Mercurial > hg > truffle
annotate src/share/vm/runtime/fprofiler.cpp @ 12355:cefad50507d8
Merge with hs25-b53
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Fri, 11 Oct 2013 10:38:03 +0200 |
| parents | 491de79915eb |
| children | 78bbf4d43a14 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/classLoader.hpp" | |
| 27 #include "code/vtableStubs.hpp" | |
| 28 #include "gc_interface/collectedHeap.inline.hpp" | |
| 29 #include "interpreter/interpreter.hpp" | |
| 30 #include "memory/allocation.inline.hpp" | |
| 31 #include "memory/universe.inline.hpp" | |
| 32 #include "oops/oop.inline.hpp" | |
| 33 #include "oops/oop.inline2.hpp" | |
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34 #include "oops/symbol.hpp" |
| 1972 | 35 #include "runtime/deoptimization.hpp" |
| 36 #include "runtime/fprofiler.hpp" | |
| 37 #include "runtime/mutexLocker.hpp" | |
| 38 #include "runtime/stubCodeGenerator.hpp" | |
| 39 #include "runtime/stubRoutines.hpp" | |
| 40 #include "runtime/task.hpp" | |
| 41 #include "runtime/vframe.hpp" | |
| 42 #include "utilities/macros.hpp" | |
| 0 | 43 |
| 44 // Static fields of FlatProfiler | |
| 45 int FlatProfiler::received_gc_ticks = 0; | |
| 46 int FlatProfiler::vm_operation_ticks = 0; | |
| 47 int FlatProfiler::threads_lock_ticks = 0; | |
| 48 int FlatProfiler::class_loader_ticks = 0; | |
| 49 int FlatProfiler::extra_ticks = 0; | |
| 50 int FlatProfiler::blocked_ticks = 0; | |
| 51 int FlatProfiler::deopt_ticks = 0; | |
| 52 int FlatProfiler::unknown_ticks = 0; | |
| 53 int FlatProfiler::interpreter_ticks = 0; | |
| 54 int FlatProfiler::compiler_ticks = 0; | |
| 55 int FlatProfiler::received_ticks = 0; | |
| 56 int FlatProfiler::delivered_ticks = 0; | |
| 57 int* FlatProfiler::bytecode_ticks = NULL; | |
| 58 int* FlatProfiler::bytecode_ticks_stub = NULL; | |
| 59 int FlatProfiler::all_int_ticks = 0; | |
| 60 int FlatProfiler::all_comp_ticks = 0; | |
| 61 int FlatProfiler::all_ticks = 0; | |
| 62 bool FlatProfiler::full_profile_flag = false; | |
| 63 ThreadProfiler* FlatProfiler::thread_profiler = NULL; | |
| 64 ThreadProfiler* FlatProfiler::vm_thread_profiler = NULL; | |
| 65 FlatProfilerTask* FlatProfiler::task = NULL; | |
| 66 elapsedTimer FlatProfiler::timer; | |
| 67 int FlatProfiler::interval_ticks_previous = 0; | |
| 68 IntervalData* FlatProfiler::interval_data = NULL; | |
| 69 | |
| 70 ThreadProfiler::ThreadProfiler() { | |
| 71 // Space for the ProfilerNodes | |
| 72 const int area_size = 1 * ProfilerNodeSize * 1024; | |
| 6197 | 73 area_bottom = AllocateHeap(area_size, mtInternal); |
| 0 | 74 area_top = area_bottom; |
| 75 area_limit = area_bottom + area_size; | |
| 76 | |
| 77 // ProfilerNode pointer table | |
| 6197 | 78 table = NEW_C_HEAP_ARRAY(ProfilerNode*, table_size, mtInternal); |
| 0 | 79 initialize(); |
| 80 engaged = false; | |
| 81 } | |
| 82 | |
| 83 ThreadProfiler::~ThreadProfiler() { | |
| 84 FreeHeap(area_bottom); | |
| 85 area_bottom = NULL; | |
| 86 area_top = NULL; | |
| 87 area_limit = NULL; | |
| 88 FreeHeap(table); | |
| 89 table = NULL; | |
| 90 } | |
| 91 | |
| 92 // Statics for ThreadProfiler | |
| 93 int ThreadProfiler::table_size = 1024; | |
| 94 | |
| 95 int ThreadProfiler::entry(int value) { | |
| 96 value = (value > 0) ? value : -value; | |
| 97 return value % table_size; | |
| 98 } | |
| 99 | |
| 100 ThreadProfilerMark::ThreadProfilerMark(ThreadProfilerMark::Region r) { | |
| 101 _r = r; | |
| 102 _pp = NULL; | |
| 103 assert(((r > ThreadProfilerMark::noRegion) && (r < ThreadProfilerMark::maxRegion)), "ThreadProfilerMark::Region out of bounds"); | |
| 104 Thread* tp = Thread::current(); | |
| 105 if (tp != NULL && tp->is_Java_thread()) { | |
| 106 JavaThread* jtp = (JavaThread*) tp; | |
| 107 ThreadProfiler* pp = jtp->get_thread_profiler(); | |
| 108 _pp = pp; | |
| 109 if (pp != NULL) { | |
| 110 pp->region_flag[r] = true; | |
| 111 } | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 ThreadProfilerMark::~ThreadProfilerMark() { | |
| 116 if (_pp != NULL) { | |
| 117 _pp->region_flag[_r] = false; | |
| 118 } | |
| 119 _pp = NULL; | |
| 120 } | |
| 121 | |
| 122 // Random other statics | |
| 123 static const int col1 = 2; // position of output column 1 | |
| 124 static const int col2 = 11; // position of output column 2 | |
| 125 static const int col3 = 25; // position of output column 3 | |
| 126 static const int col4 = 55; // position of output column 4 | |
| 127 | |
| 128 | |
| 129 // Used for detailed profiling of nmethods. | |
| 130 class PCRecorder : AllStatic { | |
| 131 private: | |
| 132 static int* counters; | |
| 133 static address base; | |
| 134 enum { | |
| 135 bucket_size = 16 | |
| 136 }; | |
| 137 static int index_for(address pc) { return (pc - base)/bucket_size; } | |
| 138 static address pc_for(int index) { return base + (index * bucket_size); } | |
| 139 static int size() { | |
| 140 return ((int)CodeCache::max_capacity())/bucket_size * BytesPerWord; | |
| 141 } | |
| 142 public: | |
| 143 static address bucket_start_for(address pc) { | |
| 144 if (counters == NULL) return NULL; | |
| 145 return pc_for(index_for(pc)); | |
| 146 } | |
| 147 static int bucket_count_for(address pc) { return counters[index_for(pc)]; } | |
| 148 static void init(); | |
| 149 static void record(address pc); | |
| 150 static void print(); | |
| 151 static void print_blobs(CodeBlob* cb); | |
| 152 }; | |
| 153 | |
| 154 int* PCRecorder::counters = NULL; | |
| 155 address PCRecorder::base = NULL; | |
| 156 | |
| 157 void PCRecorder::init() { | |
| 158 MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 159 int s = size(); | |
| 6197 | 160 counters = NEW_C_HEAP_ARRAY(int, s, mtInternal); |
| 0 | 161 for (int index = 0; index < s; index++) { |
| 162 counters[index] = 0; | |
| 163 } | |
| 164 base = CodeCache::first_address(); | |
| 165 } | |
| 166 | |
| 167 void PCRecorder::record(address pc) { | |
| 168 if (counters == NULL) return; | |
| 169 assert(CodeCache::contains(pc), "must be in CodeCache"); | |
| 170 counters[index_for(pc)]++; | |
| 171 } | |
| 172 | |
| 173 | |
| 174 address FlatProfiler::bucket_start_for(address pc) { | |
| 175 return PCRecorder::bucket_start_for(pc); | |
| 176 } | |
| 177 | |
| 178 int FlatProfiler::bucket_count_for(address pc) { | |
| 179 return PCRecorder::bucket_count_for(pc); | |
| 180 } | |
| 181 | |
| 182 void PCRecorder::print() { | |
| 183 if (counters == NULL) return; | |
| 184 | |
| 185 tty->cr(); | |
| 186 tty->print_cr("Printing compiled methods with PC buckets having more than %d ticks", ProfilerPCTickThreshold); | |
| 187 tty->print_cr("==================================================================="); | |
| 188 tty->cr(); | |
| 189 | |
| 190 GrowableArray<CodeBlob*>* candidates = new GrowableArray<CodeBlob*>(20); | |
| 191 | |
| 192 | |
| 193 int s; | |
| 194 { | |
| 195 MutexLockerEx lm(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 196 s = size(); | |
| 197 } | |
| 198 | |
| 199 for (int index = 0; index < s; index++) { | |
| 200 int count = counters[index]; | |
| 201 if (count > ProfilerPCTickThreshold) { | |
| 202 address pc = pc_for(index); | |
| 203 CodeBlob* cb = CodeCache::find_blob_unsafe(pc); | |
| 204 if (cb != NULL && candidates->find(cb) < 0) { | |
| 205 candidates->push(cb); | |
| 206 } | |
| 207 } | |
| 208 } | |
| 209 for (int i = 0; i < candidates->length(); i++) { | |
| 210 print_blobs(candidates->at(i)); | |
| 211 } | |
| 212 } | |
| 213 | |
