Mercurial > hg > truffle
annotate src/share/vm/services/memSnapshot.cpp @ 6607:e5bf1c79ed5b
7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
Summary: Updated all related variables and methods to use NOT_PRODUCT macros
Reviewed-by: coleenp, acorn, kvn
| author | zgu |
|---|---|
| date | Tue, 14 Aug 2012 13:56:46 -0400 |
| parents | 4acebbe310e1 |
| children | 33143ee07800 |
| rev | line source |
|---|---|
| 6197 | 1 /* |
| 2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #include "precompiled.hpp" | |
| 26 #include "runtime/mutexLocker.hpp" | |
| 27 #include "utilities/decoder.hpp" | |
| 28 #include "services/memBaseline.hpp" | |
| 29 #include "services/memPtr.hpp" | |
| 30 #include "services/memPtrArray.hpp" | |
| 31 #include "services/memSnapshot.hpp" | |
| 32 #include "services/memTracker.hpp" | |
| 33 | |
| 34 | |
| 35 // stagging data groups the data of a VM memory range, so we can consolidate | |
| 36 // them into one record during the walk | |
| 37 bool StagingWalker::consolidate_vm_records(VMMemRegionEx* vm_rec) { | |
| 38 MemPointerRecord* cur = (MemPointerRecord*)_itr.current(); | |
| 39 assert(cur != NULL && cur->is_vm_pointer(), "not a virtual memory pointer"); | |
| 40 | |
| 41 jint cur_seq; | |
| 42 jint next_seq; | |
| 43 | |
| 44 bool trackCallsite = MemTracker::track_callsite(); | |
| 45 | |
| 46 if (trackCallsite) { | |
| 47 vm_rec->init((MemPointerRecordEx*)cur); | |
| 48 cur_seq = ((SeqMemPointerRecordEx*)cur)->seq(); | |
| 49 } else { | |
| 50 vm_rec->init((MemPointerRecord*)cur); | |
| 51 cur_seq = ((SeqMemPointerRecord*)cur)->seq(); | |
| 52 } | |
| 53 | |
| 54 // only can consolidate when we have allocation record, | |
| 55 // which contains virtual memory range | |
| 56 if (!cur->is_allocation_record()) { | |
| 57 _itr.next(); | |
| 58 return true; | |
| 59 } | |
| 60 | |
| 61 // allocation range | |
| 62 address base = cur->addr(); | |
| 63 address end = base + cur->size(); | |
| 64 | |
| 65 MemPointerRecord* next = (MemPointerRecord*)_itr.peek_next(); | |
| 66 // if the memory range is alive | |
| 67 bool live_vm_rec = true; | |
| 68 while (next != NULL && next->is_vm_pointer()) { | |
| 69 if (next->is_allocation_record()) { | |
| 70 assert(next->addr() >= base, "sorting order or overlapping"); | |
| 71 break; | |
| 72 } | |
| 73 | |
| 74 if (trackCallsite) { | |
| 75 next_seq = ((SeqMemPointerRecordEx*)next)->seq(); | |
| 76 } else { | |
| 77 next_seq = ((SeqMemPointerRecord*)next)->seq(); | |
| 78 } | |
| 79 | |
| 80 if (next_seq < cur_seq) { | |
| 81 _itr.next(); | |
| 82 next = (MemPointerRecord*)_itr.peek_next(); | |
| 83 continue; | |
| 84 } | |
| 85 | |
| 86 if (next->is_deallocation_record()) { | |
| 87 if (next->addr() == base && next->size() == cur->size()) { | |
| 88 // the virtual memory range has been released | |
| 89 _itr.next(); | |
| 90 live_vm_rec = false; | |
| 91 break; | |
| 92 } else if (next->addr() < end) { // partial release | |
| 93 vm_rec->partial_release(next->addr(), next->size()); | |
| 94 _itr.next(); | |
| 95 } else { | |
| 96 break; | |
| 97 } | |
| 98 } else if (next->is_commit_record()) { | |
| 99 if (next->addr() >= base && next->addr() + next->size() <= end) { | |
| 100 vm_rec->commit(next->size()); | |
| 101 _itr.next(); | |
| 102 } else { | |
| 103 assert(next->addr() >= base, "sorting order or overlapping"); | |
| 104 break; | |
| 105 } | |
| 106 } else if (next->is_uncommit_record()) { | |
| 107 if (next->addr() >= base && next->addr() + next->size() <= end) { | |
| 108 vm_rec->uncommit(next->size()); | |
| 109 _itr.next(); | |
| 110 } else { | |
| 111 assert(next->addr() >= end, "sorting order or overlapping"); | |
| 112 break; | |
| 113 } | |
| 114 } else if (next->is_type_tagging_record()) { | |
| 115 if (next->addr() >= base && next->addr() < end ) { | |
| 116 vm_rec->tag(next->flags()); | |
| 117 _itr.next(); | |
| 118 } else { | |
