Thu, 14 Mar 2013 09:37:38 +0100
6733980: par compact - TraceGen1Time always shows 0.0000 seconds
Summary: Use the correct collector to retrieve accumulated gen1 trace time
Reviewed-by: johnc, jmasa
duke@435 | 1 | /* |
trims@2708 | 2 | * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PCTASKS_HPP |
stefank@2314 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PCTASKS_HPP |
stefank@2314 | 27 | |
stefank@2314 | 28 | #include "gc_implementation/parallelScavenge/gcTaskManager.hpp" |
stefank@2314 | 29 | #include "gc_implementation/parallelScavenge/psParallelCompact.hpp" |
stefank@2314 | 30 | #include "gc_implementation/parallelScavenge/psTasks.hpp" |
stefank@2314 | 31 | |
duke@435 | 32 | |
duke@435 | 33 | // Tasks for parallel compaction of the old generation |
duke@435 | 34 | // |
duke@435 | 35 | // Tasks are created and enqueued on a task queue. The |
duke@435 | 36 | // tasks for parallel old collector for marking objects |
duke@435 | 37 | // are MarkFromRootsTask and ThreadRootsMarkingTask. |
duke@435 | 38 | // |
duke@435 | 39 | // MarkFromRootsTask's are created |
duke@435 | 40 | // with a root group (e.g., jni_handles) and when the do_it() |
duke@435 | 41 | // method of a MarkFromRootsTask is executed, it starts marking |
duke@435 | 42 | // form it's root group. |
duke@435 | 43 | // |
duke@435 | 44 | // ThreadRootsMarkingTask's are created for each Java thread. When |
duke@435 | 45 | // the do_it() method of a ThreadRootsMarkingTask is executed, it |
duke@435 | 46 | // starts marking from the thread's roots. |
duke@435 | 47 | // |
duke@435 | 48 | // The enqueuing of the MarkFromRootsTask and ThreadRootsMarkingTask |
duke@435 | 49 | // do little more than create the task and put it on a queue. The |
duke@435 | 50 | // queue is a GCTaskQueue and threads steal tasks from this GCTaskQueue. |
duke@435 | 51 | // |
duke@435 | 52 | // In addition to the MarkFromRootsTask and ThreadRootsMarkingTask |
duke@435 | 53 | // tasks there are StealMarkingTask tasks. The StealMarkingTask's |
duke@435 | 54 | // steal a reference from the marking stack of another |
duke@435 | 55 | // thread and transitively marks the object of the reference |
duke@435 | 56 | // and internal references. After successfully stealing a reference |
duke@435 | 57 | // and marking it, the StealMarkingTask drains its marking stack |
duke@435 | 58 | // stack before attempting another steal. |
duke@435 | 59 | // |
duke@435 | 60 | // ThreadRootsMarkingTask |
duke@435 | 61 | // |
duke@435 | 62 | // This task marks from the roots of a single thread. This task |
duke@435 | 63 | // enables marking of thread roots in parallel. |
duke@435 | 64 | // |
duke@435 | 65 | |
duke@435 | 66 | class ParallelTaskTerminator; |
duke@435 | 67 | |
duke@435 | 68 | class ThreadRootsMarkingTask : public GCTask { |
duke@435 | 69 | private: |
duke@435 | 70 | JavaThread* _java_thread; |
duke@435 | 71 | VMThread* _vm_thread; |
duke@435 | 72 | public: |
duke@435 | 73 | ThreadRootsMarkingTask(JavaThread* root) : _java_thread(root), _vm_thread(NULL) {} |
duke@435 | 74 | ThreadRootsMarkingTask(VMThread* root) : _java_thread(NULL), _vm_thread(root) {} |
duke@435 | 75 | |
duke@435 | 76 | char* name() { return (char *)"thread-roots-marking-task"; } |
duke@435 | 77 | |
duke@435 | 78 | virtual void do_it(GCTaskManager* manager, uint which); |
duke@435 | 79 | }; |
duke@435 | 80 | |
duke@435 | 81 | |
duke@435 | 82 | // |
duke@435 | 83 | // MarkFromRootsTask |
duke@435 | 84 | // |
duke@435 | 85 | // This task marks from all the roots to all live |
duke@435 | 86 | // objects. |
duke@435 | 87 | // |
