1 // Copyright 2012 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_COUNTERS_H_ 6 #define V8_COUNTERS_H_ 7 8 #include "include/v8.h" 9 #include "src/allocation.h" 10 #include "src/base/atomic-utils.h" 11 #include "src/base/platform/elapsed-timer.h" 12 #include "src/base/platform/time.h" 13 #include "src/builtins/builtins.h" 14 #include "src/globals.h" 15 #include "src/isolate.h" 16 #include "src/objects.h" 17 #include "src/runtime/runtime.h" 18 #include "src/tracing/trace-event.h" 19 #include "src/tracing/traced-value.h" 20 #include "src/tracing/tracing-category-observer.h" 21 22 namespace v8 { 23 namespace internal { 24 25 // StatsCounters is an interface for plugging into external 26 // counters for monitoring. Counters can be looked up and 27 // manipulated by name. 28 29 class StatsTable { 30 public: 31 // Register an application-defined function where 32 // counters can be looked up. 33 void SetCounterFunction(CounterLookupCallback f) { 34 lookup_function_ = f; 35 } 36 37 // Register an application-defined function to create 38 // a histogram for passing to the AddHistogramSample function 39 void SetCreateHistogramFunction(CreateHistogramCallback f) { 40 create_histogram_function_ = f; 41 } 42 43 // Register an application-defined function to add a sample 44 // to a histogram created with CreateHistogram function 45 void SetAddHistogramSampleFunction(AddHistogramSampleCallback f) { 46 add_histogram_sample_function_ = f; 47 } 48 49 bool HasCounterFunction() const { 50 return lookup_function_ != NULL; 51 } 52 53 // Lookup the location of a counter by name. If the lookup 54 // is successful, returns a non-NULL pointer for writing the 55 // value of the counter. Each thread calling this function 56 // may receive a different location to store it's counter. 57 // The return value must not be cached and re-used across 58 // threads, although a single thread is free to cache it. 59 int* FindLocation(const char* name) { 60 if (!lookup_function_) return NULL; 61 return lookup_function_(name); 62 } 63 64 // Create a histogram by name. If the create is successful, 65 // returns a non-NULL pointer for use with AddHistogramSample 66 // function. min and max define the expected minimum and maximum 67 // sample values. buckets is the maximum number of buckets 68 // that the samples will be grouped into. 69 void* CreateHistogram(const char* name, 70 int min, 71 int max, 72 size_t buckets) { 73 if (!create_histogram_function_) return NULL; 74 return create_histogram_function_(name, min, max, buckets); 75 } 76 77 // Add a sample to a histogram created with the CreateHistogram 78 // function. 79 void AddHistogramSample(void* histogram, int sample) { 80 if (!add_histogram_sample_function_) return; 81 return add_histogram_sample_function_(histogram, sample); 82 } 83 84 private: 85 StatsTable(); 86 87 CounterLookupCallback lookup_function_; 88 CreateHistogramCallback create_histogram_function_; 89 AddHistogramSampleCallback add_histogram_sample_function_; 90 91 friend class Isolate; 92 93 DISALLOW_COPY_AND_ASSIGN(StatsTable); 94 }; 95 96 // StatsCounters are dynamically created values which can be tracked in 97 // the StatsTable. They are designed to be lightweight to create and 98 // easy to use. 99 // 100 // Internally, a counter represents a value in a row of a StatsTable. 101 // The row has a 32bit value for each process/thread in the table and also 102 // a name (stored in the table metadata). Since the storage location can be 103 // thread-specific, this class cannot be shared across threads. 104 class StatsCounter { 105 public: 106 StatsCounter() { } 107 explicit StatsCounter(Isolate* isolate, const char* name) 108 : isolate_(isolate), name_(name), ptr_(NULL), lookup_done_(false) { } 109 110 // Sets the counter to a specific value. 111 void Set(int value) { 112 int* loc = GetPtr(); 113 if (loc) *loc = value; 114 } 115 116 // Increments the counter. 117 void Increment() { 118 int* loc = GetPtr(); 119 if (loc) (*loc)++; 120 } 121 122 void Increment(int value) { 123 int* loc = GetPtr(); 124 if (loc) 125 (*loc) += value; 126 } 127 128 // Decrements the counter. 129 void Decrement() { 130 int* loc = GetPtr(); 131 if (loc) (*loc)--; 132 } 133 134 void Decrement(int value) { 135 int* loc = GetPtr(); 136 if (loc) (*loc) -= value; 137 } 138 139 // Is this counter enabled? 140 // Returns false if table is full. 141 bool Enabled() { 142 return GetPtr() != NULL; 143 } 144 145 // Get the internal pointer to the counter. This is used 146 // by the code generator to emit code that manipulates a 147 // given counter without calling the runtime system. 148 int* GetInternalPointer() { 149 int* loc = GetPtr(); 150 DCHECK(loc != NULL); 151 return loc; 152 } 153 154 // Reset the cached internal pointer. 155 void Reset() { lookup_done_ = false; } 156 157 protected: 158 // Returns the cached address of this counter location. 159 int* GetPtr() { 160 if (lookup_done_) return ptr_; 161 lookup_done_ = true; 162 ptr_ = FindLocationInStatsTable(); 163 return ptr_; 164 } 165 166 private: 167 int* FindLocationInStatsTable() const; 168 169 Isolate* isolate_; 170 const char* name_; 171 int* ptr_; 172 bool lookup_done_; 173 }; 174 175 // A Histogram represents a dynamically created histogram in the StatsTable. 176 // It will be registered with the histogram system on first use. 177 class Histogram { 178 public: 179 Histogram() { } 180 Histogram(const char* name, 181 int min, 182 int max, 183 int num_buckets, 184 Isolate* isolate) 185 : name_(name), 186 min_(min), 187 max_(max), 188 num_buckets_(num_buckets), 189 histogram_(NULL), 190 lookup_done_(false), 191 isolate_(isolate) { } 192 193 // Add a single sample to this histogram. 194 void AddSample(int sample); 195 196 // Returns true if this histogram is enabled. 197 bool Enabled() { 198 return GetHistogram() != NULL; 199 } 200 201 // Reset the cached internal pointer. 