| 214 void PCRecorder::print_blobs(CodeBlob* cb) { | |
| 215 if (cb != NULL) { | |
| 216 cb->print(); | |
| 217 if (cb->is_nmethod()) { | |
| 218 ((nmethod*)cb)->print_code(); | |
| 219 } | |
| 220 tty->cr(); | |
| 221 } else { | |
| 222 tty->print_cr("stub code"); | |
| 223 } | |
| 224 } | |
| 225 | |
| 226 class tick_counter { // holds tick info for one node | |
| 227 public: | |
| 228 int ticks_in_code; | |
| 229 int ticks_in_native; | |
| 230 | |
| 231 tick_counter() { ticks_in_code = ticks_in_native = 0; } | |
| 232 tick_counter(int code, int native) { ticks_in_code = code; ticks_in_native = native; } | |
| 233 | |
| 234 int total() const { | |
| 235 return (ticks_in_code + ticks_in_native); | |
| 236 } | |
| 237 | |
| 238 void add(tick_counter* a) { | |
| 239 ticks_in_code += a->ticks_in_code; | |
| 240 ticks_in_native += a->ticks_in_native; | |
| 241 } | |
| 242 | |
| 243 void update(TickPosition where) { | |
| 244 switch(where) { | |
| 245 case tp_code: ticks_in_code++; break; | |
| 246 case tp_native: ticks_in_native++; break; | |
| 247 } | |
| 248 } | |
| 249 | |
| 250 void print_code(outputStream* st, int total_ticks) { | |
| 251 st->print("%5.1f%% %5d ", total() * 100.0 / total_ticks, ticks_in_code); | |
| 252 } | |
| 253 | |
| 254 void print_native(outputStream* st) { | |
| 255 st->print(" + %5d ", ticks_in_native); | |
| 256 } | |
| 257 }; | |
| 258 | |
| 259 class ProfilerNode { | |
| 260 private: | |
| 261 ProfilerNode* _next; | |
| 262 public: | |
| 263 tick_counter ticks; | |
| 264 | |
| 265 public: | |
| 266 | |
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267 void* operator new(size_t size, ThreadProfiler* tp) throw(); |
| 0 | 268 void operator delete(void* p); |
| 269 | |
| 270 ProfilerNode() { | |
| 271 _next = NULL; | |
| 272 } | |
| 273 | |
| 274 virtual ~ProfilerNode() { | |
| 275 if (_next) | |
| 276 delete _next; | |
| 277 } | |
| 278 | |
| 279 void set_next(ProfilerNode* n) { _next = n; } | |
| 280 ProfilerNode* next() { return _next; } | |
| 281 | |
| 282 void update(TickPosition where) { ticks.update(where);} | |
| 283 int total_ticks() { return ticks.total(); } | |
| 284 | |
| 285 virtual bool is_interpreted() const { return false; } | |
| 286 virtual bool is_compiled() const { return false; } | |
| 287 virtual bool is_stub() const { return false; } | |
| 288 virtual bool is_runtime_stub() const{ return false; } | |
| 289 virtual void oops_do(OopClosure* f) = 0; | |
| 290 | |
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291 virtual bool interpreted_match(Method* m) const { return false; } |
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292 virtual bool compiled_match(Method* m ) const { return false; } |
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293 virtual bool stub_match(Method* m, const char* name) const { return false; } |
| 0 | 294 virtual bool adapter_match() const { return false; } |
| 295 virtual bool runtimeStub_match(const CodeBlob* stub, const char* name) const { return false; } | |
| 296 virtual bool unknown_compiled_match(const CodeBlob* cb) const { return false; } | |
| 297 | |
| 298 static void print_title(outputStream* st) { | |
| 299 st->print(" + native"); | |
| 300 st->fill_to(col3); | |
| 301 st->print("Method"); | |
| 302 st->fill_to(col4); | |
| 303 st->cr(); | |
| 304 } | |
| 305 | |
| 306 static void print_total(outputStream* st, tick_counter* t, int total, const char* msg) { | |
| 307 t->print_code(st, total); | |
| 308 st->fill_to(col2); | |
| 309 t->print_native(st); | |
| 310 st->fill_to(col3); | |
| 311 st->print(msg); | |
| 312 st->cr(); | |
| 313 } | |
| 314 | |
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315 virtual Method* method() = 0; |
| 0 | 316 |
| 317 virtual void print_method_on(outputStream* st) { | |
| 318 int limit; | |
| 319 int i; | |
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320 Method* m = method(); |
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321 Symbol* k = m->klass_name(); |
| 0 | 322 // Print the class name with dots instead of slashes |
| 323 limit = k->utf8_length(); | |
| 324 for (i = 0 ; i < limit ; i += 1) { | |
| 325 char c = (char) k->byte_at(i); | |
| 326 if (c == '/') { | |
| 327 c = '.'; | |
| 328 } | |
| 329 st->print("%c", c); | |
| 330 } | |
| 331 if (limit > 0) { | |
| 332 st->print("."); | |
| 333 } | |
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334 Symbol* n = m->name(); |
| 0 | 335 limit = n->utf8_length(); |
| 336 for (i = 0 ; i < limit ; i += 1) { | |
| 337 char c = (char) n->byte_at(i); | |
| 338 st->print("%c", c); | |
| 339 } | |
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340 if (Verbose || WizardMode) { |
| 0 | 341 // Disambiguate overloaded methods |
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342 Symbol* sig = m->signature(); |
| 0 | 343 sig->print_symbol_on(st); |
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344 } else if (MethodHandles::is_signature_polymorphic(m->intrinsic_id())) |
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345 // compare with Method::print_short_name |
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346 MethodHandles::print_as_basic_type_signature_on(st, m->signature(), true); |
| 0 | 347 } |
| 348 | |
| 349 virtual void print(outputStream* st, int total_ticks) { | |
| 350 ticks.print_code(st, total_ticks); | |
| 351 st->fill_to(col2); | |
| 352 ticks.print_native(st); | |
| 353 st->fill_to(col3); | |
| 354 print_method_on(st); | |
| 355 st->cr(); | |
| 356 } | |
| 357 | |
| 358 // for hashing into the table | |
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359 static int hash(Method* method) { |
| 0 | 360 // The point here is to try to make something fairly unique |
| 361 // out of the fields we can read without grabbing any locks | |
| 362 // since the method may be locked when we need the hash. | |
| 363 return ( | |
| 364 method->code_size() ^ | |
| 365 method->max_stack() ^ | |
| 366 method->max_locals() ^ | |
| 367 method->size_of_parameters()); | |
| 368 } | |
| 369 | |
| 370 // for sorting | |
| 371 static int compare(ProfilerNode** a, ProfilerNode** b) { | |
| 372 return (*b)->total_ticks() - (*a)->total_ticks(); | |
| 373 } | |
| 374 }; | |
| 375 | |
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376 void* ProfilerNode::operator new(size_t size, ThreadProfiler* tp) throw() { |
| 0 | 377 void* result = (void*) tp->area_top; |
| 378 tp->area_top += size; | |
| 379 | |
| 380 if (tp->area_top > tp->area_limit) { | |
| 381 fatal("flat profiler buffer overflow"); | |
| 382 } | |
| 383 return result; | |
| 384 } | |
| 385 | |
| 386 void ProfilerNode::operator delete(void* p){ | |
| 387 } | |
| 388 | |
| 389 class interpretedNode : public ProfilerNode { | |
| 390 private: | |
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391 Method* _method; |
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392 oop _class_loader; // needed to keep metadata for the method alive |
| 0 | 393 public: |
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394 interpretedNode(Method* method, TickPosition where) : ProfilerNode() { |
| 0 | 395 _method = method; |
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396 _class_loader = method->method_holder()->class_loader(); |
| 0 | 397 update(where); |
| 398 } | |
| 399 | |
| 400 bool is_interpreted() const { return true; } | |
| 401 | |
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402 bool interpreted_match(Method* m) const { |
