Line data Source code
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/globals.h"
14 : #include "src/heap-symbols.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 Counters;
30 :
31 : class StatsTable {
32 : public:
33 : // Register an application-defined function for recording
34 : // subsequent counter statistics.
35 : void SetCounterFunction(CounterLookupCallback f);
36 :
37 : // Register an application-defined function to create histograms for
38 : // recording subsequent histogram samples.
39 : void SetCreateHistogramFunction(CreateHistogramCallback f) {
40 5 : 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 5 : add_histogram_sample_function_ = f;
47 : }
48 :
49 : bool HasCounterFunction() const { return lookup_function_ != nullptr; }
50 :
51 : // Lookup the location of a counter by name. If the lookup
52 : // is successful, returns a non-nullptr pointer for writing the
53 : // value of the counter. Each thread calling this function
54 : // may receive a different location to store it's counter.
55 : // The return value must not be cached and re-used across
56 : // threads, although a single thread is free to cache it.
57 : int* FindLocation(const char* name) {
58 1155978 : if (!lookup_function_) return nullptr;
59 0 : return lookup_function_(name);
60 : }
61 :
62 : // Create a histogram by name. If the create is successful,
63 : // returns a non-nullptr pointer for use with AddHistogramSample
64 : // function. min and max define the expected minimum and maximum
65 : // sample values. buckets is the maximum number of buckets
66 : // that the samples will be grouped into.
67 : void* CreateHistogram(const char* name,
68 : int min,
69 : int max,
70 : size_t buckets) {
71 350 : if (!create_histogram_function_) return nullptr;
72 0 : return create_histogram_function_(name, min, max, buckets);
73 : }
74 :
75 : // Add a sample to a histogram created with the CreateHistogram
76 : // function.
77 : void AddHistogramSample(void* histogram, int sample) {
78 0 : if (!add_histogram_sample_function_) return;
79 0 : return add_histogram_sample_function_(histogram, sample);
80 : }
81 :
82 : private:
83 : friend class Counters;
84 :
85 : explicit StatsTable(Counters* counters);
86 :
87 : CounterLookupCallback lookup_function_;
88 : CreateHistogramCallback create_histogram_function_;
89 : AddHistogramSampleCallback add_histogram_sample_function_;
90 :
91 : DISALLOW_COPY_AND_ASSIGN(StatsTable);
92 : };
93 :
94 : // Base class for stats counters.
95 : class StatsCounterBase {
96 : protected:
97 : Counters* counters_;
98 : const char* name_;
99 : int* ptr_;
100 :
101 : StatsCounterBase() {}
102 : StatsCounterBase(Counters* counters, const char* name)
103 164997 : : counters_(counters), name_(name), ptr_(nullptr) {}
104 :
105 0 : void SetLoc(int* loc, int value) { *loc = value; }
106 0 : void IncrementLoc(int* loc) { (*loc)++; }
107 0 : void IncrementLoc(int* loc, int value) { (*loc) += value; }
108 0 : void DecrementLoc(int* loc) { (*loc)--; }
109 0 : void DecrementLoc(int* loc, int value) { (*loc) -= value; }
110 :
111 : int* FindLocationInStatsTable() const;
112 : };
113 :
114 : // StatsCounters are dynamically created values which can be tracked in
115 : // the StatsTable. They are designed to be lightweight to create and
116 : // easy to use.
117 : //
118 : // Internally, a counter represents a value in a row of a StatsTable.
119 : // The row has a 32bit value for each process/thread in the table and also
120 : // a name (stored in the table metadata). Since the storage location can be
121 : // thread-specific, this class cannot be shared across threads. Note: This
122 : // class is not thread safe.
123 : class StatsCounter : public StatsCounterBase {
124 : public:
125 : // Sets the counter to a specific value.
126 1699388 : void Set(int value) {
127 1699388 : if (int* loc = GetPtr()) SetLoc(loc, value);
128 1699388 : }
129 :
130 : // Increments the counter.
131 225818362 : void Increment() {
132 225818362 : if (int* loc = GetPtr()) IncrementLoc(loc);
133 225818362 : }
134 :
135 18842411 : void Increment(int value) {
136 18842411 : if (int* loc = GetPtr()) IncrementLoc(loc, value);
137 18842411 : }
138 :
139 : // Decrements the counter.