202 void Reset() { 203 lookup_done_ = false; 204 } 205 206 const char* name() { return name_; } 207 208 protected: 209 // Returns the handle to the histogram. 210 void* GetHistogram() { 211 if (!lookup_done_) { 212 lookup_done_ = true; 213 histogram_ = CreateHistogram(); 214 } 215 return histogram_; 216 } 217 218 Isolate* isolate() const { return isolate_; } 219 220 private: 221 void* CreateHistogram() const; 222 223 const char* name_; 224 int min_; 225 int max_; 226 int num_buckets_; 227 void* histogram_; 228 bool lookup_done_; 229 Isolate* isolate_; 230 }; 231 232 // A HistogramTimer allows distributions of results to be created. 233 class HistogramTimer : public Histogram { 234 public: 235 enum Resolution { 236 MILLISECOND, 237 MICROSECOND 238 }; 239 240 HistogramTimer() {} 241 HistogramTimer(const char* name, int min, int max, Resolution resolution, 242 int num_buckets, Isolate* isolate) 243 : Histogram(name, min, max, num_buckets, isolate), 244 resolution_(resolution) {} 245 246 // Start the timer. 247 void Start(); 248 249 // Stop the timer and record the results. 250 void Stop(); 251 252 // Returns true if the timer is running. 253 bool Running() { 254 return Enabled() && timer_.IsStarted(); 255 } 256 257 // TODO(bmeurer): Remove this when HistogramTimerScope is fixed. 258 #ifdef DEBUG 259 base::ElapsedTimer* timer() { return &timer_; } 260 #endif 261 262 private: 263 base::ElapsedTimer timer_; 264 Resolution resolution_; 265 }; 266 267 // Helper class for scoping a HistogramTimer. 268 // TODO(bmeurer): The ifdeffery is an ugly hack around the fact that the 269 // Parser is currently reentrant (when it throws an error, we call back 270 // into JavaScript and all bets are off), but ElapsedTimer is not 271 // reentry-safe. Fix this properly and remove |allow_nesting|. 272 class HistogramTimerScope BASE_EMBEDDED { 273 public: 274 explicit HistogramTimerScope(HistogramTimer* timer, 275 bool allow_nesting = false) 276 #ifdef DEBUG 277 : timer_(timer), 278 skipped_timer_start_(false) { 279 if (timer_->timer()->IsStarted() && allow_nesting) { 280 skipped_timer_start_ = true; 281 } else { 282 timer_->Start(); 283 } 284 } 285 #else 286 : timer_(timer) { 287 timer_->Start(); 288 } 289 #endif 290 ~HistogramTimerScope() { 291 #ifdef DEBUG 292 if (!skipped_timer_start_) { 293 timer_->Stop(); 294 } 295 #else 296 timer_->Stop(); 297 #endif 298 } 299 300 private: 301 HistogramTimer* timer_; 302 #ifdef DEBUG 303 bool skipped_timer_start_; 304 #endif 305 }; 306 307 308 // A histogram timer that can aggregate events within a larger scope. 309 // 310 // Intended use of this timer is to have an outer (aggregating) and an inner 311 // (to be aggregated) scope, where the inner scope measure the time of events, 312 // and all those inner scope measurements will be summed up by the outer scope. 313 // An example use might be to aggregate the time spent in lazy compilation 314 // while running a script. 315 // 316 // Helpers: 317 // - AggregatingHistogramTimerScope, the "outer" scope within which 318 // times will be summed up. 319 // - AggregatedHistogramTimerScope, the "inner" scope which defines the 320 // events to be timed. 321 class AggregatableHistogramTimer : public Histogram { 322 public: 323 AggregatableHistogramTimer() {} 324 AggregatableHistogramTimer(const char* name, int min, int max, 325 int num_buckets, Isolate* isolate) 326 : Histogram(name, min, max, num_buckets, isolate) {} 327 328 // Start/stop the "outer" scope. 329 void Start() { time_ = base::TimeDelta(); } 330 void Stop() { AddSample(static_cast<int>(time_.InMicroseconds())); } 331 332 // Add a time value ("inner" scope). 333 void Add(base::TimeDelta other) { time_ += other; } 334 335 private: 336 base::TimeDelta time_; 337 }; 338 339 // A helper class for use with AggregatableHistogramTimer. This is the 340 // // outer-most timer scope used with an AggregatableHistogramTimer. It will 341 // // aggregate the information from the inner AggregatedHistogramTimerScope. 342 class AggregatingHistogramTimerScope { 343 public: 344 explicit AggregatingHistogramTimerScope(AggregatableHistogramTimer* histogram) 345 : histogram_(histogram) { 346 histogram_->Start(); 347 } 348 ~AggregatingHistogramTimerScope() { histogram_->Stop(); } 349 350 private: 351 AggregatableHistogramTimer* histogram_; 352 }; 353 354 // A helper class for use with AggregatableHistogramTimer, the "inner" scope 355 // // which defines the events to be timed. 356 class AggregatedHistogramTimerScope { 357 public: 358 explicit AggregatedHistogramTimerScope(AggregatableHistogramTimer* histogram) 359 : histogram_(histogram) { 360 timer_.Start(); 361 } 362 ~AggregatedHistogramTimerScope() { histogram_->Add(timer_.Elapsed()); } 363 364 private: 365 base::ElapsedTimer timer_; 366 AggregatableHistogramTimer* histogram_; 367 }; 368 369 370 // AggretatedMemoryHistogram collects (time, value) sample pairs and turns 371 // them into time-uniform samples for the backing historgram, such that the 372 // backing histogram receives one sample every T ms, where the T is controlled 373 // by the FLAG_histogram_interval. 374 // 375 // More formally: let F be a real-valued function that maps time to sample 376 // values. We define F as a linear interpolation between adjacent samples. For 377 // each time interval [x; x + T) the backing histogram gets one sample value 378 // that is the average of F(t) in the interval. 379 template <typename Histogram> 380 class AggregatedMemoryHistogram { 381 public: 382 AggregatedMemoryHistogram() 383 : is_initialized_(false), 384 start_ms_(0.0), 385 last_ms_(0.0), 386 aggregate_value_(0.0), 387 last_value_(0.0), 388 backing_histogram_(NULL) {} 389 390 explicit AggregatedMemoryHistogram(Histogram* backing_histogram) 391 : AggregatedMemoryHistogram() { 392 backing_histogram_ = backing_histogram; 393 } 394 395 // Invariants that hold before and after AddSample if 396 // is_initialized_ is true: 397 // 398 // 1) For we processed samples that came in before start_ms_ and sent the 399 // corresponding aggregated samples to backing histogram. 