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

annotate src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp @ 6009:dde53abda3d6

7160613: VerifyRememberedSets doesn't work with CompressedOops Summary: use load_decode_heap_oop instead of load_decode_heap_oop_not_null Reviewed-by: tonyp, brutisso

author	stefank
date	Wed, 11 Apr 2012 16:18:45 +0200
parents	bca17e38de00
children	da91efe96a93

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	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 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);
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	57
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	60
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	63
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	66 }
a61af66fc99e Initial load duke parents: diff changeset	67
a61af66fc99e Initial load duke parents: diff changeset	68
a61af66fc99e Initial load duke parents: diff changeset	69 void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	70 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	71
a61af66fc99e Initial load duke parents: diff changeset	72 NOT_PRODUCT(TraceTime tm("MarkFromRootsTask",
a61af66fc99e Initial load duke parents: diff changeset	73 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	74 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	75 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	76 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
a61af66fc99e Initial load duke parents: diff changeset	77
a61af66fc99e Initial load duke parents: diff changeset	78 switch (_root_type) {
a61af66fc99e Initial load duke parents: diff changeset	79 case universe:
a61af66fc99e Initial load duke parents: diff changeset	80 Universe::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	81 break;
a61af66fc99e Initial load duke parents: diff changeset	82
a61af66fc99e Initial load duke parents: diff changeset	83 case jni_handles:
a61af66fc99e Initial load duke parents: diff changeset	84 JNIHandles::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	85 break;
a61af66fc99e Initial load duke parents: diff changeset	86
a61af66fc99e Initial load duke parents: diff changeset	87 case threads:
a61af66fc99e Initial load duke parents: diff changeset	88 {
a61af66fc99e Initial load duke parents: diff changeset	89 ResourceMark rm;
989 148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	90 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	91 Threads::oops_do(&mark_and_push_closure, &each_active_code_blob);
0 a61af66fc99e Initial load duke parents: diff changeset	92 }
a61af66fc99e Initial load duke parents: diff changeset	93 break;
a61af66fc99e Initial load duke parents: diff changeset	94
a61af66fc99e Initial load duke parents: diff changeset	95 case object_synchronizer:
a61af66fc99e Initial load duke parents: diff changeset	96 ObjectSynchronizer::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	97 break;
a61af66fc99e Initial load duke parents: diff changeset	98
a61af66fc99e Initial load duke parents: diff changeset	99 case flat_profiler:
a61af66fc99e Initial load duke parents: diff changeset	100 FlatProfiler::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	101 break;
a61af66fc99e Initial load duke parents: diff changeset	102
a61af66fc99e Initial load duke parents: diff changeset	103 case management:
a61af66fc99e Initial load duke parents: diff changeset	104 Management::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	105 break;
a61af66fc99e Initial load duke parents: diff changeset	106
a61af66fc99e Initial load duke parents: diff changeset	107 case jvmti:
a61af66fc99e Initial load duke parents: diff changeset	108 JvmtiExport::oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	109 break;
a61af66fc99e Initial load duke parents: diff changeset	110
a61af66fc99e Initial load duke parents: diff changeset	111 case system_dictionary:
a61af66fc99e Initial load duke parents: diff changeset	112 SystemDictionary::always_strong_oops_do(&mark_and_push_closure);
a61af66fc99e Initial load duke parents: diff changeset	113 break;
a61af66fc99e Initial load duke parents: diff changeset	114
989 148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	115 case code_cache:
148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	116 // 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	117 //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	118 break;
148e5441d916 6863023: need non-perm oops in code cache for JSR 292 jrose parents: 375 diff changeset	119
0 a61af66fc99e Initial load duke parents: diff changeset	120 default:
a61af66fc99e Initial load duke parents: diff changeset	121 fatal("Unknown root type");
a61af66fc99e Initial load duke parents: diff changeset	122 }
a61af66fc99e Initial load duke parents: diff changeset	123
a61af66fc99e Initial load duke parents: diff changeset	124 // Do the real work
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	125 cm->follow_marking_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	126 }
a61af66fc99e Initial load duke parents: diff changeset	127
a61af66fc99e Initial load duke parents: diff changeset	128
a61af66fc99e Initial load duke parents: diff changeset	129 //
a61af66fc99e Initial load duke parents: diff changeset	130 // RefProcTaskProxy
a61af66fc99e Initial load duke parents: diff changeset	131 //
a61af66fc99e Initial load duke parents: diff changeset	132
a61af66fc99e Initial load duke parents: diff changeset	133 void RefProcTaskProxy::do_it(GCTaskManager* manager, uint which)
a61af66fc99e Initial load duke parents: diff changeset	134 {
a61af66fc99e Initial load duke parents: diff changeset	135 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	136