140 2983389 : void Decrement() {
141 2983389 : if (int* loc = GetPtr()) DecrementLoc(loc);
142 2983389 : }
143 :
144 1031813 : void Decrement(int value) {
145 1031813 : if (int* loc = GetPtr()) DecrementLoc(loc, value);
146 1031813 : }
147 :
148 : // Is this counter enabled?
149 : // Returns false if table is full.
150 : bool Enabled() { return GetPtr() != nullptr; }
151 :
152 : // Get the internal pointer to the counter. This is used
153 : // by the code generator to emit code that manipulates a
154 : // given counter without calling the runtime system.
155 : int* GetInternalPointer() {
156 : int* loc = GetPtr();
157 : DCHECK_NOT_NULL(loc);
158 : return loc;
159 : }
160 :
161 : private:
162 : friend class Counters;
163 :
164 : StatsCounter() {}
165 : StatsCounter(Counters* counters, const char* name)
166 : : StatsCounterBase(counters, name), lookup_done_(false) {}
167 :
168 : // Reset the cached internal pointer.
169 10 : void Reset() { lookup_done_ = false; }
170 :
171 : // Returns the cached address of this counter location.
172 : int* GetPtr() {
173 250375363 : if (lookup_done_) return ptr_;
174 1155963 : lookup_done_ = true;
175 1155963 : ptr_ = FindLocationInStatsTable();
176 : return ptr_;
177 : }
178 :
179 : bool lookup_done_;
180 : };
181 :
182 : // Thread safe version of StatsCounter.
183 53365 : class StatsCounterThreadSafe : public StatsCounterBase {
184 : public:
185 : void Set(int Value);
186 : void Increment();
187 : void Increment(int value);
188 : void Decrement();
189 : void Decrement(int value);
190 : bool Enabled() { return ptr_ != nullptr; }
191 : int* GetInternalPointer() {
192 : DCHECK_NOT_NULL(ptr_);
193 : return ptr_;
194 : }
195 :
196 : private:
197 : friend class Counters;
198 :
199 : StatsCounterThreadSafe(Counters* counters, const char* name);
200 15 : void Reset() { ptr_ = FindLocationInStatsTable(); }
201 :
202 : base::Mutex mutex_;
203 :
204 : DISALLOW_IMPLICIT_CONSTRUCTORS(StatsCounterThreadSafe);
205 : };
206 :
207 : // A Histogram represents a dynamically created histogram in the
208 : // StatsTable. Note: This class is thread safe.
209 : class Histogram {
210 : public:
211 : // Add a single sample to this histogram.
212 : void AddSample(int sample);
213 :
214 : // Returns true if this histogram is enabled.
215 : bool Enabled() { return histogram_ != nullptr; }
216 :
217 : const char* name() { return name_; }
218 :
219 : protected:
220 : Histogram() {}
221 : Histogram(const char* name, int min, int max, int num_buckets,
222 : Counters* counters)
223 : : name_(name),
224 : min_(min),
225 : max_(max),
226 : num_buckets_(num_buckets),
227 : histogram_(nullptr),
228 5 : counters_(counters) {}
229 :
230 : Counters* counters() const { return counters_; }
231 :
232 : // Reset the cached internal pointer.
233 700 : void Reset() { histogram_ = CreateHistogram(); }
234 :
235 : private:
236 : friend class Counters;
237 :
238 : void* CreateHistogram() const;
239 :
240 : const char* name_;
241 : int min_;
242 : int max_;
243 : int num_buckets_;
244 : void* histogram_;
245 : Counters* counters_;
246 : };
247 :
248 : enum class HistogramTimerResolution { MILLISECOND, MICROSECOND };
249 :
250 : // A thread safe histogram timer. It also allows distributions of
251 : // nested timed results.
252 : class TimedHistogram : public Histogram {
253 : public:
254 : // Start the timer. Log if isolate non-null.
255 : void Start(base::ElapsedTimer* timer, Isolate* isolate);
256 :
257 : // Stop the timer and record the results. Log if isolate non-null.