400 // 2) (last_ms_, last_value_) is the last received sample. 401 // 3) last_ms_ < start_ms_ + FLAG_histogram_interval. 402 // 4) aggregate_value_ is the average of the function that is constructed by 403 // linearly interpolating samples received between start_ms_ and last_ms_. 404 void AddSample(double current_ms, double current_value); 405 406 private: 407 double Aggregate(double current_ms, double current_value); 408 bool is_initialized_; 409 double start_ms_; 410 double last_ms_; 411 double aggregate_value_; 412 double last_value_; 413 Histogram* backing_histogram_; 414 }; 415 416 417 template <typename Histogram> 418 void AggregatedMemoryHistogram<Histogram>::AddSample(double current_ms, 419 double current_value) { 420 if (!is_initialized_) { 421 aggregate_value_ = current_value; 422 start_ms_ = current_ms; 423 last_value_ = current_value; 424 last_ms_ = current_ms; 425 is_initialized_ = true; 426 } else { 427 const double kEpsilon = 1e-6; 428 const int kMaxSamples = 1000; 429 if (current_ms < last_ms_ + kEpsilon) { 430 // Two samples have the same time, remember the last one. 431 last_value_ = current_value; 432 } else { 433 double sample_interval_ms = FLAG_histogram_interval; 434 double end_ms = start_ms_ + sample_interval_ms; 435 if (end_ms <= current_ms + kEpsilon) { 436 // Linearly interpolate between the last_ms_ and the current_ms. 437 double slope = (current_value - last_value_) / (current_ms - last_ms_); 438 int i; 439 // Send aggregated samples to the backing histogram from the start_ms 440 // to the current_ms. 441 for (i = 0; i < kMaxSamples && end_ms <= current_ms + kEpsilon; i++) { 442 double end_value = last_value_ + (end_ms - last_ms_) * slope; 443 double sample_value; 444 if (i == 0) { 445 // Take aggregate_value_ into account. 446 sample_value = Aggregate(end_ms, end_value); 447 } else { 448 // There is no aggregate_value_ for i > 0. 449 sample_value = (last_value_ + end_value) / 2; 450 } 451 backing_histogram_->AddSample(static_cast<int>(sample_value + 0.5)); 452 last_value_ = end_value; 453 last_ms_ = end_ms; 454 end_ms += sample_interval_ms; 455 } 456 if (i == kMaxSamples) { 457 // We hit the sample limit, ignore the remaining samples. 458 aggregate_value_ = current_value; 459 start_ms_ = current_ms; 460 } else { 461 aggregate_value_ = last_value_; 462 start_ms_ = last_ms_; 463 } 464 } 465 aggregate_value_ = current_ms > start_ms_ + kEpsilon 466 ? Aggregate(current_ms, current_value) 467 : aggregate_value_; 468 last_value_ = current_value; 469 last_ms_ = current_ms; 470 } 471 } 472 } 473 474 475 template <typename Histogram> 476 double AggregatedMemoryHistogram<Histogram>::Aggregate(double current_ms, 477 double current_value) { 478 double interval_ms = current_ms - start_ms_; 479 double value = (current_value + last_value_) / 2; 480 // The aggregate_value_ is the average for [start_ms_; last_ms_]. 481 // The value is the average for [last_ms_; current_ms]. 482 // Return the weighted average of the aggregate_value_ and the value. 483 return aggregate_value_ * ((last_ms_ - start_ms_) / interval_ms) + 484 value * ((current_ms - last_ms_) / interval_ms); 485 } 486 487 struct RuntimeCallCounter { 488 explicit RuntimeCallCounter(const char* name) : name(name) {} 489 V8_NOINLINE void Reset(); 490 V8_NOINLINE void Dump(v8::tracing::TracedValue* value); 491 void Add(RuntimeCallCounter* other); 492 493 const char* name; 494 int64_t count = 0; 495 base::TimeDelta time; 496 }; 497 498 // RuntimeCallTimer is used to keep track of the stack of currently active 499 // timers used for properly measuring the own time of a RuntimeCallCounter. 500 class RuntimeCallTimer { 501 public: 502 RuntimeCallCounter* counter() { return counter_; } 503 base::ElapsedTimer timer() { return timer_; } 504 RuntimeCallTimer* parent() const { return parent_.Value(); } 505 506 private: 507 friend class RuntimeCallStats; 508 509 inline void Start(RuntimeCallCounter* counter, RuntimeCallTimer* parent) { 510 counter_ = counter; 511 parent_.SetValue(parent); 512 if (FLAG_runtime_stats != 513 v8::tracing::TracingCategoryObserver::ENABLED_BY_SAMPLING) { 514 timer_.Start(); 515 } 516 } 517 518 inline RuntimeCallTimer* Stop() { 519 if (!timer_.IsStarted()) return parent(); 520 base::TimeDelta delta = timer_.Elapsed(); 521 timer_.Stop(); 522 counter_->count++; 523 counter_->time += delta; 524 if (parent()) { 525 // Adjust parent timer so that it does not include sub timer's time. 526 parent()->counter_->time -= delta; 527 } 528 return parent(); 529 } 530 531 inline void Elapsed() { 532 base::TimeDelta delta = timer_.Elapsed(); 533 counter_->time += delta; 534 if (parent()) { 535 parent()->counter_->time -= delta; 536 parent()->Elapsed(); 537 } 538 timer_.Restart(); 539 } 540 541 const char* name() { return counter_->name; } 542 543 RuntimeCallCounter* counter_ = nullptr; 544 base::AtomicValue<RuntimeCallTimer*> parent_; 545 base::ElapsedTimer timer_; 546 }; 547 548 #define FOR_EACH_API_COUNTER(V) \ 549 V(ArrayBuffer_Cast) \ 550 V(ArrayBuffer_Neuter) \ 551 V(ArrayBuffer_New) \ 552 V(Array_CloneElementAt) \ 553 V(Array_New) \ 554 V(BooleanObject_BooleanValue) \ 555 V(BooleanObject_New) \ 556 V(Context_New) \ 557 V(Context_NewRemoteContext) \ 558 V(DataView_New) \ 559 V(Date_DateTimeConfigurationChangeNotification) \ 560 V(Date_New) \ 561 V(Date_NumberValue) \ 562 V(Debug_Call) \ 563 V(Debug_GetMirror) \ 564 V(Error_New) \ 565 V(External_New) \ 566 V(Float32Array_New) \ 567 V(Float64Array_New) \ 568 V(Function_Call) \ 569 V(Function_New) \ 570 V(Function_NewInstance) \ 571 V(FunctionTemplate_GetFunction) \ 572 V(FunctionTemplate_New) \ 573 V(FunctionTemplate_NewRemoteInstance) \ 574 V(FunctionTemplate_NewWithFastHandler) \ 575 V(Int16Array_New) \ 576 V(Int32Array_New) \ 577 V(Int8Array_New) \ 578 V(JSON_Parse) \ 579 V(JSON_Stringify) \ 580 V(Map_AsArray) \ 581 V(Map_Clear) \ 582 V(Map_Delete) \ 583 V(Map_Get) \ 