graal-jvmci-8: src/share/vm/gc_implementation/parallelScavenge/psCompactionManager.hpp annotate

annotate src/share/vm/gc_implementation/parallelScavenge/psCompactionManager.hpp @ 4095:bca17e38de00

6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads Summary: Select number of GC threads dynamically based on heap usage and number of Java threads Reviewed-by: johnc, ysr, jcoomes

author	jmasa
date	Tue, 09 Aug 2011 10:16:01 -0700
parents	f95d63e2154a
children	7913e93dca52

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	2 * Copyright (c) 2005, 2010, 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
a61af66fc99e Initial load duke parents: diff changeset	44 class ParCompactionManager : public CHeapObj {
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 VerifyUpdate,
a61af66fc99e Initial load duke parents: diff changeset	63 ResetObjects,
a61af66fc99e Initial load duke parents: diff changeset	64 NotValid
a61af66fc99e Initial load duke parents: diff changeset	65 };
a61af66fc99e Initial load duke parents: diff changeset	66 // ------------------------ End don't putback if not needed
a61af66fc99e Initial load duke parents: diff changeset	67
a61af66fc99e Initial load duke parents: diff changeset	68 private:
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	69 // 32-bit: 4K * 8 = 32KiB; 64-bit: 8K * 16 = 128KiB
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	70 #define QUEUE_SIZE (1 << NOT_LP64(12) LP64_ONLY(13))
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	71 typedef OverflowTaskQueue<ObjArrayTask, QUEUE_SIZE> ObjArrayTaskQueue;
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	72 typedef GenericTaskQueueSet<ObjArrayTaskQueue> ObjArrayTaskQueueSet;
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	73 #undef QUEUE_SIZE
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	74
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	75 static ParCompactionManager** _manager_array;
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	76 static OopTaskQueueSet* _stack_array;
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	77 static ObjArrayTaskQueueSet* _objarray_queues;
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	78 static ObjectStartArray* _start_array;
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	79 static RegionTaskQueueSet* _region_array;
81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	80 static PSOldGen* _old_gen;
0 a61af66fc99e Initial load duke parents: diff changeset	81
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	82 private:
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	83 OverflowTaskQueue<oop> _marking_stack;
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	84 ObjArrayTaskQueue _objarray_stack;
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	85
0 a61af66fc99e Initial load duke parents: diff changeset	86 // 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	87 // saving empty regions? For now just create a different
0 a61af66fc99e Initial load duke parents: diff changeset	88 // type of TaskQueue.
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	89 RegionTaskQueue* _region_stack;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	90
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	91 static RegionTaskQueue** _region_list;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	92 // Index in _region_list for current _region_stack.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	93 uint _region_stack_index;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	94
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	95 // Indexes of recycled region stacks/overflow stacks
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	96 // 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	97 // 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	98 // 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	99 // 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	100 // 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	101 // 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	102 // 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	103 // compaction stealing task without ever having executing a
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	104 // 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	105 //
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	106 // Array of indexes into the array of region stacks.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	107 static uint* _recycled_stack_index;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	108 // 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	109 // 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	110 static int _recycled_top;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	111 // 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	112 // 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	113 static int _recycled_bottom;
0 a61af66fc99e Initial load duke parents: diff changeset	114
1836 894b1d7c7e01 6423256: GC stacks should use a better data structure jcoomes parents: 1638 diff changeset	115 Stack<Klass*> _revisit_klass_stack;