258 : void Stop(base::ElapsedTimer* timer, Isolate* isolate);
259 :
260 : protected:
261 : friend class Counters;
262 : HistogramTimerResolution resolution_;
263 :
264 : TimedHistogram() {}
265 : TimedHistogram(const char* name, int min, int max,
266 : HistogramTimerResolution resolution, int num_buckets,
267 : Counters* counters)
268 : : Histogram(name, min, max, num_buckets, counters),
269 5 : resolution_(resolution) {}
270 : void AddTimeSample();
271 : };
272 :
273 : // Helper class for scoping a TimedHistogram.
274 : class TimedHistogramScope {
275 : public:
276 : explicit TimedHistogramScope(TimedHistogram* histogram,
277 : Isolate* isolate = nullptr)
278 1006590 : : histogram_(histogram), isolate_(isolate) {
279 1006590 : histogram_->Start(&timer_, isolate);
280 : }
281 1006582 : ~TimedHistogramScope() { histogram_->Stop(&timer_, isolate_); }
282 :
283 : private:
284 : base::ElapsedTimer timer_;
285 : TimedHistogram* histogram_;
286 : Isolate* isolate_;
287 :
288 : DISALLOW_IMPLICIT_CONSTRUCTORS(TimedHistogramScope);
289 : };
290 :
291 : // A HistogramTimer allows distributions of non-nested timed results
292 : // to be created. WARNING: This class is not thread safe and can only
293 : // be run on the foreground thread.
294 : class HistogramTimer : public TimedHistogram {
295 : public:
296 : // Note: public for testing purposes only.
297 : HistogramTimer(const char* name, int min, int max,
298 : HistogramTimerResolution resolution, int num_buckets,
299 : Counters* counters)
300 : : TimedHistogram(name, min, max, resolution, num_buckets, counters) {}
301 :
302 : inline void Start();
303 : inline void Stop();
304 :
305 : // Returns true if the timer is running.
306 : bool Running() {
307 : return Enabled() && timer_.IsStarted();
308 : }
309 :
310 : // TODO(bmeurer): Remove this when HistogramTimerScope is fixed.
311 : #ifdef DEBUG
312 : base::ElapsedTimer* timer() { return &timer_; }
313 : #endif
314 :
315 : private:
316 : friend class Counters;
317 :
318 : base::ElapsedTimer timer_;
319 :
320 : HistogramTimer() {}
321 : };
322 :
323 : // Helper class for scoping a HistogramTimer.
324 : // TODO(bmeurer): The ifdeffery is an ugly hack around the fact that the
325 : // Parser is currently reentrant (when it throws an error, we call back
326 : // into JavaScript and all bets are off), but ElapsedTimer is not
327 : // reentry-safe. Fix this properly and remove |allow_nesting|.
328 : class HistogramTimerScope BASE_EMBEDDED {
329 : public:
330 : explicit HistogramTimerScope(HistogramTimer* timer,
331 : bool allow_nesting = false)
332 : #ifdef DEBUG
333 : : timer_(timer),
334 : skipped_timer_start_(false) {
335 : if (timer_->timer()->IsStarted() && allow_nesting) {
336 : skipped_timer_start_ = true;
337 : } else {
338 : timer_->Start();
339 : }
340 : }
341 : #else
342 : : timer_(timer) {
343 : timer_->Start();
344 : }
345 : #endif
346 : ~HistogramTimerScope() {
347 : #ifdef DEBUG
348 : if (!skipped_timer_start_) {
349 : timer_->Stop();
350 : }
351 : #else
352 : timer_->Stop();
353 : #endif
354 : }
355 :
356 : private:
357 : HistogramTimer* timer_;
358 : #ifdef DEBUG
359 : bool skipped_timer_start_;
360 : #endif
361 : };
362 :
363 : // A histogram timer that can aggregate events within a larger scope.
364 : //
365 : // Intended use of this timer is to have an outer (aggregating) and an inner
366 : // (to be aggregated) scope, where the inner scope measure the time of events,
367 : // and all those inner scope measurements will be summed up by the outer scope.
368 : // An example use might be to aggregate the time spent in lazy compilation
369 : // while running a script.