| 119 break; | |
| 120 } | |
| 121 } else { | |
| 122 assert(false, "unknown record type"); | |
| 123 } | |
| 124 next = (MemPointerRecord*)_itr.peek_next(); | |
| 125 } | |
| 126 _itr.next(); | |
| 127 return live_vm_rec; | |
| 128 } | |
| 129 | |
| 130 MemPointer* StagingWalker::next() { | |
| 131 MemPointerRecord* cur_p = (MemPointerRecord*)_itr.current(); | |
| 132 if (cur_p == NULL) { | |
| 133 _end_of_array = true; | |
| 134 return NULL; | |
| 135 } | |
| 136 | |
| 137 MemPointerRecord* next_p; | |
| 138 if (cur_p->is_vm_pointer()) { | |
| 139 _is_vm_record = true; | |
| 140 if (!consolidate_vm_records(&_vm_record)) { | |
| 141 return next(); | |
| 142 } | |
| 143 } else { // malloc-ed pointer | |
| 144 _is_vm_record = false; | |
| 145 next_p = (MemPointerRecord*)_itr.peek_next(); | |
| 146 if (next_p != NULL && next_p->addr() == cur_p->addr()) { | |
| 147 assert(cur_p->is_allocation_record(), "sorting order"); | |
| 148 assert(!next_p->is_allocation_record(), "sorting order"); | |
| 149 _itr.next(); | |
| 150 if (cur_p->seq() < next_p->seq()) { | |
| 151 cur_p = next_p; | |
| 152 } | |
| 153 } | |
| 154 if (MemTracker::track_callsite()) { | |
| 155 _malloc_record.init((MemPointerRecordEx*)cur_p); | |
| 156 } else { | |
| 157 _malloc_record.init((MemPointerRecord*)cur_p); | |
| 158 } | |
| 159 | |
| 160 _itr.next(); | |
| 161 } | |
| 162 return current(); | |
| 163 } | |
| 164 | |
| 165 MemSnapshot::MemSnapshot() { | |
| 166 if (MemTracker::track_callsite()) { | |
| 167 _alloc_ptrs = new (std::nothrow) MemPointerArrayImpl<MemPointerRecordEx>(); | |
| 168 _vm_ptrs = new (std::nothrow)MemPointerArrayImpl<VMMemRegionEx>(64, true); | |
| 169 _staging_area = new (std::nothrow)MemPointerArrayImpl<SeqMemPointerRecordEx>(); | |
| 170 } else { | |
| 171 _alloc_ptrs = new (std::nothrow) MemPointerArrayImpl<MemPointerRecord>(); | |
| 172 _vm_ptrs = new (std::nothrow)MemPointerArrayImpl<VMMemRegion>(64, true); | |
| 173 _staging_area = new (std::nothrow)MemPointerArrayImpl<SeqMemPointerRecord>(); | |
| 174 } | |
| 175 | |
|
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176 _lock = new (std::nothrow) Mutex(Monitor::max_nonleaf - 1, "memSnapshotLock"); |
| 6197 | 177 NOT_PRODUCT(_untracked_count = 0;) |
| 178 } | |
| 179 | |
| 180 MemSnapshot::~MemSnapshot() { | |
| 181 assert(MemTracker::shutdown_in_progress(), "native memory tracking still on"); | |
| 182 { | |
| 183 MutexLockerEx locker(_lock); | |
| 184 if (_staging_area != NULL) { | |
| 185 delete _staging_area; | |
| 186 _staging_area = NULL; | |
| 187 } | |
| 188 | |
| 189 if (_alloc_ptrs != NULL) { | |
| 190 delete _alloc_ptrs; | |
| 191 _alloc_ptrs = NULL; | |
| 192 } | |
| 193 | |
| 194 if (_vm_ptrs != NULL) { | |
| 195 delete _vm_ptrs; | |
| 196 _vm_ptrs = NULL; | |
| 197 } | |
| 198 } | |
| 199 | |
| 200 if (_lock != NULL) { | |
| 201 delete _lock; | |
| 202 _lock = NULL; | |
| 203 } | |
| 204 } | |
| 205 | |
| 206 void MemSnapshot::copy_pointer(MemPointerRecord* dest, const MemPointerRecord* src) { | |
| 207 assert(dest != NULL && src != NULL, "Just check"); | |
| 208 assert(dest->addr() == src->addr(), "Just check"); | |
| 209 | |
| 210 MEMFLAGS flags = dest->flags(); | |
| 211 | |
| 212 if (MemTracker::track_callsite()) { | |
| 213 *(MemPointerRecordEx*)dest = *(MemPointerRecordEx*)src; | |
| 214 } else { | |
| 215 *dest = *src; | |
| 216 } | |
| 217 } | |
| 218 | |
| 219 | |
| 220 // merge a per-thread memory recorder to the staging area | |
| 221 bool MemSnapshot::merge(MemRecorder* rec) { | |
| 222 assert(rec != NULL && !rec->out_of_memory(), "Just check"); | |
| 223 | |
| 224 // out of memory | |
| 225 if (_staging_area == NULL || _staging_area->out_of_memory()) { | |
| 226 return false; | |
| 227 } | |
| 228 | |
| 229 SequencedRecordIterator itr(rec->pointer_itr()); | |
| 230 | |
| 231 MutexLockerEx lock(_lock, true); | |
