRODUCT(TraceTime tm("DrainStacksCompactionTask",
a61af66fc99e Initial load duke parents: diff changeset	320 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	321
a61af66fc99e Initial load duke parents: diff changeset	322 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	323 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	324
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	325 uint which_stack_index;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	326 bool use_all_workers = manager->all_workers_active();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	327 if (use_all_workers) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	328 which_stack_index = which;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	329 assert(manager->active_workers() == ParallelGCThreads,
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	330 err_msg("all_workers_active has been incorrectly set: "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	331 " active %d ParallelGCThreads %d", manager->active_workers(),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	332 ParallelGCThreads));
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	333 } else {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	334 which_stack_index = stack_index();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	335 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	336
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	337 cm->set_region_stack(ParCompactionManager::region_list(which_stack_index));
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	338 if (TraceDynamicGCThreads) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	339 gclog_or_tty->print_cr("DrainStacksCompactionTask::do_it which = %d "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	340 "which_stack_index = %d/empty(%d) "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	341 "use all workers %d",
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	342 which, which_stack_index,
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	343 cm->region_stack()->is_empty(),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	344 use_all_workers);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	345 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	346
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	347 cm->set_region_stack_index(which_stack_index);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	348
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	349 // Process any regions already in the compaction managers stacks.
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	350 cm->drain_region_stacks();
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	351
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	352 assert(cm->region_stack()->is_empty(), "Not empty");
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	353
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	354 if (!use_all_workers) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	355 // Always give up the region stack.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	356 assert(cm->region_stack() ==
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	357 ParCompactionManager::region_list(cm->region_stack_index()),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	358 "region_stack and region_stack_index are inconsistent");
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	359 ParCompactionManager::push_recycled_stack_index(cm->region_stack_index());
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	360
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	361 if (TraceDynamicGCThreads) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	362 void* old_region_stack = (void*) cm->region_stack();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	363 int old_region_stack_index = cm->region_stack_index();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	364 gclog_or_tty->print_cr("Pushing region stack 0x%x/%d",
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	365 old_region_stack, old_region_stack_index);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	366 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	367
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	368 cm->set_region_stack(NULL);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	369 cm->set_region_stack_index((uint)max_uintx);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	370 }
0 a61af66fc99e Initial load duke parents: diff changeset	371 }

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp @ 10265:92ef81e2f571