584 V(Map_Has) \ 585 V(Map_New) \ 586 V(Map_Set) \ 587 V(Message_GetEndColumn) \ 588 V(Message_GetLineNumber) \ 589 V(Message_GetSourceLine) \ 590 V(Message_GetStartColumn) \ 591 V(Module_Evaluate) \ 592 V(Module_Instantiate) \ 593 V(NumberObject_New) \ 594 V(NumberObject_NumberValue) \ 595 V(Object_CallAsConstructor) \ 596 V(Object_CallAsFunction) \ 597 V(Object_CreateDataProperty) \ 598 V(Object_DefineOwnProperty) \ 599 V(Object_DefineProperty) \ 600 V(Object_Delete) \ 601 V(Object_DeleteProperty) \ 602 V(Object_ForceSet) \ 603 V(Object_Get) \ 604 V(Object_GetOwnPropertyDescriptor) \ 605 V(Object_GetOwnPropertyNames) \ 606 V(Object_GetPropertyAttributes) \ 607 V(Object_GetPropertyNames) \ 608 V(Object_GetRealNamedProperty) \ 609 V(Object_GetRealNamedPropertyAttributes) \ 610 V(Object_GetRealNamedPropertyAttributesInPrototypeChain) \ 611 V(Object_GetRealNamedPropertyInPrototypeChain) \ 612 V(Object_HasOwnProperty) \ 613 V(Object_HasRealIndexedProperty) \ 614 V(Object_HasRealNamedCallbackProperty) \ 615 V(Object_HasRealNamedProperty) \ 616 V(Object_Int32Value) \ 617 V(Object_IntegerValue) \ 618 V(Object_New) \ 619 V(Object_NumberValue) \ 620 V(Object_ObjectProtoToString) \ 621 V(Object_Set) \ 622 V(Object_SetAccessor) \ 623 V(Object_SetIntegrityLevel) \ 624 V(Object_SetPrivate) \ 625 V(Object_SetPrototype) \ 626 V(ObjectTemplate_New) \ 627 V(ObjectTemplate_NewInstance) \ 628 V(Object_ToArrayIndex) \ 629 V(Object_ToDetailString) \ 630 V(Object_ToInt32) \ 631 V(Object_ToInteger) \ 632 V(Object_ToNumber) \ 633 V(Object_ToObject) \ 634 V(Object_ToString) \ 635 V(Object_ToUint32) \ 636 V(Object_Uint32Value) \ 637 V(Persistent_New) \ 638 V(Private_New) \ 639 V(Promise_Catch) \ 640 V(Promise_Chain) \ 641 V(Promise_HasRejectHandler) \ 642 V(Promise_Resolver_New) \ 643 V(Promise_Resolver_Resolve) \ 644 V(Promise_Then) \ 645 V(Proxy_New) \ 646 V(RangeError_New) \ 647 V(ReferenceError_New) \ 648 V(RegExp_New) \ 649 V(ScriptCompiler_Compile) \ 650 V(ScriptCompiler_CompileFunctionInContext) \ 651 V(ScriptCompiler_CompileUnbound) \ 652 V(Script_Run) \ 653 V(Set_Add) \ 654 V(Set_AsArray) \ 655 V(Set_Clear) \ 656 V(Set_Delete) \ 657 V(Set_Has) \ 658 V(Set_New) \ 659 V(SharedArrayBuffer_New) \ 660 V(String_Concat) \ 661 V(String_NewExternalOneByte) \ 662 V(String_NewExternalTwoByte) \ 663 V(String_NewFromOneByte) \ 664 V(String_NewFromTwoByte) \ 665 V(String_NewFromUtf8) \ 666 V(StringObject_New) \ 667 V(StringObject_StringValue) \ 668 V(String_Write) \ 669 V(String_WriteUtf8) \ 670 V(Symbol_New) \ 671 V(SymbolObject_New) \ 672 V(SymbolObject_SymbolValue) \ 673 V(SyntaxError_New) \ 674 V(TryCatch_StackTrace) \ 675 V(TypeError_New) \ 676 V(Uint16Array_New) \ 677 V(Uint32Array_New) \ 678 V(Uint8Array_New) \ 679 V(Uint8ClampedArray_New) \ 680 V(UnboundScript_GetId) \ 681 V(UnboundScript_GetLineNumber) \ 682 V(UnboundScript_GetName) \ 683 V(UnboundScript_GetSourceMappingURL) \ 684 V(UnboundScript_GetSourceURL) \ 685 V(Value_TypeOf) \ 686 V(ValueDeserializer_ReadHeader) \ 687 V(ValueDeserializer_ReadValue) \ 688 V(ValueSerializer_WriteValue) 689 690 #define FOR_EACH_MANUAL_COUNTER(V) \ 691 V(AccessorGetterCallback) \ 692 V(AccessorNameGetterCallback) \ 693 V(AccessorNameGetterCallback_ArrayLength) \ 694 V(AccessorNameGetterCallback_BoundFunctionLength) \ 695 V(AccessorNameGetterCallback_BoundFunctionName) \ 696 V(AccessorNameGetterCallback_FunctionPrototype) \ 697 V(AccessorNameGetterCallback_StringLength) \ 698 V(AccessorNameSetterCallback) \ 699 V(Compile) \ 700 V(CompileCode) \ 701 V(CompileCodeLazy) \ 702 V(CompileDeserialize) \ 703 V(CompileEval) \ 704 V(CompileFullCode) \ 705 V(CompileIgnition) \ 706 V(CompilerDispatcher) \ 707 V(CompileSerialize) \ 708 V(DeoptimizeCode) \ 709 V(FunctionCallback) \ 710 V(GC) \ 711 V(GenericNamedPropertyDefinerCallback) \ 712 V(GenericNamedPropertyDeleterCallback) \ 713 V(GenericNamedPropertyDescriptorCallback) \ 714 V(GenericNamedPropertyQueryCallback) \ 715 V(GenericNamedPropertySetterCallback) \ 716 V(IndexedPropertyDefinerCallback) \ 717 V(IndexedPropertyDeleterCallback) \ 718 V(IndexedPropertyDescriptorCallback) \ 719 V(IndexedPropertyGetterCallback) \ 720 V(IndexedPropertyQueryCallback) \ 721 V(IndexedPropertySetterCallback) \ 722 V(InvokeApiInterruptCallbacks) \ 723 V(InvokeFunctionCallback) \ 724 V(JS_Execution) \ 725 V(Map_SetPrototype) \ 726 V(Map_TransitionToAccessorProperty) \ 727 V(Map_TransitionToDataProperty) \ 728 V(Object_DeleteProperty) \ 729 V(OptimizeCode) \ 730 V(ParseArrowFunctionLiteral) \ 731 V(ParseEval) \ 732 V(ParseFunction) \ 733 V(ParseFunctionLiteral) \ 734 V(ParseProgram) \ 735 V(PreParseArrowFunctionLiteral) \ 736 V(PreParseNoVariableResolution) \ 737 V(PreParseWithVariableResolution) \ 738 V(PropertyCallback) \ 739 V(PrototypeMap_TransitionToAccessorProperty) \ 740 V(PrototypeMap_TransitionToDataProperty) \ 741 V(PrototypeObject_DeleteProperty) \ 742 V(RecompileConcurrent) \ 743 V(RecompileSynchronous) \ 744 /* Dummy counter for the unexpected stub miss. */ \ 745 V(UnexpectedStubMiss) 746 747 #define FOR_EACH_HANDLER_COUNTER(V) \ 748 V(IC_HandlerCacheHit) \ 749 V(KeyedLoadIC_LoadIndexedStringStub) \ 750 V(KeyedLoadIC_LoadIndexedInterceptorStub) \ 751 V(KeyedLoadIC_KeyedLoadSloppyArgumentsStub) \ 752 V(KeyedLoadIC_LoadElementDH) \ 753 V(KeyedLoadIC_LoadFastElementStub) \ 754 V(KeyedLoadIC_LoadDictionaryElementStub) \ 755 V(KeyedLoadIC_SlowStub) \ 756 V(KeyedStoreIC_ElementsTransitionAndStoreStub) \ 757 V(KeyedStoreIC_KeyedStoreSloppyArgumentsStub) \ 758 V(KeyedStoreIC_SlowStub) \ 759 V(KeyedStoreIC_StoreFastElementStub) \ 760 V(KeyedStoreIC_StoreElementStub) \ 761 V(LoadIC_FunctionPrototypeStub) \ 762 V(LoadIC_HandlerCacheHit_AccessCheck) \ 763 V(LoadIC_HandlerCacheHit_Exotic) \ 764 V(LoadIC_HandlerCacheHit_Interceptor) \ 765 V(LoadIC_HandlerCacheHit_JSProxy) \ 766 V(LoadIC_HandlerCacheHit_NonExistent) \ 767 V(LoadIC_HandlerCacheHit_Accessor) \ 768 V(LoadIC_HandlerCacheHit_Data) \ 769 