| 232 MemPointerIterator staging_itr(_staging_area); | |
| 233 MemPointerRecord *p1, *p2; | |
| 234 p1 = (MemPointerRecord*) itr.current(); | |
| 235 while (p1 != NULL) { | |
| 236 p2 = (MemPointerRecord*)staging_itr.locate(p1->addr()); | |
| 237 // we have not seen this memory block, so just add to staging area | |
| 238 if (p2 == NULL) { | |
| 239 if (!staging_itr.insert(p1)) { | |
| 240 return false; | |
| 241 } | |
| 242 } else if (p1->addr() == p2->addr()) { | |
| 243 MemPointerRecord* staging_next = (MemPointerRecord*)staging_itr.peek_next(); | |
| 244 // a memory block can have many tagging records, find right one to replace or | |
| 245 // right position to insert | |
| 246 while (staging_next != NULL && staging_next->addr() == p1->addr()) { | |
| 247 if ((staging_next->flags() & MemPointerRecord::tag_masks) <= | |
| 248 (p1->flags() & MemPointerRecord::tag_masks)) { | |
| 249 p2 = (MemPointerRecord*)staging_itr.next(); | |
| 250 staging_next = (MemPointerRecord*)staging_itr.peek_next(); | |
| 251 } else { | |
| 252 break; | |
| 253 } | |
| 254 } | |
| 255 int df = (p1->flags() & MemPointerRecord::tag_masks) - | |
| 256 (p2->flags() & MemPointerRecord::tag_masks); | |
| 257 if (df == 0) { | |
| 258 assert(p1->seq() > 0, "not sequenced"); | |
| 259 assert(p2->seq() > 0, "not sequenced"); | |
| 260 if (p1->seq() > p2->seq()) { | |
| 261 copy_pointer(p2, p1); | |
| 262 } | |
| 263 } else if (df < 0) { | |
| 264 if (!staging_itr.insert(p1)) { | |
| 265 return false; | |
| 266 } | |
| 267 } else { | |
| 268 if (!staging_itr.insert_after(p1)) { | |
| 269 return false; | |
| 270 } | |
| 271 } | |
| 272 } else if (p1->addr() < p2->addr()) { | |
| 273 if (!staging_itr.insert(p1)) { | |
| 274 return false; | |
| 275 } | |
| 276 } else { | |
| 277 if (!staging_itr.insert_after(p1)) { | |
| 278 return false; | |
| 279 } | |
| 280 } | |
| 281 p1 = (MemPointerRecord*)itr.next(); | |
| 282 } | |
| 283 NOT_PRODUCT(void check_staging_data();) | |
| 284 return true; | |
| 285 } | |
| 286 | |
| 287 | |
| 288 | |
| 289 // promote data to next generation | |
| 290 void MemSnapshot::promote() { | |
| 291 assert(_alloc_ptrs != NULL && _staging_area != NULL && _vm_ptrs != NULL, | |
| 292 "Just check"); | |
| 293 MutexLockerEx lock(_lock, true); | |
| 294 StagingWalker walker(_staging_area); | |
| 295 MemPointerIterator malloc_itr(_alloc_ptrs); | |
| 296 VMMemPointerIterator vm_itr(_vm_ptrs); | |
| 297 MemPointer* cur = walker.current(); | |
| 298 while (cur != NULL) { | |
| 299 if (walker.is_vm_record()) { | |
| 300 VMMemRegion* cur_vm = (VMMemRegion*)cur; | |
| 301 VMMemRegion* p = (VMMemRegion*)vm_itr.locate(cur_vm->addr()); | |
| 302 cur_vm = (VMMemRegion*)cur; | |
| 303 if (p != NULL && (p->contains(cur_vm) || p->base() == cur_vm->base())) { | |
| 304 assert(p->is_reserve_record() || | |
| 305 p->is_commit_record(), "wrong vm record type"); | |
| 306 // resize existing reserved range | |
| 307 if (cur_vm->is_reserve_record() && p->base() == cur_vm->base()) { | |
| 308 assert(cur_vm->size() >= p->committed_size(), "incorrect resizing"); | |
| 309 p->set_reserved_size(cur_vm->size()); | |
| 310 } else if (cur_vm->is_commit_record()) { | |
| 311 p->commit(cur_vm->committed_size()); | |
| 312 } else if (cur_vm->is_uncommit_record()) { | |
| 313 p->uncommit(cur_vm->committed_size()); | |
| 314 if (!p->is_reserve_record() && p->committed_size() == 0) { | |
| 315 vm_itr.remove(); | |
| 316 } | |
| 317 } else if (cur_vm->is_type_tagging_record()) { | |
| 318 p->tag(cur_vm->flags()); | |
| 319 } else if (cur_vm->is_release_record()) { | |
| 320 if (cur_vm->base() == p->base() && cur_vm->size() == p->size()) { | |
| 321 // release the whole range | |
| 322 vm_itr.remove(); | |
| 323 } else { | |
| 324 // partial release | |
| 325 p->partial_release(cur_vm->base(), cur_vm->size()); | |
| 326 } | |
| 327 } else { | |