894b1d7c7e01 6423256: GC stacks should use a better data structure jcoomes parents: 1638 diff changeset	116 Stack<DataLayout*> _revisit_mdo_stack;
894b1d7c7e01 6423256: GC stacks should use a better data structure jcoomes parents: 1638 diff changeset	117
0 a61af66fc99e Initial load duke parents: diff changeset	118 static ParMarkBitMap* _mark_bitmap;
a61af66fc99e Initial load duke parents: diff changeset	119
a61af66fc99e Initial load duke parents: diff changeset	120 Action _action;
a61af66fc99e Initial load duke parents: diff changeset	121
a61af66fc99e Initial load duke parents: diff changeset	122 static PSOldGen* old_gen() { return _old_gen; }
a61af66fc99e Initial load duke parents: diff changeset	123 static ObjectStartArray* start_array() { return _start_array; }
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	124 static OopTaskQueueSet* stack_array() { return _stack_array; }
0 a61af66fc99e Initial load duke parents: diff changeset	125
a61af66fc99e Initial load duke parents: diff changeset	126 static void initialize(ParMarkBitMap* mbm);
a61af66fc99e Initial load duke parents: diff changeset	127
a61af66fc99e Initial load duke parents: diff changeset	128 protected:
a61af66fc99e Initial load duke parents: diff changeset	129 // Array of tasks. Needed by the ParallelTaskTerminator.
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	130 static RegionTaskQueueSet* region_array() { return _region_array; }
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	131 OverflowTaskQueue<oop>* marking_stack() { return &_marking_stack; }
0 a61af66fc99e Initial load duke parents: diff changeset	132
a61af66fc99e Initial load duke parents: diff changeset	133 // Pushes onto the marking stack. If the marking stack is full,
a61af66fc99e Initial load duke parents: diff changeset	134 // pushes onto the overflow stack.
a61af66fc99e Initial load duke parents: diff changeset	135 void stack_push(oop obj);
a61af66fc99e Initial load duke parents: diff changeset	136 // Do not implement an equivalent stack_pop. Deal with the
a61af66fc99e Initial load duke parents: diff changeset	137 // marking stack and overflow stack directly.
a61af66fc99e Initial load duke parents: diff changeset	138
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	139 public:
0 a61af66fc99e Initial load duke parents: diff changeset	140 Action action() { return _action; }
a61af66fc99e Initial load duke parents: diff changeset	141 void set_action(Action v) { _action = v; }
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 RegionTaskQueue* region_stack() { return _region_stack; }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	144 void set_region_stack(RegionTaskQueue* v) { _region_stack = v; }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	145
0 a61af66fc99e Initial load duke parents: diff changeset	146 inline static ParCompactionManager* manager_array(int index);
a61af66fc99e Initial load duke parents: diff changeset	147
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	148 inline static RegionTaskQueue* region_list(int index) {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	149 return _region_list[index];
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	150 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	151
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	152 uint region_stack_index() { return _region_stack_index; }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	153 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	154
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	155 // Pop and push unique reusable stack index
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	156 static int pop_recycled_stack_index();
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	157 static void push_recycled_stack_index(uint v);
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	158 static void reset_recycled_stack_index() {
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	159 _recycled_bottom = _recycled_top = -1;
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	160 }
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	161
0 a61af66fc99e Initial load duke parents: diff changeset	162 ParCompactionManager();
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	163 ~ParCompactionManager();
0 a61af66fc99e Initial load duke parents: diff changeset	164
4095 bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	165 // 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	166 // region stack is full,
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	167 // pushes onto the region overflow stack.
bca17e38de00 6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads jmasa parents: 1972 diff changeset	168 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	169 static void verify_region_list_empty(uint stack_index);
0 a61af66fc99e Initial load duke parents: diff changeset	170 ParMarkBitMap* mark_bitmap() { return _mark_bitmap; }
a61af66fc99e Initial load duke parents: diff changeset	171