a61af66fc99e Initial load duke parents: diff changeset	137 NOT_PRODUCT(TraceTime tm("RefProcTask",
a61af66fc99e Initial load duke parents: diff changeset	138 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	139 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	140 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	141 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
a61af66fc99e Initial load duke parents: diff changeset	142 PSParallelCompact::FollowStackClosure follow_stack_closure(cm);
a61af66fc99e Initial load duke parents: diff changeset	143 _rp_task.work(_work_id, *PSParallelCompact::is_alive_closure(),
a61af66fc99e Initial load duke parents: diff changeset	144 mark_and_push_closure, follow_stack_closure);
a61af66fc99e Initial load duke parents: diff changeset	145 }
a61af66fc99e Initial load duke parents: diff changeset	146
a61af66fc99e Initial load duke parents: diff changeset	147 //
a61af66fc99e Initial load duke parents: diff changeset	148 // RefProcTaskExecutor
a61af66fc99e Initial load duke parents: diff changeset	149 //
a61af66fc99e Initial load duke parents: diff changeset	150
a61af66fc99e Initial load duke parents: diff changeset	151 void RefProcTaskExecutor::execute(ProcessTask& task)
a61af66fc99e Initial load duke parents: diff changeset	152 {
a61af66fc99e Initial load duke parents: diff changeset	153 ParallelScavengeHeap* heap = PSParallelCompact::gc_heap();
a61af66fc99e Initial load duke parents: diff changeset	154 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	155 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	156 RegionTaskQueueSet* qset = ParCompactionManager::region_array();
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	157 ParallelTaskTerminator terminator(active_gc_threads, qset);
0 a61af66fc99e Initial load duke parents: diff changeset	158 GCTaskQueue* q = GCTaskQueue::create();
a61af66fc99e Initial load duke parents: diff changeset	159 for(uint i=0; i<parallel_gc_threads; i++) {
a61af66fc99e Initial load duke parents: diff changeset	160 q->enqueue(new RefProcTaskProxy(task, i));
a61af66fc99e Initial load duke parents: diff changeset	161 }
a61af66fc99e Initial load duke parents: diff changeset	162 if (task.marks_oops_alive()) {
a61af66fc99e Initial load duke parents: diff changeset	163 if (parallel_gc_threads>1) {
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	164 for (uint j=0; j<active_gc_threads; j++) {
0 a61af66fc99e Initial load duke parents: diff changeset	165 q->enqueue(new StealMarkingTask(&terminator));
a61af66fc99e Initial load duke parents: diff changeset	166 }
a61af66fc99e Initial load duke parents: diff changeset	167 }
a61af66fc99e Initial load duke parents: diff changeset	168 }
a61af66fc99e Initial load duke parents: diff changeset	169 PSParallelCompact::gc_task_manager()->execute_and_wait(q);
a61af66fc99e Initial load duke parents: diff changeset	170 }
a61af66fc99e Initial load duke parents: diff changeset	171
a61af66fc99e Initial load duke parents: diff changeset	172 void RefProcTaskExecutor::execute(EnqueueTask& task)
a61af66fc99e Initial load duke parents: diff changeset	173 {
a61af66fc99e Initial load duke parents: diff changeset	174 ParallelScavengeHeap* heap = PSParallelCompact::gc_heap();
a61af66fc99e Initial load duke parents: diff changeset	175 uint parallel_gc_threads = heap->gc_task_manager()->workers();
a61af66fc99e Initial load duke parents: diff changeset	176 GCTaskQueue* q = GCTaskQueue::create();
a61af66fc99e Initial load duke parents: diff changeset	177 for(uint i=0; i<parallel_gc_threads; i++) {
a61af66fc99e Initial load duke parents: diff changeset	178 q->enqueue(new RefEnqueueTaskProxy(task, i));
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 //
a61af66fc99e Initial load duke parents: diff changeset	184 // StealMarkingTask
a61af66fc99e Initial load duke parents: diff changeset	185 //
a61af66fc99e Initial load duke parents: diff changeset	186
a61af66fc99e Initial load duke parents: diff changeset	187 StealMarkingTask::StealMarkingTask(ParallelTaskTerminator* t) :
a61af66fc99e Initial load duke parents: diff changeset	188 _terminator(t) {}
a61af66fc99e Initial load duke parents: diff changeset	189
a61af66fc99e Initial load duke parents: diff changeset	190 void StealMarkingTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	191 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	192
a61af66fc99e Initial load duke parents: diff changeset	193 NOT_PRODUCT(TraceTime tm("StealMarkingTask",
a61af66fc99e Initial load duke parents: diff changeset	194 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	195
a61af66fc99e Initial load duke parents: diff changeset	196 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	197 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	198 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
a61af66fc99e Initial load duke parents: diff changeset	199
a61af66fc99e Initial load duke parents: diff changeset	200 oop obj = NULL;
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	201 ObjArrayTask task;
0 a61af66fc99e Initial load duke parents: diff changeset	202 int random_seed = 17;
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	203 do {
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	204 while (ParCompactionManager::steal_objarray(which, &random_seed, task)) {
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	205 objArrayKlass* const k = (objArrayKlass*)task.obj()->blueprint();
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	206 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	207 cm->follow_marking_stacks();
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	208 }