| 0 | 403 return _method == m; |
| 404 } | |
| 405 | |
| 406 void oops_do(OopClosure* f) { | |
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407 f->do_oop(&_class_loader); |
| 0 | 408 } |
| 409 | |
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410 Method* method() { return _method; } |
| 0 | 411 |
| 412 static void print_title(outputStream* st) { | |
| 413 st->fill_to(col1); | |
| 414 st->print("%11s", "Interpreted"); | |
| 415 ProfilerNode::print_title(st); | |
| 416 } | |
| 417 | |
| 418 void print(outputStream* st, int total_ticks) { | |
| 419 ProfilerNode::print(st, total_ticks); | |
| 420 } | |
| 421 | |
| 422 void print_method_on(outputStream* st) { | |
| 423 ProfilerNode::print_method_on(st); | |
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424 MethodCounters* mcs = method()->method_counters(); |
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425 if (Verbose && mcs != NULL) mcs->invocation_counter()->print_short(); |
| 0 | 426 } |
| 427 }; | |
| 428 | |
| 429 class compiledNode : public ProfilerNode { | |
| 430 private: | |
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431 Method* _method; |
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432 oop _class_loader; // needed to keep metadata for the method alive |
| 0 | 433 public: |
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434 compiledNode(Method* method, TickPosition where) : ProfilerNode() { |
| 0 | 435 _method = method; |
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436 _class_loader = method->method_holder()->class_loader(); |
| 0 | 437 update(where); |
| 438 } | |
| 439 bool is_compiled() const { return true; } | |
| 440 | |
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441 bool compiled_match(Method* m) const { |
| 0 | 442 return _method == m; |
| 443 } | |
| 444 | |
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445 Method* method() { return _method; } |
| 0 | 446 |
| 447 void oops_do(OopClosure* f) { | |
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448 f->do_oop(&_class_loader); |
| 0 | 449 } |
| 450 | |
| 451 static void print_title(outputStream* st) { | |
| 452 st->fill_to(col1); | |
| 453 st->print("%11s", "Compiled"); | |
| 454 ProfilerNode::print_title(st); | |
| 455 } | |
| 456 | |
| 457 void print(outputStream* st, int total_ticks) { | |
| 458 ProfilerNode::print(st, total_ticks); | |
| 459 } | |
| 460 | |
| 461 void print_method_on(outputStream* st) { | |
| 462 ProfilerNode::print_method_on(st); | |
| 463 } | |
| 464 }; | |
| 465 | |
| 466 class stubNode : public ProfilerNode { | |
| 467 private: | |
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468 Method* _method; |
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469 oop _class_loader; // needed to keep metadata for the method alive |
| 0 | 470 const char* _symbol; // The name of the nearest VM symbol (for +ProfileVM). Points to a unique string |
| 471 public: | |
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472 stubNode(Method* method, const char* name, TickPosition where) : ProfilerNode() { |
| 0 | 473 _method = method; |
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474 _class_loader = method->method_holder()->class_loader(); |
| 0 | 475 _symbol = name; |
| 476 update(where); | |
| 477 } | |
| 478 | |
| 479 bool is_stub() const { return true; } | |
| 480 | |
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481 void oops_do(OopClosure* f) { |
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482 f->do_oop(&_class_loader); |
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483 } |
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484 |
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485 bool stub_match(Method* m, const char* name) const { |
| 0 | 486 return (_method == m) && (_symbol == name); |
| 487 } | |
| 488 | |
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489 Method* method() { return _method; } |
| 0 | 490 |
| 491 static void print_title(outputStream* st) { | |
| 492 st->fill_to(col1); | |
| 493 st->print("%11s", "Stub"); | |
| 494 ProfilerNode::print_title(st); | |
| 495 } | |
| 496 | |
| 497 void print(outputStream* st, int total_ticks) { | |
| 498 ProfilerNode::print(st, total_ticks); | |
| 499 } | |
| 500 | |
| 501 void print_method_on(outputStream* st) { | |
| 502 ProfilerNode::print_method_on(st); | |
| 503 print_symbol_on(st); | |
| 504 } | |
| 505 | |
| 506 void print_symbol_on(outputStream* st) { | |
| 507 if(_symbol) { | |
| 508 st->print(" (%s)", _symbol); | |
| 509 } | |
| 510 } | |
| 511 }; | |
| 512 | |
| 513 class adapterNode : public ProfilerNode { | |
| 514 public: | |
| 515 adapterNode(TickPosition where) : ProfilerNode() { | |
| 516 update(where); | |
| 517 } | |
| 518 bool is_compiled() const { return true; } | |
| 519 | |
| 520 bool adapter_match() const { return true; } | |
| 521 | |
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522 Method* method() { return NULL; } |
| 0 | 523 |
| 524 void oops_do(OopClosure* f) { | |
| 525 ; | |
| 526 } | |
| 527 | |
| 528 void print(outputStream* st, int total_ticks) { | |
| 529 ProfilerNode::print(st, total_ticks); | |
| 530 } | |
| 531 | |
| 532 void print_method_on(outputStream* st) { | |
| 533 st->print("%s", "adapters"); | |
| 534 } | |
| 535 }; | |
| 536 | |
| 537 class runtimeStubNode : public ProfilerNode { | |
| 538 private: | |
| 539 const CodeBlob* _stub; | |
| 540 const char* _symbol; // The name of the nearest VM symbol when ProfileVM is on. Points to a unique string. | |
| 541 public: | |
| 542 runtimeStubNode(const CodeBlob* stub, const char* name, TickPosition where) : ProfilerNode(), _stub(stub), _symbol(name) { | |
| 543 assert(stub->is_runtime_stub(), "wrong code blob"); | |
| 544 update(where); | |
| 545 } | |
| 546 | |
| 547 bool is_runtime_stub() const { return true; } | |
| 548 | |
| 549 bool runtimeStub_match(const CodeBlob* stub, const char* name) const { | |
| 550 assert(stub->is_runtime_stub(), "wrong code blob"); | |
| 551 return ((RuntimeStub*)_stub)->entry_point() == ((RuntimeStub*)stub)->entry_point() && | |
| 552 (_symbol == name); | |
| 553 } | |
| 554 | |
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555 Method* method() { return NULL; } |
| 0 | 556 |
| 557 static void print_title(outputStream* st) { | |
| 558 st->fill_to(col1); | |
| 559 st->print("%11s", "Runtime stub"); | |
| 560 ProfilerNode::print_title(st); | |
| 561 } | |
| 562 | |
| 563 void oops_do(OopClosure* f) { | |
| 564 ; | |
| 565 } | |
| 566 | |
| 567 void print(outputStream* st, int total_ticks) { | |
| 568 ProfilerNode::print(st, total_ticks); | |
| 569 } | |
| 570 | |
| 571 void print_method_on(outputStream* st) { | |
| 572 st->print("%s", ((RuntimeStub*)_stub)->name()); | |
| 573 print_symbol_on(st); | |
| 574 } | |
| 575 | |
| 576 void print_symbol_on(outputStream* st) { | |
| 577 if(_symbol) { | |
| 578 st->print(" (%s)", _symbol); | |
| 579 } | |
| 580 } | |
| 581 }; | |
| 582 | |
| 583 | |
| 584 class unknown_compiledNode : public ProfilerNode { | |
| 585 const char *_name; | |
| 586 public: | |
| 587 unknown_compiledNode(const CodeBlob* cb, TickPosition where) : ProfilerNode() { | |
| 588 if ( cb->is_buffer_blob() ) | |
| 589 _name = ((BufferBlob*)cb)->name(); | |
| 590 else | |
| 591 _name = ((SingletonBlob*)cb)->name(); | |
| 592 update(where); | |
| 593 } | |
| 594 bool is_compiled() const { return true; } | |
| 595 | |