duke@435 | 88 | // |
duke@435 | 89 | |
duke@435 | 90 | class MarkFromRootsTask : public GCTask { |
duke@435 | 91 | public: |
duke@435 | 92 | enum RootType { |
duke@435 | 93 | universe = 1, |
duke@435 | 94 | jni_handles = 2, |
duke@435 | 95 | threads = 3, |
duke@435 | 96 | object_synchronizer = 4, |
duke@435 | 97 | flat_profiler = 5, |
duke@435 | 98 | management = 6, |
duke@435 | 99 | jvmti = 7, |
duke@435 | 100 | system_dictionary = 8, |
stefank@3115 | 101 | code_cache = 9 |
duke@435 | 102 | }; |
duke@435 | 103 | private: |
duke@435 | 104 | RootType _root_type; |
duke@435 | 105 | public: |
duke@435 | 106 | MarkFromRootsTask(RootType value) : _root_type(value) {} |
duke@435 | 107 | |
duke@435 | 108 | char* name() { return (char *)"mark-from-roots-task"; } |
duke@435 | 109 | |
duke@435 | 110 | virtual void do_it(GCTaskManager* manager, uint which); |
duke@435 | 111 | }; |
duke@435 | 112 | |
duke@435 | 113 | // |
duke@435 | 114 | // RefProcTaskProxy |
duke@435 | 115 | // |
duke@435 | 116 | // This task is used as a proxy to parallel reference processing tasks . |
duke@435 | 117 | // |
duke@435 | 118 | |
duke@435 | 119 | class RefProcTaskProxy : public GCTask { |
duke@435 | 120 | typedef AbstractRefProcTaskExecutor::ProcessTask ProcessTask; |
duke@435 | 121 | ProcessTask & _rp_task; |
duke@435 | 122 | uint _work_id; |
duke@435 | 123 | public: |
duke@435 | 124 | RefProcTaskProxy(ProcessTask & rp_task, uint work_id) |
duke@435 | 125 | : _rp_task(rp_task), |
duke@435 | 126 | _work_id(work_id) |
duke@435 | 127 | { } |
duke@435 | 128 | |
duke@435 | 129 | private: |
duke@435 | 130 | virtual char* name() { return (char *)"Process referents by policy in parallel"; } |
duke@435 | 131 | |
duke@435 | 132 | virtual void do_it(GCTaskManager* manager, uint which); |
duke@435 | 133 | }; |
duke@435 | 134 | |
duke@435 | 135 | |
duke@435 | 136 | |
duke@435 | 137 | // |
duke@435 | 138 | // RefEnqueueTaskProxy |
duke@435 | 139 | // |
duke@435 | 140 | // This task is used as a proxy to parallel reference processing tasks . |
duke@435 | 141 | // |
duke@435 | 142 | |
duke@435 | 143 | class RefEnqueueTaskProxy: public GCTask { |
duke@435 | 144 | typedef AbstractRefProcTaskExecutor::EnqueueTask EnqueueTask; |
duke@435 | 145 | EnqueueTask& _enq_task; |
duke@435 | 146 | uint _work_id; |
duke@435 | 147 | |
duke@435 | 148 | public: |
duke@435 | 149 | RefEnqueueTaskProxy(EnqueueTask& enq_task, uint work_id) |
duke@435 | 150 | : _enq_task(enq_task), |
duke@435 | 151 | _work_id(work_id) |
duke@435 | 152 | { } |
duke@435 | 153 | |
duke@435 | 154 | virtual char* name() { return (char *)"Enqueue reference objects in parallel"; } |
duke@435 | 155 | virtual void do_it(GCTaskManager* manager, uint which) |
duke@435 | 156 | { |
duke@435 | 157 | _enq_task.work(_work_id); |
duke@435 | 158 | } |
duke@435 | 159 | }; |
duke@435 | 160 | |
duke@435 | 161 | |
duke@435 | 162 | // |
duke@435 | 163 | // RefProcTaskExecutor |
duke@435 | 164 | // |
duke@435 | 165 | // Task executor is an interface for the reference processor to run |
duke@435 | 166 | // tasks using GCTaskManager. |
duke@435 | 167 | // |
duke@435 | 168 | |
duke@435 | 169 | class RefProcTaskExecutor: public AbstractRefProcTaskExecutor { |
duke@435 | 170 | virtual void execute(ProcessTask& task); |
duke@435 | 171 | virtual void execute(EnqueueTask& task); |
duke@435 | 172 | }; |
duke@435 | 173 | |
duke@435 | 174 | |
duke@435 | 175 | // |
duke@435 | 176 | // StealMarkingTask |
duke@435 | 177 | // |
duke@435 | 178 | // This task is used to distribute work to idle threads. |
duke@435 | 179 | // |
duke@435 | 180 | |