370 : //
371 : // Helpers:
372 : // - AggregatingHistogramTimerScope, the "outer" scope within which
373 : // times will be summed up.
374 : // - AggregatedHistogramTimerScope, the "inner" scope which defines the
375 : // events to be timed.
376 54999 : class AggregatableHistogramTimer : public Histogram {
377 : public:
378 : // Start/stop the "outer" scope.
379 : void Start() { time_ = base::TimeDelta(); }
380 229594 : void Stop() { AddSample(static_cast<int>(time_.InMicroseconds())); }
381 :
382 : // Add a time value ("inner" scope).
383 : void Add(base::TimeDelta other) { time_ += other; }
384 :
385 : private:
386 : friend class Counters;
387 :
388 : AggregatableHistogramTimer() {}
389 : AggregatableHistogramTimer(const char* name, int min, int max,
390 : int num_buckets, Counters* counters)
391 : : Histogram(name, min, max, num_buckets, counters) {}
392 :
393 : base::TimeDelta time_;
394 : };
395 :
396 : // A helper class for use with AggregatableHistogramTimer. This is the
397 : // // outer-most timer scope used with an AggregatableHistogramTimer. It will
398 : // // aggregate the information from the inner AggregatedHistogramTimerScope.
399 : class AggregatingHistogramTimerScope {
400 : public:
401 : explicit AggregatingHistogramTimerScope(AggregatableHistogramTimer* histogram)
402 : : histogram_(histogram) {
403 : histogram_->Start();
404 : }
405 : ~AggregatingHistogramTimerScope() { histogram_->Stop(); }
406 :
407 : private:
408 : AggregatableHistogramTimer* histogram_;
409 : };
410 :
411 : // A helper class for use with AggregatableHistogramTimer, the "inner" scope
412 : // // which defines the events to be timed.
413 : class AggregatedHistogramTimerScope {
414 : public:
415 : explicit AggregatedHistogramTimerScope(AggregatableHistogramTimer* histogram)
416 576607 : : histogram_(histogram) {
417 : timer_.Start();
418 : }
419 1729821 : ~AggregatedHistogramTimerScope() { histogram_->Add(timer_.Elapsed()); }
420 :
421 : private:
422 : base::ElapsedTimer timer_;
423 : AggregatableHistogramTimer* histogram_;
424 : };
425 :
426 :
427 : // AggretatedMemoryHistogram collects (time, value) sample pairs and turns
428 : // them into time-uniform samples for the backing historgram, such that the
429 : // backing histogram receives one sample every T ms, where the T is controlled
430 : // by the FLAG_histogram_interval.
431 : //
432 : // More formally: let F be a real-valued function that maps time to sample
433 : // values. We define F as a linear interpolation between adjacent samples. For
434 : // each time interval [x; x + T) the backing histogram gets one sample value
435 : // that is the average of F(t) in the interval.
436 : template <typename Histogram>
437 : class AggregatedMemoryHistogram {
438 : public:
439 : // Note: public for testing purposes only.
440 : explicit AggregatedMemoryHistogram(Histogram* backing_histogram)
441 : : AggregatedMemoryHistogram() {
442 14 : backing_histogram_ = backing_histogram;
443 : }
444 :
445 : // Invariants that hold before and after AddSample if
446 : // is_initialized_ is true:
447 : //
448 : // 1) For we processed samples that came in before start_ms_ and sent the
449 : // corresponding aggregated samples to backing histogram.
450 : // 2) (last_ms_, last_value_) is the last received sample.
451 : // 3) last_ms_ < start_ms_ + FLAG_histogram_interval.
452 : // 4) aggregate_value_ is the average of the function that is constructed by
453 : // linearly interpolating samples received between start_ms_ and last_ms_.
