truffle: src/share/vm/gc_implementation/parallelScavenge/psCompactionManager.hpp annotate

annotate src/share/vm/gc_implementation/parallelScavenge/psCompactionManager.hpp @ 8733:9def4075da6d

8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate(). Reviewed-by: johnc, ysr Contributed-by: tamao <tao.mao@oracle.com>

author	tamao
date	Tue, 05 Mar 2013 15:36:56 -0800
parents	da91efe96a93
children

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	2 * Copyright (c) 2005, 2012, 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 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSCOMPACTIONMANAGER_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSCOMPACTIONMANAGER_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	28 #include "memory/allocation.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	29 #include "utilities/stack.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	30 #include "utilities/taskqueue.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	31
0 a61af66fc99e Initial load duke parents: diff changeset	32 // Move to some global location
a61af66fc99e Initial load duke parents: diff changeset	33 #define HAS_BEEN_MOVED 0x1501d01d
a61af66fc99e Initial load duke parents: diff changeset	34 // End move to some global location
a61af66fc99e Initial load duke parents: diff changeset	35
a61af66fc99e Initial load duke parents: diff changeset	36
a61af66fc99e Initial load duke parents: diff changeset	37 class MutableSpace;
a61af66fc99e Initial load duke parents: diff changeset	38 class PSOldGen;
a61af66fc99e Initial load duke parents: diff changeset	39 class ParCompactionManager;
a61af66fc99e Initial load duke parents: diff changeset	40 class ObjectStartArray;
a61af66fc99e Initial load duke parents: diff changeset	41 class ParallelCompactData;
a61af66fc99e Initial load duke parents: diff changeset	42 class ParMarkBitMap;
a61af66fc99e Initial load duke parents: diff changeset	43
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 4099 diff changeset	44 class ParCompactionManager : public CHeapObj<mtGC> {
0 a61af66fc99e Initial load duke parents: diff changeset	45 friend class ParallelTaskTerminator;
a61af66fc99e Initial load duke parents: diff changeset	46 friend class ParMarkBitMap;
a61af66fc99e Initial load duke parents: diff changeset	47 friend class PSParallelCompact;
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	48 friend class StealRegionCompactionTask;
0 a61af66fc99e Initial load duke parents: diff changeset	49 friend class UpdateAndFillClosure;
a61af66fc99e Initial load duke parents: diff changeset	50 friend class RefProcTaskExecutor;
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	51 friend class IdleGCTask;
0 a61af66fc99e Initial load duke parents: diff changeset	52
a61af66fc99e Initial load duke parents: diff changeset	53 public:
a61af66fc99e Initial load duke parents: diff changeset	54
a61af66fc99e Initial load duke parents: diff changeset	55 // ------------------------ Don't putback if not needed
a61af66fc99e Initial load duke parents: diff changeset	56 // Actions that the compaction manager should take.
a61af66fc99e Initial load duke parents: diff changeset	57 enum Action {
a61af66fc99e Initial load duke parents: diff changeset	58 Update,
a61af66fc99e Initial load duke parents: diff changeset	59 Copy,
a61af66fc99e Initial load duke parents: diff changeset	60 UpdateAndCopy,
a61af66fc99e Initial load duke parents: diff changeset	61 CopyAndUpdate,
a61af66fc99e Initial load duke parents: diff changeset	62 NotValid
a61af66fc99e Initial load duke parents: diff changeset	63 };
a61af66fc99e Initial load duke parents: diff changeset	64 // ------------------------ End don't putback if not needed
a61af66fc99e Initial load duke parents: diff changeset	65
a61af66fc99e Initial load duke parents: diff changeset	66 private:
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	67 // 32-bit: 4K * 8 = 32KiB; 64-bit: 8K * 16 = 128KiB
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	68 #define QUEUE_SIZE (1 << NOT_LP64(12) LP64_ONLY(13))
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 4099 diff changeset	69 typedef OverflowTaskQueue<ObjArrayTask, mtGC, QUEUE_SIZE> ObjArrayTaskQueue;
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 4099 diff changeset	70 typedef GenericTaskQueueSet<ObjArrayTaskQueue, mtGC> ObjArrayTaskQueueSet;
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	71 #undef QUEUE_SIZE
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	72
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	73 static ParCompactionManager** _manager_array;
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	74 static OopTaskQueueSet* _stack_array;
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	75 static ObjArrayTaskQueueSet* _objarray_queues;
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	76 static ObjectStartArray* _start_array;
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	77 static RegionTaskQueueSet* _region_array;
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	78 static PSOldGen* _old_gen;
0 a61af66fc99e Initial load duke parents: diff changeset	79
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	80 private:
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 4099 diff changeset	81 OverflowTaskQueue<oop, mtGC> _marking_stack;
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	82 ObjArrayTaskQueue _objarray_stack;
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	83
0 a61af66fc99e Initial load duke parents: diff changeset	84 // Is there a way to reuse the _marking_stack for the
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	85 // saving empty regions? For now just create a different
0 a61af66fc99e Initial load duke parents: diff changeset	86 // type of TaskQueue.
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	87 RegionTaskQueue* _region_stack;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	88