| 328 // we do see multiple reserver on the same vm range | |
| 329 assert((cur_vm->is_commit_record() || cur_vm->is_reserve_record()) && | |
| 330 cur_vm->base() == p->base() && cur_vm->size() == p->size(), "bad record"); | |
| 331 p->tag(cur_vm->flags()); | |
| 332 } | |
| 333 } else { | |
| 334 if(cur_vm->is_reserve_record()) { | |
| 335 if (p == NULL || p->base() > cur_vm->base()) { | |
| 336 vm_itr.insert(cur_vm); | |
| 337 } else { | |
| 338 vm_itr.insert_after(cur_vm); | |
| 339 } | |
| 340 } else { | |
| 341 // In theory, we should assert without conditions. However, in case of native | |
| 342 // thread stack, NMT explicitly releases the thread stack in Thread's destructor, | |
| 343 // due to platform dependent behaviors. On some platforms, we see uncommit/release | |
| 344 // native thread stack, but some, we don't. | |
|
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345 assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record(), |
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346 err_msg("Should not reach here, pointer addr = [" INTPTR_FORMAT "], flags = [%x]", |
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347 cur_vm->addr(), cur_vm->flags())); |
| 6197 | 348 } |
| 349 } | |
| 350 } else { | |
| 351 MemPointerRecord* cur_p = (MemPointerRecord*)cur; | |
| 352 MemPointerRecord* p = (MemPointerRecord*)malloc_itr.locate(cur->addr()); | |
| 353 if (p != NULL && cur_p->addr() == p->addr()) { | |
| 354 assert(p->is_allocation_record() || p->is_arena_size_record(), "untracked"); | |
| 355 if (cur_p->is_allocation_record() || cur_p->is_arena_size_record()) { | |
| 356 copy_pointer(p, cur_p); | |
| 357 } else { // deallocation record | |
| 358 assert(cur_p->is_deallocation_record(), "wrong record type"); | |
| 359 | |
| 360 // we are removing an arena record, we also need to remove its 'size' | |
| 361 // record behind it | |
| 362 if (p->is_arena_record()) { | |
| 363 MemPointerRecord* next_p = (MemPointerRecord*)malloc_itr.peek_next(); | |
| 364 if (next_p->is_arena_size_record()) { | |
| 365 assert(next_p->is_size_record_of_arena(p), "arena records dont match"); | |
| 366 malloc_itr.remove(); | |
| 367 } | |
| 368 } | |
| 369 malloc_itr.remove(); | |
| 370 } | |
| 371 } else { | |
| 372 if (cur_p->is_arena_size_record()) { | |
| 373 MemPointerRecord* prev_p = (MemPointerRecord*)malloc_itr.peek_prev(); | |
| 374 if (prev_p != NULL && | |
| 375 (!prev_p->is_arena_record() || !cur_p->is_size_record_of_arena(prev_p))) { | |
| 376 // arena already deallocated | |
| 377 cur_p = NULL; | |
| 378 } | |
| 379 } | |
| 380 if (cur_p != NULL) { | |
| 381 if (cur_p->is_allocation_record() || cur_p->is_arena_size_record()) { | |
| 382 if (p != NULL && cur_p->addr() > p->addr()) { | |
| 383 malloc_itr.insert_after(cur); | |
| 384 } else { | |
| 385 malloc_itr.insert(cur); | |
| 386 } | |
| 387 } | |
| 388 #ifndef PRODUCT | |
| 389 else if (!has_allocation_record(cur_p->addr())){ | |
| 390 // NMT can not track some startup memory, which allocated before NMT | |
| 391 // is enabled | |
| 392 _untracked_count ++; | |
| 393 } | |
| 394 #endif | |
| 395 } | |
| 396 } | |
| 397 } | |
| 398 | |
| 399 cur = walker.next(); | |
| 400 } | |
| 401 NOT_PRODUCT(check_malloc_pointers();) | |
| 402 _staging_area->shrink(); | |
| 403 _staging_area->clear(); | |
| 404 } | |
| 405 | |
| 406 | |
|
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7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
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407 #ifndef PRODUCT |
| 6197 | 408 void MemSnapshot::print_snapshot_stats(outputStream* st) { |
| 409 st->print_cr("Snapshot:"); | |
| 410 st->print_cr("\tMalloced: %d/%d [%5.2f%%] %dKB", _alloc_ptrs->length(), _alloc_ptrs->capacity(), | |
| 411 (100.0 * (float)_alloc_ptrs->length()) / (float)_alloc_ptrs->capacity(), _alloc_ptrs->instance_size()/K); | |
| 412 | |