| 596 bool unknown_compiled_match(const CodeBlob* cb) const { | |
| 597 if ( cb->is_buffer_blob() ) | |
| 598 return !strcmp(((BufferBlob*)cb)->name(), _name); | |
| 599 else | |
| 600 return !strcmp(((SingletonBlob*)cb)->name(), _name); | |
| 601 } | |
| 602 | |
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603 Method* method() { return NULL; } |
| 0 | 604 |
| 605 void oops_do(OopClosure* f) { | |
| 606 ; | |
| 607 } | |
| 608 | |
| 609 void print(outputStream* st, int total_ticks) { | |
| 610 ProfilerNode::print(st, total_ticks); | |
| 611 } | |
| 612 | |
| 613 void print_method_on(outputStream* st) { | |
| 614 st->print("%s", _name); | |
| 615 } | |
| 616 }; | |
| 617 | |
| 618 class vmNode : public ProfilerNode { | |
| 619 private: | |
| 620 const char* _name; // "optional" name obtained by os means such as dll lookup | |
| 621 public: | |
| 622 vmNode(const TickPosition where) : ProfilerNode() { | |
| 623 _name = NULL; | |
| 624 update(where); | |
| 625 } | |
| 626 | |
| 627 vmNode(const char* name, const TickPosition where) : ProfilerNode() { | |
| 628 _name = name; | |
| 629 update(where); | |
| 630 } | |
| 631 | |
| 632 const char *name() const { return _name; } | |
| 633 bool is_compiled() const { return true; } | |
| 634 | |
| 635 bool vm_match(const char* name) const { return strcmp(name, _name) == 0; } | |
| 636 | |
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637 Method* method() { return NULL; } |
| 0 | 638 |
| 639 static int hash(const char* name){ | |
| 640 // Compute a simple hash | |
| 641 const char* cp = name; | |
| 642 int h = 0; | |
| 643 | |
| 644 if(name != NULL){ | |
| 645 while(*cp != '\0'){ | |
| 646 h = (h << 1) ^ *cp; | |
| 647 cp++; | |
| 648 } | |
| 649 } | |
| 650 return h; | |
| 651 } | |
| 652 | |
| 653 void oops_do(OopClosure* f) { | |
| 654 ; | |
| 655 } | |
| 656 | |
| 657 void print(outputStream* st, int total_ticks) { | |
| 658 ProfilerNode::print(st, total_ticks); | |
| 659 } | |
| 660 | |
| 661 void print_method_on(outputStream* st) { | |
| 662 if(_name==NULL){ | |
| 663 st->print("%s", "unknown code"); | |
| 664 } | |
| 665 else { | |
| 666 st->print("%s", _name); | |
| 667 } | |
| 668 } | |
| 669 }; | |
| 670 | |
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671 void ThreadProfiler::interpreted_update(Method* method, TickPosition where) { |
| 0 | 672 int index = entry(ProfilerNode::hash(method)); |
| 673 if (!table[index]) { | |
| 674 table[index] = new (this) interpretedNode(method, where); | |
| 675 } else { | |
| 676 ProfilerNode* prev = table[index]; | |
| 677 for(ProfilerNode* node = prev; node; node = node->next()) { | |
| 678 if (node->interpreted_match(method)) { | |
| 679 node->update(where); | |
| 680 return; | |
| 681 } | |
| 682 prev = node; | |
| 683 } | |
| 684 prev->set_next(new (this) interpretedNode(method, where)); | |
| 685 } | |
| 686 } | |
| 687 | |
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688 void ThreadProfiler::compiled_update(Method* method, TickPosition where) { |
| 0 | 689 int index = entry(ProfilerNode::hash(method)); |
| 690 if (!table[index]) { | |
| 691 table[index] = new (this) compiledNode(method, where); | |
| 692 } else { | |
| 693 ProfilerNode* prev = table[index]; | |
| 694 for(ProfilerNode* node = prev; node; node = node->next()) { | |
| 695 if (node->compiled_match(method)) { | |
| 696 node->update(where); | |
| 697 return; | |
| 698 } | |
| 699 prev = node; | |
| 700 } | |
| 701 prev->set_next(new (this) compiledNode(method, where)); | |
| 702 } | |
| 703 } | |
| 704 | |
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705 void ThreadProfiler::stub_update(Method* method, const char* name, TickPosition where) { |
| 0 | 706 int index = entry(ProfilerNode::hash(method)); |
| 707 if (!table[index]) { | |
| 708 table[index] = new (this) stubNode(method, name, where); | |
| 709 } else { | |
| 710 ProfilerNode* prev = table[index]; | |
| 711 for(ProfilerNode* node = prev; node; node = node->next()) { | |
| 712 if (node->stub_match(method, name)) { | |
| 713 node->update(where); | |
| 714 return; | |
| 715 } | |
| 716 prev = node; | |
| 717 } | |
| 718 prev->set_next(new (this) stubNode(method, name, where)); | |
| 719 } | |
| 720 } | |
| 721 | |
| 722 void ThreadProfiler::adapter_update(TickPosition where) { | |
| 723 int index = 0; | |
| 724 if (!table[index]) { | |
| 725 table[index] = new (this) adapterNode(where); | |
| 726 } else { | |
| 727 ProfilerNode* prev = table[index]; | |
| 728 for(ProfilerNode* node = prev; node; node = node->next()) { | |
| 729 if (node->adapter_match()) { | |
| 730 node->update(where); | |
| 731 return; | |
| 732 } | |
| 733 prev = node; | |
| 734 } | |
| 735 prev->set_next(new (this) adapterNode(where)); | |
| 736 } | |
| 737 } | |
| 738 | |
| 739 void ThreadProfiler::runtime_stub_update(const CodeBlob* stub, const char* name, TickPosition where) { | |
| 740 int index = 0; | |
| 741 if (!table[index]) { | |
| 742 table[index] = new (this) runtimeStubNode(stub, name, where); | |
| 743 } else { | |
| 744 ProfilerNode* prev = table[index]; | |
| 745 for(ProfilerNode* node = prev; node; node = node->next()) { | |
| 746 if (node->runtimeStub_match(stub, name)) { | |
| 747 node->update(where); | |
| 748 return; | |
| 749 } | |
| 750 prev = node; | |
| 751 } | |
| 752 prev->set_next(new (this) runtimeStubNode(stub, name, where)); | |
| 753 } | |
| 754 } | |
| 755 | |
| 756 | |
| 757 void ThreadProfiler::unknown_compiled_update(const CodeBlob* cb, TickPosition where) { | |
| 758 int index = 0; | |
| 759 if (!table[index]) { | |
| 760 table[index] = new (this) unknown_compiledNode(cb, where); | |
| 761 } else { | |
| 762 ProfilerNode* prev = table[index]; | |
| 763 for(ProfilerNode* node = prev; node; node = node->next()) { | |
| 764 if (node->unknown_compiled_match(cb)) { | |
| 765 node->update(where); | |
| 766 return; | |
| 767 } | |
| 768 prev = node; | |
| 769 } | |
| 770 prev->set_next(new (this) unknown_compiledNode(cb, where)); | |
| 771 } | |
| 772 } | |
| 773 | |
| 774 void ThreadProfiler::vm_update(TickPosition where) { | |
| 775 vm_update(NULL, where); | |
| 776 } | |
| 777 | |
| 778 void ThreadProfiler::vm_update(const char* name, TickPosition where) { | |
| 779 int index = entry(vmNode::hash(name)); | |
| 780 assert(index >= 0, "Must be positive"); | |
| 781 // Note that we call strdup below since the symbol may be resource allocated | |
| 782 if (!table[index]) { | |
| 783 table[index] = new (this) vmNode(os::strdup(name), where); | |
| 784 } else { | |
| 785 ProfilerNode* prev = table[index]; | |
| 786 for(ProfilerNode* node = prev; node; node = node->next()) { | |
| 787 if (((vmNode *)node)->vm_match(name)) { | |
| 788 node->update(where); | |
| 789 return; | |
| 790 } | |
| 791 prev = node; | |
| 792 } | |
| 793 prev->set_next(new (this) vmNode(os::strdup(name), where)); | |
| 794 } | |
| 795 } | |
| 796 | |
| 797 | |
| 798 class FlatProfilerTask : public PeriodicTask { | |
| 799 public: | |
| 800 FlatProfilerTask(int interval_time) : PeriodicTask(interval_time) {} | |
| 801 void task(); | |
| 802 }; | |
| 803 | |
| 804 void FlatProfiler::record_vm_operation() { | |
| 805 if (Universe::heap()->is_gc_active()) { | |
| 806 FlatProfiler::received_gc_ticks += 1; | |
| 807 return; | |
| 808 } | |
| 809 | |
| 810 if (DeoptimizationMarker::is_active()) { | |
| 811 FlatProfiler::deopt_ticks += 1; | |
| 812 return; | |
| 813 } | |
| 814 | |