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	209 while (ParCompactionManager::steal(which, &random_seed, obj)) {
0 a61af66fc99e Initial load duke parents: diff changeset	210 obj->follow_contents(cm);
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	211 cm->follow_marking_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	212 }
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 1000 diff changeset	213 } while (!terminator()->offer_termination());
0 a61af66fc99e Initial load duke parents: diff changeset	214 }
a61af66fc99e Initial load duke parents: diff changeset	215
a61af66fc99e Initial load duke parents: diff changeset	216 //
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	217 // StealRegionCompactionTask
0 a61af66fc99e Initial load duke parents: diff changeset	218 //
a61af66fc99e Initial load duke parents: diff changeset	219
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	220 StealRegionCompactionTask::StealRegionCompactionTask(ParallelTaskTerminator* t):
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	221 _terminator(t) {}
0 a61af66fc99e Initial load duke parents: diff changeset	222
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	223 void StealRegionCompactionTask::do_it(GCTaskManager* manager, uint which) {
0 a61af66fc99e Initial load duke parents: diff changeset	224 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	225
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	226 NOT_PRODUCT(TraceTime tm("StealRegionCompactionTask",
0 a61af66fc99e Initial load duke parents: diff changeset	227 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	228
a61af66fc99e Initial load duke parents: diff changeset	229 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	230 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	231
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	232
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	233 // 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	234 // 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	235 uint which_stack_index;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	236 bool use_all_workers = manager->all_workers_active();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	237 if (use_all_workers) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	238 which_stack_index = which;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	239 assert(manager->active_workers() == ParallelGCThreads,
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	240 err_msg("all_workers_active has been incorrectly set: "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	241 " active %d ParallelGCThreads %d", manager->active_workers(),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	242 ParallelGCThreads));
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	243 } else {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	244 which_stack_index = ParCompactionManager::pop_recycled_stack_index();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	245 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	246
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	247 cm->set_region_stack_index(which_stack_index);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	248 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	249 if (TraceDynamicGCThreads) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	250 gclog_or_tty->print_cr("StealRegionCompactionTask::do_it "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	251 "region_stack_index %d region_stack = 0x%x "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	252 " empty (%d) use all workers %d",
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	253 which_stack_index, ParCompactionManager::region_list(which_stack_index),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	254 cm->region_stack()->is_empty(),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	255 use_all_workers);
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
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	258 // Has to drain stacks first because there may be regions on
0 a61af66fc99e Initial load duke parents: diff changeset	259 // preloaded onto the stack and this thread may never have
a61af66fc99e Initial load duke parents: diff changeset	260 // done a draining task. Are the draining tasks needed?
a61af66fc99e Initial load duke parents: diff changeset	261
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	262 cm->drain_region_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	263
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	264 size_t region_index = 0;
0 a61af66fc99e Initial load duke parents: diff changeset	265 int random_seed = 17;
a61af66fc99e Initial load duke parents: diff changeset	266
a61af66fc99e Initial load duke parents: diff changeset	267 // If we're the termination task, try 10 rounds of stealing before
a61af66fc99e Initial load duke parents: diff changeset	268 // setting the termination flag
a61af66fc99e Initial load duke parents: diff changeset	269
a61af66fc99e Initial load duke parents: diff changeset	270 while(true) {
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	271 if (ParCompactionManager::steal(which, &random_seed, region_index)) {
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	272 PSParallelCompact::fill_and_update_region(cm, region_index);
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 } else {
a61af66fc99e Initial load duke parents: diff changeset	275 if (terminator()->offer_termination()) {
a61af66fc99e Initial load duke parents: diff changeset	276 break;
a61af66fc99e Initial load duke parents: diff changeset	277 }
a61af66fc99e Initial load duke parents: diff changeset	278 // Go around again.