454 : void AddSample(double current_ms, double current_value);
455 :
456 : private:
457 : friend class Counters;
458 :
459 : AggregatedMemoryHistogram()
460 : : is_initialized_(false),
461 : start_ms_(0.0),
462 : last_ms_(0.0),
463 : aggregate_value_(0.0),
464 : last_value_(0.0),
465 55013 : backing_histogram_(nullptr) {}
466 : double Aggregate(double current_ms, double current_value);
467 :
468 : bool is_initialized_;
469 : double start_ms_;
470 : double last_ms_;
471 : double aggregate_value_;
472 : double last_value_;
473 : Histogram* backing_histogram_;
474 : };
475 :
476 :
477 : template <typename Histogram>
478 356808 : void AggregatedMemoryHistogram<Histogram>::AddSample(double current_ms,
479 : double current_value) {
480 356808 : if (!is_initialized_) {
481 34427 : aggregate_value_ = current_value;
482 34427 : start_ms_ = current_ms;
483 34427 : last_value_ = current_value;
484 34427 : last_ms_ = current_ms;
485 34427 : is_initialized_ = true;
486 : } else {
487 : const double kEpsilon = 1e-6;
488 : const int kMaxSamples = 1000;
489 322381 : if (current_ms < last_ms_ + kEpsilon) {
490 : // Two samples have the same time, remember the last one.
491 22 : last_value_ = current_value;
492 : } else {
493 322359 : double sample_interval_ms = FLAG_histogram_interval;
494 322359 : double end_ms = start_ms_ + sample_interval_ms;
495 322359 : if (end_ms <= current_ms + kEpsilon) {
496 : // Linearly interpolate between the last_ms_ and the current_ms.
497 18 : double slope = (current_value - last_value_) / (current_ms - last_ms_);
498 : int i;
499 : // Send aggregated samples to the backing histogram from the start_ms
500 : // to the current_ms.
501 2038 : for (i = 0; i < kMaxSamples && end_ms <= current_ms + kEpsilon; i++) {
502 2020 : double end_value = last_value_ + (end_ms - last_ms_) * slope;
503 : double sample_value;
504 2020 : if (i == 0) {
505 : // Take aggregate_value_ into account.
506 : sample_value = Aggregate(end_ms, end_value);
507 : } else {
508 : // There is no aggregate_value_ for i > 0.
509 2002 : sample_value = (last_value_ + end_value) / 2;
510 : }
511 2020 : backing_histogram_->AddSample(static_cast<int>(sample_value + 0.5));
512 2020 : last_value_ = end_value;
513 2020 : last_ms_ = end_ms;
514 2020 : end_ms += sample_interval_ms;
515 : }
516 18 : if (i == kMaxSamples) {
517 : // We hit the sample limit, ignore the remaining samples.
518 2 : aggregate_value_ = current_value;
519 2 : start_ms_ = current_ms;
520 : } else {
521 16 : aggregate_value_ = last_value_;
522 16 : start_ms_ = last_ms_;
523 : }
524 : }
525 322375 : aggregate_value_ = current_ms > start_ms_ + kEpsilon
526 : ? Aggregate(current_ms, current_value)
527 : : aggregate_value_;
528 322359 : last_value_ = current_value;
529 322359 : last_ms_ = current_ms;
530 : }
531 : }
532 356808 : }
533 :
534 :
535 : template <typename Histogram>
536 : double AggregatedMemoryHistogram<Histogram>::Aggregate(double current_ms,
537 : double current_value) {
538 322361 : double interval_ms = current_ms - start_ms_;
539 322361 : double value = (current_value + last_value_) / 2;
540 : // The aggregate_value_ is the average for [start_ms_; last_ms_].
541 : // The value is the average for [last_ms_; current_ms].
542 : // Return the weighted average of the aggregate_value_ and the value.
543 : return aggregate_value_ * ((last_ms_ - start_ms_) / interval_ms) +
544 322361 : value * ((current_ms - last_ms_) / interval_ms);
545 : }
546 :
547 : class RuntimeCallCounter final {
548 : public:
549 : explicit RuntimeCallCounter(const char* name)
550 2131328 : : name_(name), count_(0), time_(0) {}
551 : V8_NOINLINE void Reset();
552 : V8_NOINLINE void Dump(v8::tracing::TracedValue* value);
553 : void Add(RuntimeCallCounter* other);
554 :
555 : const char* name() const { return name_; }
556 : int64_t count() const { return count_; }
557 : base::TimeDelta time() const {
558 : return base::TimeDelta::FromMicroseconds(time_);
559 : }
560 0 : void Increment() { count_++; }
561 0 : void Add(base::TimeDelta delta) { time_ += delta.InMicroseconds(); }
562 :
563 : private:
564 : friend class RuntimeCallStats;
565 :
566 : RuntimeCallCounter() {}
567 :
568 : const char* name_;
569 : int64_t count_;
570 : // Stored as int64_t so that its initialization can be deferred.