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	89 static RegionTaskQueue** _region_list;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	90 // Index in _region_list for current _region_stack.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	91 uint _region_stack_index;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	92
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	93 // Indexes of recycled region stacks/overflow stacks
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	94 // Stacks of regions to be compacted are embedded in the tasks doing
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	95 // the compaction. A thread that executes the task extracts the
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	96 // region stack and drains it. These threads keep these region
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	97 // stacks for use during compaction task stealing. If a thread
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	98 // gets a second draining task, it pushed its current region stack
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	99 // index into the array _recycled_stack_index and gets a new
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	100 // region stack from the task. A thread that is executing a
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	101 // compaction stealing task without ever having executing a
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	102 // draining task, will get a region stack from _recycled_stack_index.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	103 //
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	104 // Array of indexes into the array of region stacks.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	105 static uint* _recycled_stack_index;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	106 // The index into _recycled_stack_index of the last region stack index
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	107 // pushed. If -1, there are no entries into _recycled_stack_index.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	108 static int _recycled_top;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	109 // The index into _recycled_stack_index of the last region stack index
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	110 // popped. If -1, there has not been any entry popped.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	111 static int _recycled_bottom;
0 a61af66fc99e Initial load duke parents: diff changeset	112
a61af66fc99e Initial load duke parents: diff changeset	113 static ParMarkBitMap* _mark_bitmap;
a61af66fc99e Initial load duke parents: diff changeset	114
a61af66fc99e Initial load duke parents: diff changeset	115 Action _action;
a61af66fc99e Initial load duke parents: diff changeset	116
a61af66fc99e Initial load duke parents: diff changeset	117 static PSOldGen* old_gen() { return _old_gen; }
a61af66fc99e Initial load duke parents: diff changeset	118 static ObjectStartArray* start_array() { return _start_array; }
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	119 static OopTaskQueueSet* stack_array() { return _stack_array; }
0 a61af66fc99e Initial load duke parents: diff changeset	120
a61af66fc99e Initial load duke parents: diff changeset	121 static void initialize(ParMarkBitMap* mbm);
a61af66fc99e Initial load duke parents: diff changeset	122
a61af66fc99e Initial load duke parents: diff changeset	123 protected:
a61af66fc99e Initial load duke parents: diff changeset	124 // Array of tasks. Needed by the ParallelTaskTerminator.
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	125 static RegionTaskQueueSet* region_array() { return _region_array; }
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 4099 diff changeset	126 OverflowTaskQueue<oop, mtGC>* marking_stack() { return &_marking_stack; }
0 a61af66fc99e Initial load duke parents: diff changeset	127
a61af66fc99e Initial load duke parents: diff changeset	128 // Pushes onto the marking stack. If the marking stack is full,
a61af66fc99e Initial load duke parents: diff changeset	129 // pushes onto the overflow stack.
a61af66fc99e Initial load duke parents: diff changeset	130 void stack_push(oop obj);
a61af66fc99e Initial load duke parents: diff changeset	131 // Do not implement an equivalent stack_pop. Deal with the
a61af66fc99e Initial load duke parents: diff changeset	132 // marking stack and overflow stack directly.
a61af66fc99e Initial load duke parents: diff changeset	133
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	134 public:
0 a61af66fc99e Initial load duke parents: diff changeset	135 Action action() { return _action; }
a61af66fc99e Initial load duke parents: diff changeset	136 void set_action(Action v) { _action = v; }
a61af66fc99e Initial load duke parents: diff changeset	137
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	138 RegionTaskQueue* region_stack() { return _region_stack; }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	139 void set_region_stack(RegionTaskQueue* v) { _region_stack = v; }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	140
0 a61af66fc99e Initial load duke parents: diff changeset	141 inline static ParCompactionManager* manager_array(int index);
a61af66fc99e Initial load duke parents: diff changeset	142
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	143 inline static RegionTaskQueue* region_list(int index) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	144 return _region_list[index];
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	145 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	146
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	147 uint region_stack_index() { return _region_stack_index; }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	148 void set_region_stack_index(uint v) { _region_stack_index = v; }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	149