| 413 st->print_cr("\tVM: %d/%d [%5.2f%%] %dKB", _vm_ptrs->length(), _vm_ptrs->capacity(), | |
| 414 (100.0 * (float)_vm_ptrs->length()) / (float)_vm_ptrs->capacity(), _vm_ptrs->instance_size()/K); | |
| 415 | |
| 416 st->print_cr("\tStaging: %d/%d [%5.2f%%] %dKB", _staging_area->length(), _staging_area->capacity(), | |
| 417 (100.0 * (float)_staging_area->length()) / (float)_staging_area->capacity(), _staging_area->instance_size()/K); | |
| 418 | |
| 419 st->print_cr("\tUntracked allocation: %d", _untracked_count); | |
| 420 } | |
| 421 | |
| 422 void MemSnapshot::check_malloc_pointers() { | |
| 423 MemPointerArrayIteratorImpl mItr(_alloc_ptrs); | |
| 424 MemPointerRecord* p = (MemPointerRecord*)mItr.current(); | |
| 425 MemPointerRecord* prev = NULL; | |
| 426 while (p != NULL) { | |
| 427 if (prev != NULL) { | |
| 428 assert(p->addr() >= prev->addr(), "sorting order"); | |
| 429 } | |
| 430 prev = p; | |
| 431 p = (MemPointerRecord*)mItr.next(); | |
| 432 } | |
| 433 } | |
| 434 | |
|
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435 bool MemSnapshot::has_allocation_record(address addr) { |
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7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
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diff
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436 MemPointerArrayIteratorImpl itr(_staging_area); |
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diff
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437 MemPointerRecord* cur = (MemPointerRecord*)itr.current(); |
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438 while (cur != NULL) { |
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439 if (cur->addr() == addr && cur->is_allocation_record()) { |
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440 return true; |
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7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
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441 } |
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442 cur = (MemPointerRecord*)itr.next(); |
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zgu
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443 } |
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7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
zgu
parents:
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diff
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444 return false; |
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7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
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parents:
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445 } |
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446 #endif // PRODUCT |
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7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
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447 |
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e5bf1c79ed5b
7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
zgu
parents:
6599
diff
changeset
|
448 #ifdef ASSERT |
| 6197 | 449 void MemSnapshot::check_staging_data() { |
| 450 MemPointerArrayIteratorImpl itr(_staging_area); | |
| 451 MemPointerRecord* cur = (MemPointerRecord*)itr.current(); | |
| 452 MemPointerRecord* next = (MemPointerRecord*)itr.next(); | |
| 453 while (next != NULL) { | |
| 454 assert((next->addr() > cur->addr()) || | |
| 455 ((next->flags() & MemPointerRecord::tag_masks) > | |
| 456 (cur->flags() & MemPointerRecord::tag_masks)), | |
| 457 "sorting order"); | |
| 458 cur = next; | |
| 459 next = (MemPointerRecord*)itr.next(); | |
| 460 } | |
| 461 } | |
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6607
e5bf1c79ed5b
7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
zgu
parents:
6599
diff
changeset
|
462 #endif // ASSERT |
| 6197 | 463 |