a61af66fc99e Initial load duke parents: diff changeset	279 }
a61af66fc99e Initial load duke parents: diff changeset	280 }
a61af66fc99e Initial load duke parents: diff changeset	281 return;
a61af66fc99e Initial load duke parents: diff changeset	282 }
a61af66fc99e Initial load duke parents: diff changeset	283
a61af66fc99e Initial load duke parents: diff changeset	284 UpdateDensePrefixTask::UpdateDensePrefixTask(
a61af66fc99e Initial load duke parents: diff changeset	285 PSParallelCompact::SpaceId space_id,
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	286 size_t region_index_start,
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	287 size_t region_index_end) :
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	288 _space_id(space_id), _region_index_start(region_index_start),
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	289 _region_index_end(region_index_end) {}
0 a61af66fc99e Initial load duke parents: diff changeset	290
a61af66fc99e Initial load duke parents: diff changeset	291 void UpdateDensePrefixTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	292
a61af66fc99e Initial load duke parents: diff changeset	293 NOT_PRODUCT(TraceTime tm("UpdateDensePrefixTask",
a61af66fc99e Initial load duke parents: diff changeset	294 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	295
a61af66fc99e Initial load duke parents: diff changeset	296 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	297 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	298
a61af66fc99e Initial load duke parents: diff changeset	299 PSParallelCompact::update_and_deadwood_in_dense_prefix(cm,
a61af66fc99e Initial load duke parents: diff changeset	300 _space_id,
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	301 _region_index_start,
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	302 _region_index_end);
0 a61af66fc99e Initial load duke parents: diff changeset	303 }
a61af66fc99e Initial load duke parents: diff changeset	304
a61af66fc99e Initial load duke parents: diff changeset	305 void DrainStacksCompactionTask::do_it(GCTaskManager* manager, uint which) {
a61af66fc99e Initial load duke parents: diff changeset	306 assert(Universe::heap()->is_gc_active(), "called outside gc");
a61af66fc99e Initial load duke parents: diff changeset	307
a61af66fc99e Initial load duke parents: diff changeset	308 NOT_PRODUCT(TraceTime tm("DrainStacksCompactionTask",
a61af66fc99e Initial load duke parents: diff changeset	309 PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
a61af66fc99e Initial load duke parents: diff changeset	310
a61af66fc99e Initial load duke parents: diff changeset	311 ParCompactionManager* cm =
a61af66fc99e Initial load duke parents: diff changeset	312 ParCompactionManager::gc_thread_compaction_manager(which);
a61af66fc99e Initial load duke parents: diff changeset	313
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	314 uint which_stack_index;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	315 bool use_all_workers = manager->all_workers_active();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	316 if (use_all_workers) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	317 which_stack_index = which;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	318 assert(manager->active_workers() == ParallelGCThreads,
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	319 err_msg("all_workers_active has been incorrectly set: "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	320 " active %d ParallelGCThreads %d", manager->active_workers(),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	321 ParallelGCThreads));
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	322 } else {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	323 which_stack_index = stack_index();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	324 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	325
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	326 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	327 if (TraceDynamicGCThreads) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	328 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	329 "which_stack_index = %d/empty(%d) "
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	330 "use all workers %d",
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	331 which, which_stack_index,
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	332 cm->region_stack()->is_empty(),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	333 use_all_workers);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	334 }
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 cm->set_region_stack_index(which_stack_index);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	337
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	338 // Process any regions already in the compaction managers stacks.
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 196 diff changeset	339 cm->drain_region_stacks();
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	340
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	341 assert(cm->region_stack()->is_empty(), "Not empty");
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	342
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	343 if (!use_all_workers) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	344 // Always give up the region stack.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	345 assert(cm->region_stack() ==
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	346 ParCompactionManager::region_list(cm->region_stack_index()),
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	347 "region_stack and region_stack_index are inconsistent");
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	348 ParCompactionManager::push_recycled_stack_index(cm->region_stack_index());
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	349
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	350 if (TraceDynamicGCThreads) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	351 void* old_region_stack = (void*) cm->region_stack();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	352 int old_region_stack_index = cm->region_stack_index();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	353 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	354 old_region_stack, old_region_stack_index);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	355 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	356
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	357 cm->set_region_stack(NULL);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	358 cm->set_region_stack_index((uint)max_uintx);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 3915 diff changeset	359 }
0 a61af66fc99e Initial load duke parents: diff changeset	360 }

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp @ 6009:dde53abda3d6