V(LoadIC_HandlerCacheHit_Transition) \ 770 V(LoadIC_LoadApiGetterDH) \ 771 V(LoadIC_LoadApiGetterFromPrototypeDH) \ 772 V(LoadIC_LoadApiGetterStub) \ 773 V(LoadIC_LoadCallback) \ 774 V(LoadIC_LoadConstantDH) \ 775 V(LoadIC_LoadConstantFromPrototypeDH) \ 776 V(LoadIC_LoadConstant) \ 777 V(LoadIC_LoadConstantStub) \ 778 V(LoadIC_LoadFieldDH) \ 779 V(LoadIC_LoadFieldFromPrototypeDH) \ 780 V(LoadIC_LoadField) \ 781 V(LoadIC_LoadFieldStub) \ 782 V(LoadIC_LoadGlobal) \ 783 V(LoadIC_LoadInterceptor) \ 784 V(LoadIC_LoadNonexistentDH) \ 785 V(LoadIC_LoadNonexistent) \ 786 V(LoadIC_LoadNormal) \ 787 V(LoadIC_LoadScriptContextFieldStub) \ 788 V(LoadIC_LoadViaGetter) \ 789 V(LoadIC_Premonomorphic) \ 790 V(LoadIC_SlowStub) \ 791 V(LoadIC_StringLengthStub) \ 792 V(StoreIC_HandlerCacheHit_AccessCheck) \ 793 V(StoreIC_HandlerCacheHit_Exotic) \ 794 V(StoreIC_HandlerCacheHit_Interceptor) \ 795 V(StoreIC_HandlerCacheHit_JSProxy) \ 796 V(StoreIC_HandlerCacheHit_NonExistent) \ 797 V(StoreIC_HandlerCacheHit_Accessor) \ 798 V(StoreIC_HandlerCacheHit_Data) \ 799 V(StoreIC_HandlerCacheHit_Transition) \ 800 V(StoreIC_Premonomorphic) \ 801 V(StoreIC_SlowStub) \ 802 V(StoreIC_StoreCallback) \ 803 V(StoreIC_StoreField) \ 804 V(StoreIC_StoreFieldDH) \ 805 V(StoreIC_StoreFieldStub) \ 806 V(StoreIC_StoreGlobal) \ 807 V(StoreIC_StoreGlobalTransition) \ 808 V(StoreIC_StoreInterceptorStub) \ 809 V(StoreIC_StoreNormal) \ 810 V(StoreIC_StoreScriptContextFieldStub) \ 811 V(StoreIC_StoreTransition) \ 812 V(StoreIC_StoreTransitionDH) \ 813 V(StoreIC_StoreViaSetter) 814 815 class RuntimeCallStats : public ZoneObject { 816 public: 817 typedef RuntimeCallCounter RuntimeCallStats::*CounterId; 818 819 #define CALL_RUNTIME_COUNTER(name) \ 820 RuntimeCallCounter name = RuntimeCallCounter(#name); 821 FOR_EACH_MANUAL_COUNTER(CALL_RUNTIME_COUNTER) 822 #undef CALL_RUNTIME_COUNTER 823 #define CALL_RUNTIME_COUNTER(name, nargs, ressize) \ 824 RuntimeCallCounter Runtime_##name = RuntimeCallCounter(#name); 825 FOR_EACH_INTRINSIC(CALL_RUNTIME_COUNTER) 826 #undef CALL_RUNTIME_COUNTER 827 #define CALL_BUILTIN_COUNTER(name) \ 828 RuntimeCallCounter Builtin_##name = RuntimeCallCounter(#name); 829 BUILTIN_LIST_C(CALL_BUILTIN_COUNTER) 830 #undef CALL_BUILTIN_COUNTER 831 #define CALL_BUILTIN_COUNTER(name) \ 832 RuntimeCallCounter API_##name = RuntimeCallCounter("API_" #name); 833 FOR_EACH_API_COUNTER(CALL_BUILTIN_COUNTER) 834 #undef CALL_BUILTIN_COUNTER 835 #define CALL_BUILTIN_COUNTER(name) \ 836 RuntimeCallCounter Handler_##name = RuntimeCallCounter(#name); 837 FOR_EACH_HANDLER_COUNTER(CALL_BUILTIN_COUNTER) 838 #undef CALL_BUILTIN_COUNTER 839 840 static const CounterId counters[]; 841 842 // Starting measuring the time for a function. This will establish the 843 // connection to the parent counter for properly calculating the own times. 844 static void Enter(RuntimeCallStats* stats, RuntimeCallTimer* timer, 845 CounterId counter_id); 846 847 // Leave a scope for a measured runtime function. This will properly add 848 // the time delta to the current_counter and subtract the delta from its 849 // parent. 850 static void Leave(RuntimeCallStats* stats, RuntimeCallTimer* timer); 851 852 // Set counter id for the innermost measurement. It can be used to refine 853 // event kind when a runtime entry counter is too generic. 854 static void CorrectCurrentCounterId(RuntimeCallStats* stats, 855 CounterId counter_id); 856 857 void Reset(); 858 // Add all entries from another stats object. 859 void Add(RuntimeCallStats* other); 860 void Print(std::ostream& os); 861 V8_NOINLINE void Dump(v8::tracing::TracedValue* value); 862 863 RuntimeCallStats() { 864 Reset(); 865 in_use_ = false; 866 } 867 868 RuntimeCallTimer* current_timer() { return current_timer_.Value(); } 869 bool InUse() { return in_use_; } 870 871 private: 872 // Counter to track recursive time events. 873 base::AtomicValue<RuntimeCallTimer*> current_timer_; 874 // Used to track nested tracing scopes. 875 bool in_use_; 876 }; 877 878 #define CHANGE_CURRENT_RUNTIME_COUNTER(runtime_call_stats, counter_name) \ 879 do { \ 880 if (V8_UNLIKELY(FLAG_runtime_stats)) { \ 881 RuntimeCallStats::CorrectCurrentCounterId( \ 882 runtime_call_stats, &RuntimeCallStats::counter_name); \ 883 } \ 884 } while (false) 885 886 #define TRACE_HANDLER_STATS(isolate, counter_name) \ 887 CHANGE_CURRENT_RUNTIME_COUNTER(isolate->counters()->runtime_call_stats(), \ 888 Handler_##counter_name) 889 890 #define HISTOGRAM_RANGE_LIST(HR) \ 891 /* Generic range histograms */ \ 892 HR(detached_context_age_in_gc, V8.DetachedContextAgeInGC, 0, 20, 21) \ 893 HR(gc_idle_time_allotted_in_ms, V8.GCIdleTimeAllottedInMS, 0, 10000, 101) \ 894 HR(gc_idle_time_limit_overshot, V8.GCIdleTimeLimit.Overshot, 0, 10000, 101) \ 895 HR(gc_idle_time_limit_undershot, V8.GCIdleTimeLimit.Undershot, 0, 10000, \ 896 101) \ 897 HR(code_cache_reject_reason, V8.CodeCacheRejectReason, 1, 6, 6) \ 898 HR(errors_thrown_per_context, V8.ErrorsThrownPerContext, 0, 200, 20) \ 899 HR(debug_feature_usage, V8.DebugFeatureUsage, 1, 7, 7) \ 900 HR(incremental_marking_reason, V8.GCIncrementalMarkingReason, 0, 21, 22) \ 901 HR(mark_compact_reason, V8.GCMarkCompactReason, 0, 21, 22) \ 902 HR(scavenge_reason, V8.GCScavengeReason, 0, 21, 22) \ 903 /* Asm/Wasm. */ \ 904 HR(wasm_functions_per_module, V8.WasmFunctionsPerModule, 1, 10000, 51) 905 906 #define HISTOGRAM_TIMER_LIST(HT) \ 907 /* Garbage collection timers. */ \ 908 HT(gc_compactor, V8.GCCompactor, 10000, MILLISECOND) \ 909 HT(gc_finalize, V8.GCFinalizeMC, 10000, MILLISECOND) \ 910 HT(gc_finalize_reduce_memory, V8.GCFinalizeMCReduceMemory, 10000, \ 911 MILLISECOND) \ 912 HT(gc_scavenger, V8.GCScavenger, 10000, MILLISECOND) \ 913 HT(gc_context, V8.GCContext, 10000, \ 914 MILLISECOND) /* GC context cleanup time */ \ 915 HT(gc_idle_notification, V8.GCIdleNotification, 10000, MILLISECOND) \ 916 HT(gc_incremental_marking, V8.GCIncrementalMarking, 10000, MILLISECOND) \ 917 