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	150 // Pop and push unique reusable stack index
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	151 static int pop_recycled_stack_index();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	152 static void push_recycled_stack_index(uint v);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	153 static void reset_recycled_stack_index() {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	154 _recycled_bottom = _recycled_top = -1;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	155 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	156
0 a61af66fc99e Initial load duke parents: diff changeset	157 ParCompactionManager();
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	158 ~ParCompactionManager();
0 a61af66fc99e Initial load duke parents: diff changeset	159
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	160 // Pushes onto the region stack at the given index. If the
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	161 // region stack is full,
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	162 // pushes onto the region overflow stack.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	163 static void region_list_push(uint stack_index, size_t region_index);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	164 static void verify_region_list_empty(uint stack_index);
0 a61af66fc99e Initial load duke parents: diff changeset	165 ParMarkBitMap* mark_bitmap() { return _mark_bitmap; }
a61af66fc99e Initial load duke parents: diff changeset	166
a61af66fc99e Initial load duke parents: diff changeset	167 // void drain_stacks();
a61af66fc99e Initial load duke parents: diff changeset	168
a61af66fc99e Initial load duke parents: diff changeset	169 bool should_update();
a61af66fc99e Initial load duke parents: diff changeset	170 bool should_copy();
a61af66fc99e Initial load duke parents: diff changeset	171
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	172 // Save for later processing. Must not fail.
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	173 inline void push(oop obj) { _marking_stack.push(obj); }
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	174 inline void push_objarray(oop objarray, size_t index);
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	175 inline void push_region(size_t index);
0 a61af66fc99e Initial load duke parents: diff changeset	176
a61af66fc99e Initial load duke parents: diff changeset	177 // Access function for compaction managers
a61af66fc99e Initial load duke parents: diff changeset	178 static ParCompactionManager* gc_thread_compaction_manager(int index);
a61af66fc99e Initial load duke parents: diff changeset	179
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	180 static bool steal(int queue_num, int* seed, oop& t) {
0 a61af66fc99e Initial load duke parents: diff changeset	181 return stack_array()->steal(queue_num, seed, t);
a61af66fc99e Initial load duke parents: diff changeset	182 }
a61af66fc99e Initial load duke parents: diff changeset	183
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	184 static bool steal_objarray(int queue_num, int* seed, ObjArrayTask& t) {
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	185 return _objarray_queues->steal(queue_num, seed, t);
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	186 }
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	187
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	188 static bool steal(int queue_num, int* seed, size_t& region) {
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	189 return region_array()->steal(queue_num, seed, region);
0 a61af66fc99e Initial load duke parents: diff changeset	190 }
a61af66fc99e Initial load duke parents: diff changeset	191
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	192 // Process tasks remaining on any marking stack
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	193 void follow_marking_stacks();
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	194 inline bool marking_stacks_empty() const;
0 a61af66fc99e Initial load duke parents: diff changeset	195
a61af66fc99e Initial load duke parents: diff changeset	196 // Process tasks remaining on any stack
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	197 void drain_region_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	198
a61af66fc99e Initial load duke parents: diff changeset	199 };
a61af66fc99e Initial load duke parents: diff changeset	200
a61af66fc99e Initial load duke parents: diff changeset	201 inline ParCompactionManager* ParCompactionManager::manager_array(int index) {
a61af66fc99e Initial load duke parents: diff changeset	202 assert(_manager_array != NULL, "access of NULL manager_array");
a61af66fc99e Initial load duke parents: diff changeset	203 assert(index >= 0 && index <= (int)ParallelGCThreads,
a61af66fc99e Initial load duke parents: diff changeset	204 "out of range manager_array access");
a61af66fc99e Initial load duke parents: diff changeset	205 return _manager_array[index];
a61af66fc99e Initial load duke parents: diff changeset	206 }
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	207
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	208 bool ParCompactionManager::marking_stacks_empty() const {
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	209 return _marking_stack.is_empty() && _objarray_stack.is_empty();
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	210 }
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	211
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	212 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSCOMPACTIONMANAGER_HPP

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/parallelScavenge/psCompactionManager.hpp @ 8733:9def4075da6d