571 : int64_t time_;
572 : };
573 :
574 : // RuntimeCallTimer is used to keep track of the stack of currently active
575 : // timers used for properly measuring the own time of a RuntimeCallCounter.
576 328841763 : class RuntimeCallTimer final {
577 : public:
578 : RuntimeCallCounter* counter() { return counter_; }
579 0 : void set_counter(RuntimeCallCounter* counter) { counter_ = counter; }
580 : RuntimeCallTimer* parent() const { return parent_.Value(); }
581 : void set_parent(RuntimeCallTimer* timer) { parent_.SetValue(timer); }
582 0 : const char* name() const { return counter_->name(); }
583 :
584 : inline bool IsStarted();
585 :
586 : inline void Start(RuntimeCallCounter* counter, RuntimeCallTimer* parent);
587 : void Snapshot();
588 : inline RuntimeCallTimer* Stop();
589 :
590 : private:
591 : inline void Pause(base::TimeTicks now);
592 : inline void Resume(base::TimeTicks now);
593 : inline void CommitTimeToCounter();
594 : inline base::TimeTicks Now();
595 :
596 : RuntimeCallCounter* counter_ = nullptr;
597 : base::AtomicValue<RuntimeCallTimer*> parent_;
598 : base::TimeTicks start_ticks_;
599 : base::TimeDelta elapsed_;
600 : };
601 :
602 : #define FOR_EACH_GC_COUNTER(V) TRACER_SCOPES(V)
603 :
604 : #define FOR_EACH_API_COUNTER(V) \
605 : V(ArrayBuffer_Cast) \
606 : V(ArrayBuffer_Neuter) \
607 : V(ArrayBuffer_New) \
608 : V(Array_CloneElementAt) \
609 : V(Array_New) \
610 : V(BooleanObject_BooleanValue) \
611 : V(BooleanObject_New) \
612 : V(Context_New) \
613 : V(Context_NewRemoteContext) \
614 : V(DataView_New) \
615 : V(Date_DateTimeConfigurationChangeNotification) \
616 : V(Date_New) \
617 : V(Date_NumberValue) \
618 : V(Debug_Call) \
619 : V(Error_New) \
620 : V(External_New) \
621 : V(Float32Array_New) \
622 : V(Float64Array_New) \
623 : V(Function_Call) \
624 : V(Function_New) \
625 : V(Function_NewInstance) \
626 : V(FunctionTemplate_GetFunction) \
627 : V(FunctionTemplate_New) \
628 : V(FunctionTemplate_NewRemoteInstance) \
629 : V(FunctionTemplate_NewWithCache) \
630 : V(FunctionTemplate_NewWithFastHandler) \
631 : V(Int16Array_New) \
632 : V(Int32Array_New) \
633 : V(Int8Array_New) \
634 : V(JSON_Parse) \
635 : V(JSON_Stringify) \
636 : V(Map_AsArray) \
637 : V(Map_Clear) \
638 : V(Map_Delete) \
639 : V(Map_Get) \
640 : V(Map_Has) \
641 : V(Map_New) \
642 : V(Map_Set) \
643 : V(Message_GetEndColumn) \
644 : V(Message_GetLineNumber) \
645 : V(Message_GetSourceLine) \
646 : V(Message_GetStartColumn) \
647 : V(Module_Evaluate) \
648 : V(Module_InstantiateModule) \
649 : V(NumberObject_New) \
650 : V(NumberObject_NumberValue) \
651 : V(Object_CallAsConstructor) \
652 : V(Object_CallAsFunction) \
653 : V(Object_CreateDataProperty) \
654 : V(Object_DefineOwnProperty) \
655 : V(Object_DefineProperty) \
656 : V(Object_Delete) \
657 : V(Object_DeleteProperty) \
658 : V(Object_ForceSet) \
659 : V(Object_Get) \
660 : V(Object_GetOwnPropertyDescriptor) \