HT(gc_incremental_marking_start, V8.GCIncrementalMarkingStart, 10000, \ 918 MILLISECOND) \ 919 HT(gc_incremental_marking_finalize, V8.GCIncrementalMarkingFinalize, 10000, \ 920 MILLISECOND) \ 921 HT(gc_low_memory_notification, V8.GCLowMemoryNotification, 10000, \ 922 MILLISECOND) \ 923 /* Compilation times. */ \ 924 HT(compile, V8.CompileMicroSeconds, 1000000, MICROSECOND) \ 925 HT(compile_eval, V8.CompileEvalMicroSeconds, 1000000, MICROSECOND) \ 926 /* Serialization as part of compilation (code caching) */ \ 927 HT(compile_serialize, V8.CompileSerializeMicroSeconds, 100000, MICROSECOND) \ 928 HT(compile_deserialize, V8.CompileDeserializeMicroSeconds, 1000000, \ 929 MICROSECOND) \ 930 /* Total compilation time incl. caching/parsing */ \ 931 HT(compile_script, V8.CompileScriptMicroSeconds, 1000000, MICROSECOND) \ 932 /* Total JavaScript execution time (including callbacks and runtime calls */ \ 933 HT(execute, V8.Execute, 1000000, MICROSECOND) \ 934 /* Asm/Wasm */ \ 935 HT(wasm_instantiate_module_time, V8.WasmInstantiateModuleMicroSeconds, \ 936 1000000, MICROSECOND) \ 937 HT(wasm_decode_module_time, V8.WasmDecodeModuleMicroSeconds, 1000000, \ 938 MICROSECOND) \ 939 HT(wasm_decode_function_time, V8.WasmDecodeFunctionMicroSeconds, 1000000, \ 940 MICROSECOND) \ 941 HT(wasm_compile_module_time, V8.WasmCompileModuleMicroSeconds, 1000000, \ 942 MICROSECOND) \ 943 HT(wasm_compile_function_time, V8.WasmCompileFunctionMicroSeconds, 1000000, \ 944 MICROSECOND) 945 946 #define AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) \ 947 AHT(compile_lazy, V8.CompileLazyMicroSeconds) 948 949 #define HISTOGRAM_PERCENTAGE_LIST(HP) \ 950 /* Heap fragmentation. */ \ 951 HP(external_fragmentation_total, V8.MemoryExternalFragmentationTotal) \ 952 HP(external_fragmentation_old_space, V8.MemoryExternalFragmentationOldSpace) \ 953 HP(external_fragmentation_code_space, \ 954 V8.MemoryExternalFragmentationCodeSpace) \ 955 HP(external_fragmentation_map_space, V8.MemoryExternalFragmentationMapSpace) \ 956 HP(external_fragmentation_lo_space, V8.MemoryExternalFragmentationLoSpace) \ 957 /* Percentages of heap committed to each space. */ \ 958 HP(heap_fraction_new_space, V8.MemoryHeapFractionNewSpace) \ 959 HP(heap_fraction_old_space, V8.MemoryHeapFractionOldSpace) \ 960 HP(heap_fraction_code_space, V8.MemoryHeapFractionCodeSpace) \ 961 HP(heap_fraction_map_space, V8.MemoryHeapFractionMapSpace) \ 962 HP(heap_fraction_lo_space, V8.MemoryHeapFractionLoSpace) 963 964 #define HISTOGRAM_LEGACY_MEMORY_LIST(HM) \ 965 HM(heap_sample_total_committed, V8.MemoryHeapSampleTotalCommitted) \ 966 HM(heap_sample_total_used, V8.MemoryHeapSampleTotalUsed) \ 967 HM(heap_sample_map_space_committed, V8.MemoryHeapSampleMapSpaceCommitted) \ 968 HM(heap_sample_code_space_committed, V8.MemoryHeapSampleCodeSpaceCommitted) \ 969 HM(heap_sample_maximum_committed, V8.MemoryHeapSampleMaximumCommitted) 970 971 #define HISTOGRAM_MEMORY_LIST(HM) \ 972 HM(memory_heap_committed, V8.MemoryHeapCommitted) \ 973 HM(memory_heap_used, V8.MemoryHeapUsed) \ 974 /* Asm/Wasm */ \ 975 HM(wasm_decode_module_peak_memory_bytes, V8.WasmDecodeModulePeakMemoryBytes) \ 976 HM(wasm_compile_function_peak_memory_bytes, \ 977 V8.WasmCompileFunctionPeakMemoryBytes) \ 978 HM(wasm_min_mem_pages_count, V8.WasmMinMemPagesCount) \ 979 HM(wasm_max_mem_pages_count, V8.WasmMaxMemPagesCount) \ 980 HM(wasm_function_size_bytes, V8.WasmFunctionSizeBytes) \ 981 HM(wasm_module_size_bytes, V8.WasmModuleSizeBytes) 982 983 // WARNING: STATS_COUNTER_LIST_* is a very large macro that is causing MSVC 984 // Intellisense to crash. It was broken into two macros (each of length 40 985 // lines) rather than one macro (of length about 80 lines) to work around 986 // this problem. Please avoid using recursive macros of this length when 987 // possible. 988 #define STATS_COUNTER_LIST_1(SC) \ 989 /* Global Handle Count*/ \ 990 SC(global_handles, V8.GlobalHandles) \ 991 /* OS Memory allocated */ \ 992 SC(memory_allocated, V8.OsMemoryAllocated) \ 993 SC(maps_normalized, V8.MapsNormalized) \ 994 SC(maps_created, V8.MapsCreated) \ 995 SC(elements_transitions, V8.ObjectElementsTransitions) \ 996 SC(props_to_dictionary, V8.ObjectPropertiesToDictionary) \ 997 SC(elements_to_dictionary, V8.ObjectElementsToDictionary) \ 998 SC(alive_after_last_gc, V8.AliveAfterLastGC) \ 999 SC(objs_since_last_young, V8.ObjsSinceLastYoung) \ 1000 SC(objs_since_last_full, V8.ObjsSinceLastFull) \ 1001 SC(string_table_capacity, V8.StringTableCapacity) \ 1002 SC(number_of_symbols, V8.NumberOfSymbols) \ 1003 SC(script_wrappers, V8.ScriptWrappers) \ 1004 SC(inlined_copied_elements, V8.InlinedCopiedElements) \ 1005 SC(arguments_adaptors, V8.ArgumentsAdaptors) \ 1006 SC(compilation_cache_hits, V8.CompilationCacheHits) \ 1007 SC(compilation_cache_misses, V8.CompilationCacheMisses) \ 1008 /* Amount of evaled source code. */ \ 1009 SC(total_eval_size, V8.TotalEvalSize) \ 1010 /* Amount of loaded source code. */ \ 1011 SC(total_load_size, V8.TotalLoadSize) \ 1012 /* Amount of parsed source code. */ \ 1013 SC(total_parse_size, V8.TotalParseSize) \ 1014 /* Amount of source code skipped over using preparsing. */ \ 1015 SC(total_preparse_skipped, V8.TotalPreparseSkipped) \ 1016 /* Amount of compiled source code. */ \ 1017 SC(total_compile_size, V8.TotalCompileSize) \ 1018 /* Amount of source code compiled with the full codegen. */ \ 1019 SC(total_full_codegen_source_size, V8.TotalFullCodegenSourceSize) \ 1020 /* Number of contexts created from scratch. */ \ 1021 SC(contexts_created_from_scratch, V8.ContextsCreatedFromScratch) \ 1022 /* Number of contexts created by partial snapshot. */ \ 1023 SC(contexts_created_by_snapshot, V8.ContextsCreatedBySnapshot) \ 1024 /* Number of code objects found from pc. */ \ 1025 SC(pc_to_code, V8.PcToCode) \ 1026 SC(pc_to_code_cached, V8.PcToCodeCached) \ 1027 /* The store-buffer implementation of the write barrier. */ \ 1028 SC(store_buffer_overflows, V8.StoreBufferOverflows) 1029 1030 #define STATS_COUNTER_LIST_2(SC) \ 1031 /* Number of code stubs. */ \ 1032 SC(code_stubs, V8.CodeStubs) \ 1033 /* Amount of stub code. */ \ 1034 SC(total_stubs_code_size, V8.TotalStubsCodeSize) \ 1035 /* Amount of (JS) compiled code. */ \ 1036 SC(total_compiled_code_size, V8.TotalCompiledCodeSize) \ 1037 SC(gc_compactor_caused_by_request, V8.GCCompactorCausedByRequest) \ 1038 SC(gc_compactor_caused_by_promoted_data, V8.GCCompactorCausedByPromotedData) \ 1039 SC(gc_compactor_caused_by_oldspace_exhaustion, \ 1040 V8.GCCompactorCausedByOldspaceExhaustion) \ 1041 SC(gc_last_resort_from_js, V8.GCLastResortFromJS) \ 1042 SC(gc_last_resort_from_handles, V8.GCLastResortFromHandles) \ 1043 SC(ic_keyed_load_generic_smi, V8.ICKeyedLoadGenericSmi) \ 1044 SC(ic_keyed_load_generic_symbol, V8.ICKeyedLoadGenericSymbol) \ 1045 SC(ic_keyed_load_generic_slow, V8.ICKeyedLoadGenericSlow) \ 1046 SC(ic_named_load_global_stub, V8.ICNamedLoadGlobalStub) \ 1047 SC(ic_store_normal_miss, V8.ICStoreNormalMiss) \ 1048 SC(ic_store_normal_hit, V8.ICStoreNormalHit) \ 1049 SC(ic_binary_op_miss, V8.ICBinaryOpMiss) \ 1050 SC(ic_compare_miss, V8.ICCompareMiss) \ 1051 SC(ic_call_miss, V8.ICCallMiss) \ 1052 SC(ic_keyed_call_miss, V8.ICKeyedCallMiss) \ 1053 SC(ic_load_miss, V8.ICLoadMiss) \ 1054 SC(ic_keyed_load_miss, V8.ICKeyedLoadMiss) \ 1055 SC(ic_store_miss, V8.ICStoreMiss) \ 1056 SC(ic_keyed_store_miss, V8.ICKeyedStoreMiss) \ 1057 SC(cow_arrays_created_runtime, V8.COWArraysCreatedRuntime) \ 1058 SC(cow_arrays_converted, V8.COWArraysConverted) \ 1059 SC(constructed_objects, V8.ConstructedObjects) \ 1060 SC(constructed_objects_runtime, V8.ConstructedObjectsRuntime) \ 1061 SC(negative_lookups, V8.NegativeLookups) \ 1062 SC(negative_lookups_miss, V8.NegativeLookupsMiss) \ 1063 SC(megamorphic_stub_cache_probes, V8.MegamorphicStubCacheProbes) \ 1064 SC(megamorphic_stub_cache_misses, V8.MegamorphicStubCacheMisses) \ 1065 SC(megamorphic_stub_cache_updates, V8.MegamorphicStubCacheUpdates) \ 1066 SC(enum_cache_hits, V8.EnumCacheHits) \ 1067 SC(enum_cache_misses, V8.EnumCacheMisses) \ 1068 SC(fast_new_closure_total, V8.FastNewClosureTotal) \ 1069 SC(string_add_runtime, V8.StringAddRuntime) \ 1070 SC(string_add_native, V8.StringAddNative) \ 1071 SC(string_add_runtime_ext_to_one_byte, V8.StringAddRuntimeExtToOneByte) \ 1072 SC(sub_string_runtime, V8.SubStringRuntime) \ 1073 SC(sub_string_native, V8.SubStringNative) \ 1074 SC(string_compare_native, V8.StringCompareNative) \ 1075 SC(string_compare_runtime, V8.StringCompareRuntime) \ 1076 SC(regexp_entry_runtime, V8.RegExpEntryRuntime) \ 1077 SC(regexp_entry_native, V8.RegExpEntryNative) \ 1078 SC(number_to_string_native, V8.NumberToStringNative) \ 1079 SC(number_to_string_runtime, V8.NumberToStringRuntime) \ 1080 SC(math_exp_runtime, V8.MathExpRuntime) \ 1081 SC(math_log_runtime, V8.MathLogRuntime) \ 1082 SC(math_pow_runtime, V8.MathPowRuntime) \ 1083 SC(stack_interrupts, V8.StackInterrupts) \ 1084 SC(runtime_profiler_ticks, V8.RuntimeProfilerTicks) \ 1085 SC(runtime_calls, V8.RuntimeCalls) \ 1086 SC(bounds_checks_eliminated, V8.BoundsChecksEliminated) \ 1087 SC(bounds_checks_hoisted, V8.BoundsChecksHoisted) \ 1088 SC(soft_deopts_requested, V8.SoftDeoptsRequested) \ 1089 SC(soft_deopts_inserted, V8.SoftDeoptsInserted) \ 1090 SC(soft_deopts_executed, V8.SoftDeoptsExecuted) \ 1091 /* Number of write barriers in generated code. */ \ 1092 SC(write_barriers_dynamic, V8.WriteBarriersDynamic) \ 1093 SC(write_barriers_static, V8.WriteBarriersStatic) \ 1094 SC(new_space_bytes_available, V8.MemoryNewSpaceBytesAvailable) \ 1095 SC(new_space_bytes_committed, V8.MemoryNewSpaceBytesCommitted) \ 1096 SC(new_space_bytes_used, V8.MemoryNewSpaceBytesUsed) \ 1097 SC(old_space_bytes_available, V8.MemoryOldSpaceBytesAvailable) \ 1098 SC(old_space_bytes_committed, V8.MemoryOldSpaceBytesCommitted) \ 1099 SC(old_space_bytes_used, V8.MemoryOldSpaceBytesUsed) \ 1100 SC(code_space_bytes_available, V8.MemoryCodeSpaceBytesAvailable) \ 1101 SC(code_space_bytes_committed, V8.MemoryCodeSpaceBytesCommitted) \ 1102 SC(code_space_bytes_used, V8.MemoryCodeSpaceBytesUsed) \ 1103 SC(map_space_bytes_available, V8.MemoryMapSpaceBytesAvailable) \ 1104 SC(map_space_bytes_committed, V8.MemoryMapSpaceBytesCommitted) \ 1105 SC(map_space_bytes_used, V8.MemoryMapSpaceBytesUsed) \ 1106 SC(lo_space_bytes_available, V8.MemoryLoSpaceBytesAvailable) \ 1107 SC(lo_space_bytes_committed, V8.MemoryLoSpaceBytesCommitted) \ 1108 SC(lo_space_bytes_used, V8.MemoryLoSpaceBytesUsed) \ 1109 SC(turbo_escape_allocs_replaced, V8.TurboEscapeAllocsReplaced) \ 1110 SC(crankshaft_escape_allocs_replaced, V8.CrankshaftEscapeAllocsReplaced) \ 1111 SC(turbo_escape_loads_replaced, V8.TurboEscapeLoadsReplaced) \ 1112 SC(crankshaft_escape_loads_replaced, V8.CrankshaftEscapeLoadsReplaced) \ 1113 /* Total code size (including metadata) of baseline code or bytecode. */ \ 1114 SC(total_baseline_code_size, V8.TotalBaselineCodeSize) \ 1115 /* Total count of functions compiled using the baseline compiler. */ \ 1116 SC(total_baseline_compile_count, V8.TotalBaselineCompileCount) \ 1117 SC(wasm_generated_code_size, V8.WasmGeneratedCodeBytes) \ 1118 SC(wasm_reloc_size, V8.WasmRelocBytes) 1119 1120 // This file contains all the v8 counters that are in use. 1121 class Counters { 1122 public: 1123 #define HR(name, caption, min, max, num_buckets) \ 1124 Histogram* name() { return &name##_; } 1125 HISTOGRAM_RANGE_LIST(HR) 1126 #undef HR 1127 1128 #define HT(name, caption, max, res) \ 1129 HistogramTimer* name() { return &name##_; } 1130 HISTOGRAM_TIMER_LIST(HT) 1131 #undef HT 1132 1133 #define AHT(name, caption) \ 1134 AggregatableHistogramTimer* name() { return &name##_; } 1135 AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) 1136 #undef AHT 1137 1138 #define HP(name, caption) \ 1139 Histogram* name() { return &name##_; } 1140 HISTOGRAM_PERCENTAGE_LIST(HP) 1141 #undef HP 1142 1143 #define HM(name, caption) \ 1144 Histogram* name() { return &name##_; } 1145 HISTOGRAM_LEGACY_MEMORY_LIST(HM) 1146 HISTOGRAM_MEMORY_LIST(HM) 1147 #undef HM 1148 1149 #define HM(name, caption) \ 1150 AggregatedMemoryHistogram<Histogram>* aggregated_##name() { \ 1151 return &aggregated_##name##_; \ 1152 } 1153 HISTOGRAM_MEMORY_LIST(HM) 1154 #undef HM 1155 1156 #define SC(name, caption) \ 1157 StatsCounter* name() { return &name##_; } 1158 STATS_COUNTER_LIST_1(SC) 1159 STATS_COUNTER_LIST_2(SC) 1160 #undef SC 1161 1162 #define SC(name) \ 1163 StatsCounter* count_of_##name() { return &count_of_##name##_; } \ 1164 StatsCounter* size_of_##name() { return &size_of_##name##_; } 1165 INSTANCE_TYPE_LIST(SC) 1166 #undef SC 1167 1168 #define SC(name) \ 1169 StatsCounter* count_of_CODE_TYPE_##name() \ 1170 { return &count_of_CODE_TYPE_##name##_; } \ 1171 StatsCounter* size_of_CODE_TYPE_##name() \ 1172 { return &size_of_CODE_TYPE_##name##_; } 1173 CODE_KIND_LIST(SC) 1174 #undef SC 1175 1176 #define SC(name) \ 1177 StatsCounter* count_of_FIXED_ARRAY_##name() \ 1178 { return &count_of_FIXED_ARRAY_##name##_; } \ 1179 StatsCounter* size_of_FIXED_ARRAY_##name() \ 1180 { return &size_of_FIXED_ARRAY_##name##_; } 1181 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC) 1182 #undef SC 1183 1184 #define SC(name) \ 1185 StatsCounter* count_of_CODE_AGE_##name() \ 1186 { return &count_of_CODE_AGE_##name##_; } \ 1187 StatsCounter* size_of_CODE_AGE_##name() \ 1188 { return &size_of_CODE_AGE_##name##_; } 1189 CODE_AGE_LIST_COMPLETE(SC) 1190 #undef SC 1191 1192 enum Id { 1193 #define RATE_ID(name, caption, max, res) k_##name, 1194 HISTOGRAM_TIMER_LIST(RATE_ID) 1195 #undef RATE_ID 1196 #define AGGREGATABLE_ID(name, caption) k_##name, 1197 AGGREGATABLE_HISTOGRAM_TIMER_LIST(AGGREGATABLE_ID) 1198 #undef AGGREGATABLE_ID 1199 #define PERCENTAGE_ID(name, caption) k_##name, 1200 HISTOGRAM_PERCENTAGE_LIST(PERCENTAGE_ID) 1201 #undef PERCENTAGE_ID 1202 #define MEMORY_ID(name, caption) k_##name, 1203 HISTOGRAM_LEGACY_MEMORY_LIST(MEMORY_ID) 1204 HISTOGRAM_MEMORY_LIST(MEMORY_ID) 1205 #undef MEMORY_ID 1206 #define COUNTER_ID(name, caption) k_##name, 1207 STATS_COUNTER_LIST_1(COUNTER_ID) 1208 STATS_COUNTER_LIST_2(COUNTER_ID) 1209 #undef COUNTER_ID 1210 #define COUNTER_ID(name) kCountOf##name, kSizeOf##name, 1211 INSTANCE_TYPE_LIST(COUNTER_ID) 1212 #undef COUNTER_ID 1213 #define COUNTER_ID(name) kCountOfCODE_TYPE_##name, \ 1214 kSizeOfCODE_TYPE_##name, 1215 CODE_KIND_LIST(COUNTER_ID) 1216 #undef COUNTER_ID 1217 #define COUNTER_ID(name) kCountOfFIXED_ARRAY__##name, \ 1218 kSizeOfFIXED_ARRAY__##name, 1219 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(COUNTER_ID) 1220 #undef COUNTER_ID 1221 #define COUNTER_ID(name) kCountOfCODE_AGE__##name, \ 1222 kSizeOfCODE_AGE__##name, 1223 CODE_AGE_LIST_COMPLETE(COUNTER_ID) 1224 #undef COUNTER_ID 1225 stats_counter_count 1226 }; 1227 1228 void ResetCounters(); 1229 void ResetHistograms(); 1230 RuntimeCallStats* runtime_call_stats() { return &runtime_call_stats_; } 1231 1232 private: 1233 #define HR(name, caption, min, max, num_buckets) Histogram name##_; 1234 HISTOGRAM_RANGE_LIST(HR) 1235 #undef HR 1236 1237 #define HT(name, caption, max, res) HistogramTimer name##_; 1238 HISTOGRAM_TIMER_LIST(HT) 1239 #undef HT 1240 1241 #define AHT(name, caption) \ 1242 AggregatableHistogramTimer name##_; 1243 AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) 1244 #undef AHT 1245 1246 #define HP(name, caption) \ 1247 Histogram name##_; 1248 HISTOGRAM_PERCENTAGE_LIST(HP) 1249 #undef HP 1250 1251 #define HM(name, caption) \ 1252 Histogram name##_; 1253 HISTOGRAM_LEGACY_MEMORY_LIST(HM) 1254 HISTOGRAM_MEMORY_LIST(HM) 1255 #undef HM 1256 1257 #define HM(name, caption) \ 1258 AggregatedMemoryHistogram<Histogram> aggregated_##name##_; 1259 HISTOGRAM_MEMORY_LIST(HM) 1260 #undef HM 1261 1262 #define SC(name, caption) \ 1263 StatsCounter name##_; 1264 STATS_COUNTER_LIST_1(SC) 1265 STATS_COUNTER_LIST_2(SC) 1266 #undef SC 1267 1268 #define SC(name) \ 1269 StatsCounter size_of_##name##_; \ 1270 StatsCounter count_of_##name##_; 1271 INSTANCE_TYPE_LIST(SC) 1272 #undef SC 1273 1274 #define SC(name) \ 1275 StatsCounter size_of_CODE_TYPE_##name##_; \ 1276 StatsCounter count_of_CODE_TYPE_##name##_; 1277 CODE_KIND_LIST(SC) 1278 #undef SC 1279 1280 #define SC(name) \ 1281 StatsCounter size_of_FIXED_ARRAY_##name##_; \ 1282 StatsCounter count_of_FIXED_ARRAY_##name##_; 1283 FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC) 1284 #undef SC 1285 1286 #define SC(name) \ 1287 StatsCounter size_of_CODE_AGE_##name##_; \ 1288 StatsCounter count_of_CODE_AGE_##name##_; 1289 CODE_AGE_LIST_COMPLETE(SC) 1290 #undef SC 1291 1292 RuntimeCallStats runtime_call_stats_; 1293 1294 friend class Isolate; 1295 1296 explicit Counters(Isolate* isolate); 1297 1298 DISALLOW_IMPLICIT_CONSTRUCTORS(Counters); 1299 }; 1300 1301 // A RuntimeCallTimerScopes wraps around a RuntimeCallTimer to measure the 1302 // the time of C++ scope. 1303 class RuntimeCallTimerScope { 1304 public: 1305 inline RuntimeCallTimerScope(Isolate* isolate, 1306 RuntimeCallStats::CounterId counter_id); 1307 // This constructor is here just to avoid calling GetIsolate() when the 1308 // stats are disabled and the isolate is not directly available. 1309 inline RuntimeCallTimerScope(HeapObject* heap_object, 1310 RuntimeCallStats::CounterId counter_id); 1311 inline RuntimeCallTimerScope(RuntimeCallStats* stats, 1312 RuntimeCallStats::CounterId counter_id); 1313 1314 inline ~RuntimeCallTimerScope() { 1315 if (V8_UNLIKELY(stats_ != nullptr)) { 1316 RuntimeCallStats::Leave(stats_, &timer_); 1317 } 1318 } 1319 1320 private: 1321 V8_INLINE void Initialize(RuntimeCallStats* stats, 1322 RuntimeCallStats::CounterId counter_id) { 1323 stats_ = stats; 1324 RuntimeCallStats::Enter(stats_, &timer_, counter_id); 1325 } 1326 1327 RuntimeCallStats* stats_ = nullptr; 1328 RuntimeCallTimer timer_; 1329 }; 1330 1331 } // namespace internal 1332 } // namespace v8 1333 1334 #endif // V8_COUNTERS_H_ 1335