| 815 FlatProfiler::vm_operation_ticks += 1; | |
| 816 } | |
| 817 | |
| 818 void FlatProfiler::record_vm_tick() { | |
| 819 // Profile the VM Thread itself if needed | |
| 820 // This is done without getting the Threads_lock and we can go deep | |
| 821 // inside Safepoint, etc. | |
| 822 if( ProfileVM ) { | |
| 823 ResourceMark rm; | |
| 824 ExtendedPC epc; | |
| 825 const char *name = NULL; | |
| 826 char buf[256]; | |
| 827 buf[0] = '\0'; | |
| 828 | |
| 829 vm_thread_profiler->inc_thread_ticks(); | |
| 830 | |
| 831 // Get a snapshot of a current VMThread pc (and leave it running!) | |
| 832 // The call may fail if, for instance the VM thread is interrupted while | |
| 833 // holding the Interrupt_lock or for other reasons. | |
| 834 epc = os::get_thread_pc(VMThread::vm_thread()); | |
| 835 if(epc.pc() != NULL) { | |
| 836 if (os::dll_address_to_function_name(epc.pc(), buf, sizeof(buf), NULL)) { | |
| 837 name = buf; | |
| 838 } | |
| 839 } | |
| 840 if (name != NULL) { | |
| 841 vm_thread_profiler->vm_update(name, tp_native); | |
| 842 } | |
| 843 } | |
| 844 } | |
| 845 | |
| 846 void FlatProfiler::record_thread_ticks() { | |
| 847 | |
| 848 int maxthreads, suspendedthreadcount; | |
| 849 JavaThread** threadsList; | |
| 850 bool interval_expired = false; | |
| 851 | |
| 852 if (ProfileIntervals && | |
| 853 (FlatProfiler::received_ticks >= interval_ticks_previous + ProfileIntervalsTicks)) { | |
| 854 interval_expired = true; | |
| 855 interval_ticks_previous = FlatProfiler::received_ticks; | |
| 856 } | |
| 857 | |
| 858 // Try not to wait for the Threads_lock | |
| 859 if (Threads_lock->try_lock()) { | |
| 860 { // Threads_lock scope | |
| 861 maxthreads = Threads::number_of_threads(); | |
| 6197 | 862 threadsList = NEW_C_HEAP_ARRAY(JavaThread *, maxthreads, mtInternal); |
| 0 | 863 suspendedthreadcount = 0; |
| 864 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) { | |
| 865 if (tp->is_Compiler_thread()) { | |
| 866 // Only record ticks for active compiler threads | |
| 867 CompilerThread* cthread = (CompilerThread*)tp; | |
| 868 if (cthread->task() != NULL) { | |
| 869 // The compiler is active. If we need to access any of the fields | |
| 870 // of the compiler task we should suspend the CompilerThread first. | |
| 871 FlatProfiler::compiler_ticks += 1; | |
| 872 continue; | |
| 873 } | |
| 874 } | |
| 875 | |
| 876 // First externally suspend all threads by marking each for | |
| 877 // external suspension - so it will stop at its next transition | |
| 878 // Then do a safepoint | |
| 879 ThreadProfiler* pp = tp->get_thread_profiler(); | |
| 880 if (pp != NULL && pp->engaged) { | |
| 881 MutexLockerEx ml(tp->SR_lock(), Mutex::_no_safepoint_check_flag); | |
| 882 if (!tp->is_external_suspend() && !tp->is_exiting()) { | |
| 883 tp->set_external_suspend(); | |
| 884 threadsList[suspendedthreadcount++] = tp; | |
| 885 } | |
| 886 } | |
| 887 } | |
| 888 Threads_lock->unlock(); | |
| 889 } | |
| 890 // Suspend each thread. This call should just return | |
| 891 // for any threads that have already self-suspended | |
| 892 // Net result should be one safepoint | |
| 893 for (int j = 0; j < suspendedthreadcount; j++) { | |
| 894 JavaThread *tp = threadsList[j]; | |
| 895 if (tp) { | |
| 896 tp->java_suspend(); | |
| 897 } | |
| 898 } | |
| 899 | |
| 900 // We are responsible for resuming any thread on this list | |
| 901 for (int i = 0; i < suspendedthreadcount; i++) { | |
| 902 JavaThread *tp = threadsList[i]; | |
| 903 if (tp) { | |
| 904 ThreadProfiler* pp = tp->get_thread_profiler(); | |
| 905 if (pp != NULL && pp->engaged) { | |
| 906 HandleMark hm; | |
| 907 FlatProfiler::delivered_ticks += 1; | |
| 908 if (interval_expired) { | |
| 909 FlatProfiler::interval_record_thread(pp); | |
| 910 } | |
| 911 // This is the place where we check to see if a user thread is | |
| 912 // blocked waiting for compilation. | |
| 913 if (tp->blocked_on_compilation()) { | |
| 914 pp->compiler_ticks += 1; | |
| 915 pp->interval_data_ref()->inc_compiling(); | |
| 916 } else { | |
| 917 pp->record_tick(tp); | |
| 918 } | |
| 919 } | |
| 920 MutexLocker ml(Threads_lock); | |
| 921 tp->java_resume(); | |
| 922 } | |
| 923 } | |
| 924 if (interval_expired) { | |
| 925 FlatProfiler::interval_print(); | |
| 926 FlatProfiler::interval_reset(); | |
| 927 } | |
| 12148 | 928 |
| 929 FREE_C_HEAP_ARRAY(JavaThread *, threadsList, mtInternal); | |
| 0 | 930 } else { |
| 931 // Couldn't get the threads lock, just record that rather than blocking | |
| 932 FlatProfiler::threads_lock_ticks += 1; | |
| 933 } | |
| 934 | |
| 935 } | |
| 936 | |
| 937 void FlatProfilerTask::task() { | |
| 938 FlatProfiler::received_ticks += 1; | |
| 939 | |
| 940 if (ProfileVM) { | |
| 941 FlatProfiler::record_vm_tick(); | |
| 942 } | |
| 943 | |
| 944 VM_Operation* op = VMThread::vm_operation(); | |
| 945 if (op != NULL) { | |
| 946 FlatProfiler::record_vm_operation(); | |
| 947 if (SafepointSynchronize::is_at_safepoint()) { | |
| 948 return; | |
| 949 } | |
| 950 } | |
| 951 FlatProfiler::record_thread_ticks(); | |
| 952 } | |
| 953 | |
|
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954 void ThreadProfiler::record_interpreted_tick(JavaThread* thread, frame fr, TickPosition where, int* ticks) { |
| 0 | 955 FlatProfiler::all_int_ticks++; |
| 956 if (!FlatProfiler::full_profile()) { | |
| 957 return; | |
| 958 } | |
| 959 | |
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960 if (!fr.is_interpreted_frame_valid(thread)) { |
| 0 | 961 // tick came at a bad time |
| 962 interpreter_ticks += 1; | |
| 963 FlatProfiler::interpreter_ticks += 1; | |
| 964 return; | |
| 965 } | |
| 966 | |
|
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967 // The frame has been fully validated so we can trust the method and bci |
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968 |
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969 Method* method = *fr.interpreter_frame_method_addr(); |
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970 |
| 0 | 971 interpreted_update(method, where); |
| 972 | |
| 973 // update byte code table | |
| 974 InterpreterCodelet* desc = Interpreter::codelet_containing(fr.pc()); | |
| 975 if (desc != NULL && desc->bytecode() >= 0) { | |
| 976 ticks[desc->bytecode()]++; | |
| 977 } | |
| 978 } | |
| 979 | |
| 980 void ThreadProfiler::record_compiled_tick(JavaThread* thread, frame fr, TickPosition where) { | |
| 981 const char *name = NULL; | |
| 982 TickPosition localwhere = where; | |
| 983 | |
| 984 FlatProfiler::all_comp_ticks++; | |
| 985 if (!FlatProfiler::full_profile()) return; | |
| 986 | |
| 987 CodeBlob* cb = fr.cb(); | |
| 988 | |
| 989 // For runtime stubs, record as native rather than as compiled | |
| 990 if (cb->is_runtime_stub()) { | |
| 991 RegisterMap map(thread, false); | |
| 992 fr = fr.sender(&map); | |
| 993 cb = fr.cb(); | |
| 994 localwhere = tp_native; | |
| 995 } | |
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996 Method* method = (cb->is_nmethod()) ? ((nmethod *)cb)->method() : |
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997 (Method*)NULL; |
| 0 | 998 |
| 999 if (method == NULL) { | |
| 1000 if (cb->is_runtime_stub()) | |
| 1001 runtime_stub_update(cb, name, localwhere); | |
| 1002 else | |
| 1003 unknown_compiled_update(cb, localwhere); | |
| 1004 } | |
| 1005 else { | |
| 1006 if (method->is_native()) { | |
| 1007 stub_update(method, name, localwhere); | |