duke@435 | 181 | class StealMarkingTask : public GCTask { |
duke@435 | 182 | private: |
duke@435 | 183 | ParallelTaskTerminator* const _terminator; |
duke@435 | 184 | private: |
duke@435 | 185 | |
duke@435 | 186 | public: |
duke@435 | 187 | char* name() { return (char *)"steal-marking-task"; } |
duke@435 | 188 | |
duke@435 | 189 | StealMarkingTask(ParallelTaskTerminator* t); |
duke@435 | 190 | |
duke@435 | 191 | ParallelTaskTerminator* terminator() { return _terminator; } |
duke@435 | 192 | |
duke@435 | 193 | virtual void do_it(GCTaskManager* manager, uint which); |
duke@435 | 194 | }; |
duke@435 | 195 | |
duke@435 | 196 | // |
jcoomes@810 | 197 | // StealRegionCompactionTask |
duke@435 | 198 | // |
duke@435 | 199 | // This task is used to distribute work to idle threads. |
duke@435 | 200 | // |
duke@435 | 201 | |
jcoomes@810 | 202 | class StealRegionCompactionTask : public GCTask { |
duke@435 | 203 | private: |
duke@435 | 204 | ParallelTaskTerminator* const _terminator; |
duke@435 | 205 | public: |
jcoomes@810 | 206 | StealRegionCompactionTask(ParallelTaskTerminator* t); |
duke@435 | 207 | |
jcoomes@810 | 208 | char* name() { return (char *)"steal-region-task"; } |
duke@435 | 209 | ParallelTaskTerminator* terminator() { return _terminator; } |
duke@435 | 210 | |
duke@435 | 211 | virtual void do_it(GCTaskManager* manager, uint which); |
duke@435 | 212 | }; |
duke@435 | 213 | |
duke@435 | 214 | // |
duke@435 | 215 | // UpdateDensePrefixTask |
duke@435 | 216 | // |
duke@435 | 217 | // This task is used to update the dense prefix |
duke@435 | 218 | // of a space. |
duke@435 | 219 | // |
duke@435 | 220 | |
duke@435 | 221 | class UpdateDensePrefixTask : public GCTask { |
duke@435 | 222 | private: |
duke@435 | 223 | PSParallelCompact::SpaceId _space_id; |
jcoomes@810 | 224 | size_t _region_index_start; |
jcoomes@810 | 225 | size_t _region_index_end; |
duke@435 | 226 | |
duke@435 | 227 | public: |
duke@435 | 228 | char* name() { return (char *)"update-dense_prefix-task"; } |
duke@435 | 229 | |
duke@435 | 230 | UpdateDensePrefixTask(PSParallelCompact::SpaceId space_id, |
jcoomes@810 | 231 | size_t region_index_start, |
jcoomes@810 | 232 | size_t region_index_end); |
duke@435 | 233 | |
duke@435 | 234 | virtual void do_it(GCTaskManager* manager, uint which); |
duke@435 | 235 | }; |
duke@435 | 236 | |
duke@435 | 237 | // |
duke@435 | 238 | // DrainStacksCompactionTask |
duke@435 | 239 | // |
jcoomes@810 | 240 | // This task processes regions that have been added to the stacks of each |
duke@435 | 241 | // compaction manager. |
duke@435 | 242 | // |
duke@435 | 243 | // Trying to use one draining thread does not work because there are no |
duke@435 | 244 | // guarantees about which task will be picked up by which thread. For example, |
jcoomes@810 | 245 | // if thread A gets all the preloaded regions, thread A may not get a draining |
duke@435 | 246 | // task (they may all be done by other threads). |
duke@435 | 247 | // |
duke@435 | 248 | |
duke@435 | 249 | class DrainStacksCompactionTask : public GCTask { |
jmasa@2188 | 250 | uint _stack_index; |
jmasa@2188 | 251 | uint stack_index() { return _stack_index; } |
duke@435 | 252 | public: |
jmasa@2188 | 253 | DrainStacksCompactionTask(uint stack_index) : GCTask(), |
jmasa@2188 | 254 | _stack_index(stack_index) {}; |
jcoomes@810 | 255 | char* name() { return (char *)"drain-region-task"; } |
duke@435 | 256 | virtual void do_it(GCTaskManager* manager, uint which); |
duke@435 | 257 | }; |
stefank@2314 | 258 | |
stefank@2314 | 259 | #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PCTASKS_HPP |