a61af66fc99e Initial load duke parents: diff changeset	172 // Take actions in preparation for a compaction.
a61af66fc99e Initial load duke parents: diff changeset	173 static void reset();
a61af66fc99e Initial load duke parents: diff changeset	174
a61af66fc99e Initial load duke parents: diff changeset	175 // void drain_stacks();
a61af66fc99e Initial load duke parents: diff changeset	176
a61af66fc99e Initial load duke parents: diff changeset	177 bool should_update();
a61af66fc99e Initial load duke parents: diff changeset	178 bool should_copy();
a61af66fc99e Initial load duke parents: diff changeset	179 bool should_verify_only();
a61af66fc99e Initial load duke parents: diff changeset	180 bool should_reset_only();
a61af66fc99e Initial load duke parents: diff changeset	181
1836 894b1d7c7e01 6423256: GC stacks should use a better data structure jcoomes parents: 1638 diff changeset	182 Stack<Klass> revisit_klass_stack() { return &_revisit_klass_stack; }
894b1d7c7e01 6423256: GC stacks should use a better data structure jcoomes parents: 1638 diff changeset	183 Stack<DataLayout> revisit_mdo_stack() { return &_revisit_mdo_stack; }
0 a61af66fc99e Initial load duke parents: diff changeset	184
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	185 // Save for later processing. Must not fail.
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	186 inline void push(oop obj) { _marking_stack.push(obj); }
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	187 inline void push_objarray(oop objarray, size_t index);
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	188 inline void push_region(size_t index);
0 a61af66fc99e Initial load duke parents: diff changeset	189
a61af66fc99e Initial load duke parents: diff changeset	190 // Access function for compaction managers
a61af66fc99e Initial load duke parents: diff changeset	191 static ParCompactionManager* gc_thread_compaction_manager(int index);
a61af66fc99e Initial load duke parents: diff changeset	192
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	193 static bool steal(int queue_num, int* seed, oop& t) {
0 a61af66fc99e Initial load duke parents: diff changeset	194 return stack_array()->steal(queue_num, seed, t);
a61af66fc99e Initial load duke parents: diff changeset	195 }
a61af66fc99e Initial load duke parents: diff changeset	196
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	197 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	198 return _objarray_queues->steal(queue_num, seed, t);
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	199 }
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	200
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	201 static bool steal(int queue_num, int* seed, size_t& region) {
b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	202 return region_array()->steal(queue_num, seed, region);
0 a61af66fc99e Initial load duke parents: diff changeset	203 }
a61af66fc99e Initial load duke parents: diff changeset	204
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	205 // Process tasks remaining on any marking stack
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	206 void follow_marking_stacks();
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	207 inline bool marking_stacks_empty() const;
0 a61af66fc99e Initial load duke parents: diff changeset	208
a61af66fc99e Initial load duke parents: diff changeset	209 // Process tasks remaining on any stack
375 81cd571500b0 6725697: par compact - rename class ChunkData to RegionData jcoomes parents: 0 diff changeset	210 void drain_region_stacks();
0 a61af66fc99e Initial load duke parents: diff changeset	211
a61af66fc99e Initial load duke parents: diff changeset	212 };
a61af66fc99e Initial load duke parents: diff changeset	213
a61af66fc99e Initial load duke parents: diff changeset	214 inline ParCompactionManager* ParCompactionManager::manager_array(int index) {
a61af66fc99e Initial load duke parents: diff changeset	215 assert(_manager_array != NULL, "access of NULL manager_array");
a61af66fc99e Initial load duke parents: diff changeset	216 assert(index >= 0 && index <= (int)ParallelGCThreads,
a61af66fc99e Initial load duke parents: diff changeset	217 "out of range manager_array access");
a61af66fc99e Initial load duke parents: diff changeset	218 return _manager_array[index];
a61af66fc99e Initial load duke parents: diff changeset	219 }
1311 2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	220
2a1472c30599 4396719: Mark Sweep stack overflow on deeply nested Object arrays jcoomes parents: 948 diff changeset	221 bool ParCompactionManager::marking_stacks_empty() const {
1638 b2a00dd3117c 6957084: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	222 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	223 }
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	224
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1836 diff changeset	225 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSCOMPACTIONMANAGER_HPP

Mercurial > hg > graal-jvmci-8

annotate src/share/vm/gc_implementation/parallelScavenge/psCompactionManager.hpp @ 4095:bca17e38de00