| 1008 } else { | |
| 1009 compiled_update(method, localwhere); | |
| 1010 } | |
| 1011 } | |
| 1012 } | |
| 1013 | |
| 1014 extern "C" void find(int x); | |
| 1015 | |
| 1016 | |
| 1017 void ThreadProfiler::record_tick_for_running_frame(JavaThread* thread, frame fr) { | |
| 605 | 1018 // The tick happened in real code -> non VM code |
| 0 | 1019 if (fr.is_interpreted_frame()) { |
| 1020 interval_data_ref()->inc_interpreted(); | |
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1021 record_interpreted_tick(thread, fr, tp_code, FlatProfiler::bytecode_ticks); |
| 0 | 1022 return; |
| 1023 } | |
| 1024 | |
| 1025 if (CodeCache::contains(fr.pc())) { | |
| 1026 interval_data_ref()->inc_compiled(); | |
| 1027 PCRecorder::record(fr.pc()); | |
| 1028 record_compiled_tick(thread, fr, tp_code); | |
| 1029 return; | |
| 1030 } | |
| 1031 | |
| 1032 if (VtableStubs::stub_containing(fr.pc()) != NULL) { | |
| 1033 unknown_ticks_array[ut_vtable_stubs] += 1; | |
| 1034 return; | |
| 1035 } | |
| 1036 | |
| 1037 frame caller = fr.profile_find_Java_sender_frame(thread); | |
| 1038 | |
| 1039 if (caller.sp() != NULL && caller.pc() != NULL) { | |
| 1040 record_tick_for_calling_frame(thread, caller); | |
| 1041 return; | |
| 1042 } | |
| 1043 | |
| 1044 unknown_ticks_array[ut_running_frame] += 1; | |
| 1045 FlatProfiler::unknown_ticks += 1; | |
| 1046 } | |
| 1047 | |
| 1048 void ThreadProfiler::record_tick_for_calling_frame(JavaThread* thread, frame fr) { | |
| 605 | 1049 // The tick happened in VM code |
| 0 | 1050 interval_data_ref()->inc_native(); |
| 1051 if (fr.is_interpreted_frame()) { | |
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1052 record_interpreted_tick(thread, fr, tp_native, FlatProfiler::bytecode_ticks_stub); |
| 0 | 1053 return; |
| 1054 } | |
| 1055 if (CodeCache::contains(fr.pc())) { | |
| 1056 record_compiled_tick(thread, fr, tp_native); | |
| 1057 return; | |
| 1058 } | |
| 1059 | |
| 1060 frame caller = fr.profile_find_Java_sender_frame(thread); | |
| 1061 | |
| 1062 if (caller.sp() != NULL && caller.pc() != NULL) { | |
| 1063 record_tick_for_calling_frame(thread, caller); | |
| 1064 return; | |
| 1065 } | |
| 1066 | |
| 1067 unknown_ticks_array[ut_calling_frame] += 1; | |
| 1068 FlatProfiler::unknown_ticks += 1; | |
| 1069 } | |
| 1070 | |
| 1071 void ThreadProfiler::record_tick(JavaThread* thread) { | |
| 1072 FlatProfiler::all_ticks++; | |
| 1073 thread_ticks += 1; | |
| 1074 | |
| 1075 // Here's another way to track global state changes. | |
| 1076 // When the class loader starts it marks the ThreadProfiler to tell it it is in the class loader | |
| 1077 // and we check that here. | |
| 1078 // This is more direct, and more than one thread can be in the class loader at a time, | |
| 1079 // but it does mean the class loader has to know about the profiler. | |
| 1080 if (region_flag[ThreadProfilerMark::classLoaderRegion]) { | |
| 1081 class_loader_ticks += 1; | |
| 1082 FlatProfiler::class_loader_ticks += 1; | |
| 1083 return; | |
| 1084 } else if (region_flag[ThreadProfilerMark::extraRegion]) { | |
| 1085 extra_ticks += 1; | |
| 1086 FlatProfiler::extra_ticks += 1; | |
| 1087 return; | |
| 1088 } | |
| 1089 // Note that the WatcherThread can now stop for safepoints | |
| 1090 uint32_t debug_bits = 0; | |
| 1091 if (!thread->wait_for_ext_suspend_completion(SuspendRetryCount, | |
| 1092 SuspendRetryDelay, &debug_bits)) { | |
| 1093 unknown_ticks_array[ut_unknown_thread_state] += 1; | |
| 1094 FlatProfiler::unknown_ticks += 1; | |
| 1095 return; | |
| 1096 } | |
| 1097 | |
| 1098 frame fr; | |
| 1099 | |
| 1100 switch (thread->thread_state()) { | |
| 1101 case _thread_in_native: | |
| 1102 case _thread_in_native_trans: | |
| 1103 case _thread_in_vm: | |
| 1104 case _thread_in_vm_trans: | |
| 1105 if (thread->profile_last_Java_frame(&fr)) { | |
| 1106 if (fr.is_runtime_frame()) { | |
| 1107 RegisterMap map(thread, false); | |
| 1108 fr = fr.sender(&map); | |
| 1109 } | |
| 1110 record_tick_for_calling_frame(thread, fr); | |
| 1111 } else { | |
| 1112 unknown_ticks_array[ut_no_last_Java_frame] += 1; | |
| 1113 FlatProfiler::unknown_ticks += 1; | |
| 1114 } | |
| 1115 break; | |
| 1116 // handle_special_runtime_exit_condition self-suspends threads in Java | |
| 1117 case _thread_in_Java: | |
| 1118 case _thread_in_Java_trans: | |
| 1119 if (thread->profile_last_Java_frame(&fr)) { | |
| 1120 if (fr.is_safepoint_blob_frame()) { | |
| 1121 RegisterMap map(thread, false); | |
| 1122 fr = fr.sender(&map); | |
| 1123 } | |
| 1124 record_tick_for_running_frame(thread, fr); | |
| 1125 } else { | |
| 1126 unknown_ticks_array[ut_no_last_Java_frame] += 1; | |
| 1127 FlatProfiler::unknown_ticks += 1; | |
| 1128 } | |
| 1129 break; | |
| 1130 case _thread_blocked: | |
| 1131 case _thread_blocked_trans: | |
| 1132 if (thread->osthread() && thread->osthread()->get_state() == RUNNABLE) { | |
| 1133 if (thread->profile_last_Java_frame(&fr)) { | |
| 1134 if (fr.is_safepoint_blob_frame()) { | |
| 1135 RegisterMap map(thread, false); | |
| 1136 fr = fr.sender(&map); | |
| 1137 record_tick_for_running_frame(thread, fr); | |
| 1138 } else { | |
| 1139 record_tick_for_calling_frame(thread, fr); | |
| 1140 } | |
| 1141 } else { | |
| 1142 unknown_ticks_array[ut_no_last_Java_frame] += 1; | |
| 1143 FlatProfiler::unknown_ticks += 1; | |
| 1144 } | |
| 1145 } else { | |
| 1146 blocked_ticks += 1; | |
| 1147 FlatProfiler::blocked_ticks += 1; | |
| 1148 } | |
| 1149 break; | |
| 1150 case _thread_uninitialized: | |
| 1151 case _thread_new: | |
| 1152 // not used, included for completeness | |
| 1153 case _thread_new_trans: | |
| 1154 unknown_ticks_array[ut_no_last_Java_frame] += 1; | |
| 1155 FlatProfiler::unknown_ticks += 1; | |
| 1156 break; | |
| 1157 default: | |
| 1158 unknown_ticks_array[ut_unknown_thread_state] += 1; | |
| 1159 FlatProfiler::unknown_ticks += 1; | |
| 1160 break; | |
| 1161 } | |
| 1162 return; | |
| 1163 } | |
| 1164 | |
| 1165 void ThreadProfiler::engage() { | |
| 1166 engaged = true; | |
| 1167 timer.start(); | |
| 1168 } | |
| 1169 | |
| 1170 void ThreadProfiler::disengage() { | |
| 1171 engaged = false; | |
| 1172 timer.stop(); | |
| 1173 } | |
| 1174 | |
| 1175 void ThreadProfiler::initialize() { | |
| 1176 for (int index = 0; index < table_size; index++) { | |
| 1177 table[index] = NULL; | |
| 1178 } | |
| 1179 thread_ticks = 0; | |
| 1180 blocked_ticks = 0; | |
| 1181 compiler_ticks = 0; | |
| 1182 interpreter_ticks = 0; | |
| 1183 for (int ut = 0; ut < ut_end; ut += 1) { | |
| 1184 unknown_ticks_array[ut] = 0; | |
| 1185 } | |
| 1186 region_flag[ThreadProfilerMark::classLoaderRegion] = false; | |
| 1187 class_loader_ticks = 0; | |
| 1188 region_flag[ThreadProfilerMark::extraRegion] = false; | |
| 1189 extra_ticks = 0; | |
| 1190 timer.start(); | |
| 1191 interval_data_ref()->reset(); | |
| 1192 } | |
| 1193 | |
| 1194 void ThreadProfiler::reset() { | |
| 1195 timer.stop(); | |
| 1196 if (table != NULL) { | |
| 1197 for (int index = 0; index < table_size; index++) { | |
| 1198 ProfilerNode* n = table[index]; | |
| 1199 if (n != NULL) { | |
| 1200 delete n; | |
| 1201 } | |
| 1202 } | |
| 1203 } | |
| 1204 initialize(); | |
| 1205 } | |
| 1206 | |
| 1207 void FlatProfiler::allocate_table() { | |
| 1208 { // Bytecode table | |
| 6197 | 1209 bytecode_ticks = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal); |
| 1210 bytecode_ticks_stub = NEW_C_HEAP_ARRAY(int, Bytecodes::number_of_codes, mtInternal); | |