661 : V(Object_GetOwnPropertyNames) \
662 : V(Object_GetPropertyAttributes) \
663 : V(Object_GetPropertyNames) \
664 : V(Object_GetRealNamedProperty) \
665 : V(Object_GetRealNamedPropertyAttributes) \
666 : V(Object_GetRealNamedPropertyAttributesInPrototypeChain) \
667 : V(Object_GetRealNamedPropertyInPrototypeChain) \
668 : V(Object_Has) \
669 : V(Object_HasOwnProperty) \
670 : V(Object_HasRealIndexedProperty) \
671 : V(Object_HasRealNamedCallbackProperty) \
672 : V(Object_HasRealNamedProperty) \
673 : V(Object_New) \
674 : V(Object_ObjectProtoToString) \
675 : V(Object_Set) \
676 : V(Object_SetAccessor) \
677 : V(Object_SetIntegrityLevel) \
678 : V(Object_SetPrivate) \
679 : V(Object_SetPrototype) \
680 : V(ObjectTemplate_New) \
681 : V(ObjectTemplate_NewInstance) \
682 : V(Object_ToArrayIndex) \
683 : V(Object_ToDetailString) \
684 : V(Object_ToInt32) \
685 : V(Object_ToInteger) \
686 : V(Object_ToNumber) \
687 : V(Object_ToObject) \
688 : V(Object_ToString) \
689 : V(Object_ToUint32) \
690 : V(Persistent_New) \
691 : V(Private_New) \
692 : V(Promise_Catch) \
693 : V(Promise_Chain) \
694 : V(Promise_HasRejectHandler) \
695 : V(Promise_Resolver_New) \
696 : V(Promise_Resolver_Resolve) \
697 : V(Promise_Resolver_Reject) \
698 : V(Promise_Result) \
699 : V(Promise_Status) \
700 : V(Promise_Then) \
701 : V(Proxy_New) \
702 : V(RangeError_New) \
703 : V(ReferenceError_New) \
704 : V(RegExp_New) \
705 : V(ScriptCompiler_Compile) \
706 : V(ScriptCompiler_CompileFunctionInContext) \
707 : V(ScriptCompiler_CompileUnbound) \
708 : V(Script_Run) \
709 : V(Set_Add) \
710 : V(Set_AsArray) \
711 : V(Set_Clear) \
712 : V(Set_Delete) \
713 : V(Set_Has) \
714 : V(Set_New) \
715 : V(SharedArrayBuffer_New) \
716 : V(String_Concat) \
717 : V(String_NewExternalOneByte) \
718 : V(String_NewExternalTwoByte) \
719 : V(String_NewFromOneByte) \
720 : V(String_NewFromTwoByte) \
721 : V(String_NewFromUtf8) \
722 : V(StringObject_New) \
723 : V(StringObject_StringValue) \
724 : V(String_Write) \
725 : V(String_WriteUtf8) \
726 : V(Symbol_New) \
727 : V(SymbolObject_New) \
728 : V(SymbolObject_SymbolValue) \
729 : V(SyntaxError_New) \
730 : V(TryCatch_StackTrace) \
731 : V(TypeError_New) \
732 : V(Uint16Array_New) \
733 : V(Uint32Array_New) \
734 : V(Uint8Array_New) \
735 : V(Uint8ClampedArray_New) \
736 : V(UnboundScript_GetId) \
737 : V(UnboundScript_GetLineNumber) \
738 : V(UnboundScript_GetName) \
739 : V(UnboundScript_GetSourceMappingURL) \
740 : V(UnboundScript_GetSourceURL) \
741 : V(Value_InstanceOf) \
742 : V(Value_IntegerValue) \
743 : V(Value_Int32Value) \
744 : V(Value_NumberValue) \
745 : V(Value_TypeOf) \
746 : V(Value_Uint32Value) \
747 : V(ValueDeserializer_ReadHeader) \
748 : V(ValueDeserializer_ReadValue) \
749 : V(ValueSerializer_WriteValue)
750 :
751 : #define FOR_EACH_MANUAL_COUNTER(V) \
752 : V(AccessorGetterCallback) \