| 0 | 1211 for(int index = 0; index < Bytecodes::number_of_codes; index++) { |
| 1212 bytecode_ticks[index] = 0; | |
| 1213 bytecode_ticks_stub[index] = 0; | |
| 1214 } | |
| 1215 } | |
| 1216 | |
| 1217 if (ProfilerRecordPC) PCRecorder::init(); | |
| 1218 | |
| 6197 | 1219 interval_data = NEW_C_HEAP_ARRAY(IntervalData, interval_print_size, mtInternal); |
| 0 | 1220 FlatProfiler::interval_reset(); |
| 1221 } | |
| 1222 | |
| 1223 void FlatProfiler::engage(JavaThread* mainThread, bool fullProfile) { | |
| 1224 full_profile_flag = fullProfile; | |
| 1225 if (bytecode_ticks == NULL) { | |
| 1226 allocate_table(); | |
| 1227 } | |
| 1228 if(ProfileVM && (vm_thread_profiler == NULL)){ | |
| 1229 vm_thread_profiler = new ThreadProfiler(); | |
| 1230 } | |
| 1231 if (task == NULL) { | |
| 1232 task = new FlatProfilerTask(WatcherThread::delay_interval); | |
| 1233 task->enroll(); | |
| 1234 } | |
| 1235 timer.start(); | |
| 1236 if (mainThread != NULL) { | |
| 1237 // When mainThread was created, it might not have a ThreadProfiler | |
| 1238 ThreadProfiler* pp = mainThread->get_thread_profiler(); | |
| 1239 if (pp == NULL) { | |
| 1240 mainThread->set_thread_profiler(new ThreadProfiler()); | |
| 1241 } else { | |
| 1242 pp->reset(); | |
| 1243 } | |
| 1244 mainThread->get_thread_profiler()->engage(); | |
| 1245 } | |
| 1246 // This is where we would assign thread_profiler | |
| 1247 // if we wanted only one thread_profiler for all threads. | |
| 1248 thread_profiler = NULL; | |
| 1249 } | |
| 1250 | |
| 1251 void FlatProfiler::disengage() { | |
| 1252 if (!task) { | |
| 1253 return; | |
| 1254 } | |
| 1255 timer.stop(); | |
| 1256 task->disenroll(); | |
| 1257 delete task; | |
| 1258 task = NULL; | |
| 1259 if (thread_profiler != NULL) { | |
| 1260 thread_profiler->disengage(); | |
| 1261 } else { | |
| 1262 MutexLocker tl(Threads_lock); | |
| 1263 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) { | |
| 1264 ThreadProfiler* pp = tp->get_thread_profiler(); | |
| 1265 if (pp != NULL) { | |
| 1266 pp->disengage(); | |
| 1267 } | |
| 1268 } | |
| 1269 } | |
| 1270 } | |
| 1271 | |
| 1272 void FlatProfiler::reset() { | |
| 1273 if (task) { | |
| 1274 disengage(); | |
| 1275 } | |
| 1276 | |
| 1277 class_loader_ticks = 0; | |
| 1278 extra_ticks = 0; | |
| 1279 received_gc_ticks = 0; | |
| 1280 vm_operation_ticks = 0; | |
| 1281 compiler_ticks = 0; | |
| 1282 deopt_ticks = 0; | |
| 1283 interpreter_ticks = 0; | |
| 1284 blocked_ticks = 0; | |
| 1285 unknown_ticks = 0; | |
| 1286 received_ticks = 0; | |
| 1287 delivered_ticks = 0; | |
| 1288 timer.stop(); | |
| 1289 } | |
| 1290 | |
| 1291 bool FlatProfiler::is_active() { | |
| 1292 return task != NULL; | |
| 1293 } | |
| 1294 | |
| 1295 void FlatProfiler::print_byte_code_statistics() { | |
| 1296 GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200); | |
| 1297 | |
| 1298 tty->print_cr(" Bytecode ticks:"); | |
| 1299 for (int index = 0; index < Bytecodes::number_of_codes; index++) { | |
| 1300 if (FlatProfiler::bytecode_ticks[index] > 0 || FlatProfiler::bytecode_ticks_stub[index] > 0) { | |
| 1301 tty->print_cr(" %4d %4d = %s", | |
| 1302 FlatProfiler::bytecode_ticks[index], | |
| 1303 FlatProfiler::bytecode_ticks_stub[index], | |
| 1304 Bytecodes::name( (Bytecodes::Code) index)); | |
| 1305 } | |
| 1306 } | |
| 1307 tty->cr(); | |
| 1308 } | |
| 1309 | |
| 1310 void print_ticks(const char* title, int ticks, int total) { | |
| 1311 if (ticks > 0) { | |
| 1312 tty->print("%5.1f%% %5d", ticks * 100.0 / total, ticks); | |
| 1313 tty->fill_to(col3); | |
| 1314 tty->print("%s", title); | |
| 1315 tty->cr(); | |
| 1316 } | |
| 1317 } | |
| 1318 | |
| 1319 void ThreadProfiler::print(const char* thread_name) { | |
| 1320 ResourceMark rm; | |
| 1321 MutexLocker ppl(ProfilePrint_lock); | |
| 1322 int index = 0; // Declared outside for loops for portability | |
| 1323 | |
| 1324 if (table == NULL) { | |
| 1325 return; | |
| 1326 } | |
| 1327 | |
| 1328 if (thread_ticks <= 0) { | |
| 1329 return; | |
| 1330 } | |
| 1331 | |
| 1332 const char* title = "too soon to tell"; | |
| 1333 double secs = timer.seconds(); | |
| 1334 | |
| 1335 GrowableArray <ProfilerNode*>* array = new GrowableArray<ProfilerNode*>(200); | |
| 1336 for(index = 0; index < table_size; index++) { | |
| 1337 for(ProfilerNode* node = table[index]; node; node = node->next()) | |
| 1338 array->append(node); | |
| 1339 } | |
| 1340 | |
| 1341 array->sort(&ProfilerNode::compare); | |
| 1342 | |
| 1343 // compute total (sanity check) | |
| 1344 int active = | |
| 1345 class_loader_ticks + | |
| 1346 compiler_ticks + | |
| 1347 interpreter_ticks + | |
| 1348 unknown_ticks(); | |
| 1349 for (index = 0; index < array->length(); index++) { | |
| 1350 active += array->at(index)->ticks.total(); | |
| 1351 } | |
| 1352 int total = active + blocked_ticks; | |
| 1353 | |
| 1354 tty->cr(); | |
| 1355 tty->print_cr("Flat profile of %3.2f secs (%d total ticks): %s", secs, total, thread_name); | |
| 1356 if (total != thread_ticks) { | |
| 1357 print_ticks("Lost ticks", thread_ticks-total, thread_ticks); | |
| 1358 } | |
| 1359 tty->cr(); | |
| 1360 | |
| 1361 // print interpreted methods | |
| 1362 tick_counter interpreted_ticks; | |
| 1363 bool has_interpreted_ticks = false; | |
| 1364 int print_count = 0; | |
| 1365 for (index = 0; index < array->length(); index++) { | |
| 1366 ProfilerNode* n = array->at(index); | |
| 1367 if (n->is_interpreted()) { | |
| 1368 interpreted_ticks.add(&n->ticks); | |
| 1369 if (!has_interpreted_ticks) { | |
| 1370 interpretedNode::print_title(tty); | |
| 1371 has_interpreted_ticks = true; | |
| 1372 } | |
| 1373 if (print_count++ < ProfilerNumberOfInterpretedMethods) { | |
| 1374 n->print(tty, active); | |
| 1375 } | |
| 1376 } | |
| 1377 } | |
| 1378 if (has_interpreted_ticks) { | |
| 1379 if (print_count <= ProfilerNumberOfInterpretedMethods) { | |
| 1380 title = "Total interpreted"; | |
| 1381 } else { | |
| 1382 title = "Total interpreted (including elided)"; | |
| 1383 } | |
| 1384 interpretedNode::print_total(tty, &interpreted_ticks, active, title); | |
| 1385 tty->cr(); | |
| 1386 } | |
| 1387 | |
| 1388 // print compiled methods | |
| 1389 tick_counter compiled_ticks; | |
| 1390 bool has_compiled_ticks = false; | |
| 1391 print_count = 0; | |
| 1392 for (index = 0; index < array->length(); index++) { | |
| 1393 ProfilerNode* n = array->at(index); | |
| 1394 if (n->is_compiled()) { | |
| 1395 compiled_ticks.add(&n->ticks); | |
| 1396 if (!has_compiled_ticks) { | |
| 1397 compiledNode::print_title(tty); | |
| 1398 has_compiled_ticks = true; | |
| 1399 } | |
| 1400 if (print_count++ < ProfilerNumberOfCompiledMethods) { | |
| 1401 n->print(tty, active); | |
| 1402 } | |
| 1403 } | |
| 1404 } | |
| 1405 if (has_compiled_ticks) { | |
| 1406 if (print_count <= ProfilerNumberOfCompiledMethods) { | |
| 1407 title = "Total compiled"; | |
| 1408 } else { | |
| 1409 title = "Total compiled (including elided)"; | |
| 1410 } | |
| 1411 compiledNode::print_total(tty, &compiled_ticks, active, title); | |
| 1412 tty->cr(); | |
| 1413 } | |
| 1414 | |
| 1415 // print stub methods | |
| 1416 tick_counter stub_ticks; | |
| 1417 bool has_stub_ticks = false; | |
| 1418 print_count = 0; | |
| 1419 for (index = 0; index < array->length(); index++) { | |
| 1420 ProfilerNode* n = array->at(index); | |
| 1421 if (n->is_stub()) { | |
| 1422 stub_ticks.add(&n->ticks); | |
| 1423 if (!has_stub_ticks) { | |
| 1424 stubNode::print_title(tty); | |
| 1425 has_stub_ticks = true; | |
| 1426 } | |
| 1427 if (print_count++ < ProfilerNumberOfStubMethods) { | |
| 1428 n->print(tty, active); | |
| 1429 } | |
| 1430 } | |
| 1431 } | |
| 1432 if (has_stub_ticks) { | |
| 1433 if (print_count <= ProfilerNumberOfStubMethods) { | |
| 1434 title = "Total stub"; | |
| 1435 } else { | |
| 1436 title = "Total stub (including elided)"; | |
| 1437 } | |
| 1438 stubNode::print_total(tty, &stub_ticks, active, title); | |
| 1439 tty->cr(); | |
| 1440 } | |
| 1441 | |
| 1442 // print runtime stubs | |
| 1443 tick_counter runtime_stub_ticks; | |
| 1444 bool has_runtime_stub_ticks = false; | |
| 1445 print_count = 0; | |
| 1446 for (index = 0; index < array->length(); index++) { | |
| 1447 ProfilerNode* n = array->at(index); | |
| 1448 if (n->is_runtime_stub()) { | |
| 1449 runtime_stub_ticks.add(&n->ticks); | |
| 1450 if (!has_runtime_stub_ticks) { | |
| 1451 runtimeStubNode::print_title(tty); | |
| 1452 has_runtime_stub_ticks = true; | |
| 1453 } | |
| 1454 if (print_count++ < ProfilerNumberOfRuntimeStubNodes) { | |
| 1455 n->print(tty, active); | |
| 1456 } | |
| 1457 } | |
| 1458 } | |
| 1459 if (has_runtime_stub_ticks) { | |
| 1460 if (print_count <= ProfilerNumberOfRuntimeStubNodes) { | |
| 1461 title = "Total runtime stubs"; | |
| 1462 } else { | |
| 1463 title = "Total runtime stubs (including elided)"; | |
| 1464 } | |
| 1465 runtimeStubNode::print_total(tty, &runtime_stub_ticks, active, title); | |
| 1466 tty->cr(); | |
| 1467 } | |
| 1468 | |
| 1469 if (blocked_ticks + class_loader_ticks + interpreter_ticks + compiler_ticks + unknown_ticks() != 0) { | |
| 1470 tty->fill_to(col1); | |
| 1471 tty->print_cr("Thread-local ticks:"); | |
| 1472 print_ticks("Blocked (of total)", blocked_ticks, total); | |
| 1473 print_ticks("Class loader", class_loader_ticks, active); | |
| 1474 print_ticks("Extra", extra_ticks, active); | |
| 1475 print_ticks("Interpreter", interpreter_ticks, active); | |
| 1476 print_ticks("Compilation", compiler_ticks, active); | |
| 1477 print_ticks("Unknown: vtable stubs", unknown_ticks_array[ut_vtable_stubs], active); | |
| 1478 print_ticks("Unknown: null method", unknown_ticks_array[ut_null_method], active); | |
| 1479 print_ticks("Unknown: running frame", unknown_ticks_array[ut_running_frame], active); | |
| 1480 print_ticks("Unknown: calling frame", unknown_ticks_array[ut_calling_frame], active); | |
| 1481 print_ticks("Unknown: no pc", unknown_ticks_array[ut_no_pc], active); | |
| 1482 print_ticks("Unknown: no last frame", unknown_ticks_array[ut_no_last_Java_frame], active); | |
| 1483 print_ticks("Unknown: thread_state", unknown_ticks_array[ut_unknown_thread_state], active); | |
| 1484 tty->cr(); | |
| 1485 } | |
| 1486 | |
| 1487 if (WizardMode) { | |
| 1488 tty->print_cr("Node area used: %dKb", (area_top - area_bottom) / 1024); | |
| 1489 } | |
| 1490 reset(); | |
| 1491 } | |
| 1492 | |
| 1493 /* | |
| 1494 ThreadProfiler::print_unknown(){ | |
| 1495 if (table == NULL) { | |
| 1496 return; | |
| 1497 } | |
| 1498 | |
| 1499 if (thread_ticks <= 0) { | |
| 1500 return; | |
| 1501 } | |
| 1502 } */ | |
| 1503 | |
| 1504 void FlatProfiler::print(int unused) { | |
| 1505 ResourceMark rm; | |
| 1506 if (thread_profiler != NULL) { | |
| 1507 thread_profiler->print("All threads"); | |
| 1508 } else { | |
| 1509 MutexLocker tl(Threads_lock); | |
| 1510 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) { | |
| 1511 ThreadProfiler* pp = tp->get_thread_profiler(); | |
| 1512 if (pp != NULL) { | |
| 1513 pp->print(tp->get_thread_name()); | |
| 1514 } | |
| 1515 } | |
| 1516 } | |
| 1517 | |
| 1518 if (ProfilerPrintByteCodeStatistics) { | |
| 1519 print_byte_code_statistics(); | |
| 1520 } | |
| 1521 | |
| 1522 if (non_method_ticks() > 0) { | |
| 1523 tty->cr(); | |
| 1524 tty->print_cr("Global summary of %3.2f seconds:", timer.seconds()); | |
| 1525 print_ticks("Received ticks", received_ticks, received_ticks); | |
| 1526 print_ticks("Received GC ticks", received_gc_ticks, received_ticks); | |
| 1527 print_ticks("Compilation", compiler_ticks, received_ticks); | |
| 1528 print_ticks("Deoptimization", deopt_ticks, received_ticks); | |
| 1529 print_ticks("Other VM operations", vm_operation_ticks, received_ticks); | |
| 1530 #ifndef PRODUCT | |
| 1531 print_ticks("Blocked ticks", blocked_ticks, received_ticks); | |
| 1532 print_ticks("Threads_lock blocks", threads_lock_ticks, received_ticks); | |
| 1533 print_ticks("Delivered ticks", delivered_ticks, received_ticks); | |
| 1534 print_ticks("All ticks", all_ticks, received_ticks); | |
| 1535 #endif | |
| 1536 print_ticks("Class loader", class_loader_ticks, received_ticks); | |
| 1537 print_ticks("Extra ", extra_ticks, received_ticks); | |
| 1538 print_ticks("Interpreter", interpreter_ticks, received_ticks); | |
| 1539 print_ticks("Unknown code", unknown_ticks, received_ticks); | |
| 1540 } | |
| 1541 | |
| 1542 PCRecorder::print(); | |
| 1543 | |
| 1544 if(ProfileVM){ | |
| 1545 tty->cr(); | |
| 1546 vm_thread_profiler->print("VM Thread"); | |
| 1547 } | |
| 1548 } | |
| 1549 | |
| 1550 void IntervalData::print_header(outputStream* st) { | |
| 1551 st->print("i/c/n/g"); | |
| 1552 } | |
| 1553 | |
| 1554 void IntervalData::print_data(outputStream* st) { | |
| 1555 st->print("%d/%d/%d/%d", interpreted(), compiled(), native(), compiling()); | |
| 1556 } | |
| 1557 | |
| 1558 void FlatProfiler::interval_record_thread(ThreadProfiler* tp) { | |
| 1559 IntervalData id = tp->interval_data(); | |
| 1560 int total = id.total(); | |
| 1561 tp->interval_data_ref()->reset(); | |
| 1562 | |
| 1563 // Insertion sort the data, if it's relevant. | |
| 1564 for (int i = 0; i < interval_print_size; i += 1) { | |
| 1565 if (total > interval_data[i].total()) { | |
| 1566 for (int j = interval_print_size - 1; j > i; j -= 1) { | |
| 1567 interval_data[j] = interval_data[j-1]; | |
| 1568 } | |
| 1569 interval_data[i] = id; | |
| 1570 break; | |
| 1571 } | |
| 1572 } | |
| 1573 } | |
| 1574 | |
| 1575 void FlatProfiler::interval_print() { | |
| 1576 if ((interval_data[0].total() > 0)) { | |
| 1577 tty->stamp(); | |
| 1578 tty->print("\t"); | |
| 1579 IntervalData::print_header(tty); | |
| 1580 for (int i = 0; i < interval_print_size; i += 1) { | |
| 1581 if (interval_data[i].total() > 0) { | |
| 1582 tty->print("\t"); | |
| 1583 interval_data[i].print_data(tty); | |
| 1584 } | |
| 1585 } | |
| 1586 tty->cr(); | |
| 1587 } | |
| 1588 } | |
| 1589 | |
| 1590 void FlatProfiler::interval_reset() { | |
| 1591 for (int i = 0; i < interval_print_size; i += 1) { | |
| 1592 interval_data[i].reset(); | |
| 1593 } | |
| 1594 } | |
| 1595 | |
| 1596 void ThreadProfiler::oops_do(OopClosure* f) { | |
| 1597 if (table == NULL) return; | |
| 1598 | |
| 1599 for(int index = 0; index < table_size; index++) { | |
| 1600 for(ProfilerNode* node = table[index]; node; node = node->next()) | |
| 1601 node->oops_do(f); | |
| 1602 } | |
| 1603 } | |
| 1604 | |
| 1605 void FlatProfiler::oops_do(OopClosure* f) { | |
| 1606 if (thread_profiler != NULL) { | |
| 1607 thread_profiler->oops_do(f); | |
| 1608 } else { | |
| 1609 for (JavaThread* tp = Threads::first(); tp != NULL; tp = tp->next()) { | |
| 1610 ThreadProfiler* pp = tp->get_thread_profiler(); | |
| 1611 if (pp != NULL) { | |
| 1612 pp->oops_do(f); | |
| 1613 } | |
| 1614 } | |
| 1615 } | |
| 1616 } |