753 : V(AccessorNameGetterCallback) \
754 : V(AccessorNameSetterCallback) \
755 : V(ArrayLengthGetter) \
756 : V(ArrayLengthSetter) \
757 : V(BoundFunctionNameGetter) \
758 : V(BoundFunctionLengthGetter) \
759 : V(CompileCodeLazy) \
760 : V(CompileDeserialize) \
761 : V(CompileEval) \
762 : V(CompileFullCode) \
763 : V(CompileAnalyse) \
764 : V(CompileBackgroundIgnition) \
765 : V(CompileFunction) \
766 : V(CompileGetFromOptimizedCodeMap) \
767 : V(CompileIgnition) \
768 : V(CompileIgnitionFinalization) \
769 : V(CompileInnerFunction) \
770 : V(CompileRenumber) \
771 : V(CompileRewriteReturnResult) \
772 : V(CompileScopeAnalysis) \
773 : V(CompileScript) \
774 : V(CompileSerialize) \
775 : V(CompileWaitForDispatcher) \
776 : V(DeoptimizeCode) \
777 : V(FunctionCallback) \
778 : V(FunctionPrototypeGetter) \
779 : V(FunctionPrototypeSetter) \
780 : V(GC_Custom_AllAvailableGarbage) \
781 : V(GC_Custom_IncrementalMarkingObserver) \
782 : V(GC_Custom_SlowAllocateRaw) \
783 : V(GCEpilogueCallback) \
784 : V(GCPrologueCallback) \
785 : V(GenericNamedPropertyDefinerCallback) \
786 : V(GenericNamedPropertyDeleterCallback) \
787 : V(GenericNamedPropertyDescriptorCallback) \
788 : V(GenericNamedPropertyQueryCallback) \
789 : V(GenericNamedPropertySetterCallback) \
790 : V(GetMoreDataCallback) \
791 : V(IndexedPropertyDefinerCallback) \
792 : V(IndexedPropertyDeleterCallback) \
793 : V(IndexedPropertyDescriptorCallback) \
794 : V(IndexedPropertyGetterCallback) \
795 : V(IndexedPropertyQueryCallback) \
796 : V(IndexedPropertySetterCallback) \
797 : V(InvokeApiInterruptCallbacks) \
798 : V(InvokeFunctionCallback) \
799 : V(JS_Execution) \
800 : V(Map_SetPrototype) \
801 : V(Map_TransitionToAccessorProperty) \
802 : V(Map_TransitionToDataProperty) \
803 : V(Object_DeleteProperty) \
804 : V(OptimizeCode) \
805 : V(ParseArrowFunctionLiteral) \
806 : V(ParseBackgroundArrowFunctionLiteral) \
807 : V(ParseBackgroundFunctionLiteral) \
808 : V(ParseEval) \
809 : V(ParseFunction) \
810 : V(ParseFunctionLiteral) \
811 : V(ParseProgram) \
812 : V(PreParseArrowFunctionLiteral) \
813 : V(PreParseBackgroundArrowFunctionLiteral) \
814 : V(PreParseBackgroundNoVariableResolution) \
815 : V(PreParseBackgroundWithVariableResolution) \
816 : V(PreParseNoVariableResolution) \
817 : V(PreParseWithVariableResolution) \
818 : V(PropertyCallback) \
819 : V(PrototypeMap_TransitionToAccessorProperty) \
820 : V(PrototypeMap_TransitionToDataProperty) \
821 : V(PrototypeObject_DeleteProperty) \
822 : V(RecompileConcurrent) \
823 : V(RecompileSynchronous) \
824 : V(ReconfigureToDataProperty) \
825 : V(StringLengthGetter) \
826 : V(TestCounter1) \
827 : V(TestCounter2) \
828 : V(TestCounter3)
829 :
830 : #define FOR_EACH_HANDLER_COUNTER(V) \
831 : V(KeyedLoadIC_LoadIndexedStringStub) \
832 : V(KeyedLoadIC_LoadIndexedInterceptorStub) \
833 : V(KeyedLoadIC_KeyedLoadSloppyArgumentsStub) \
834 : V(KeyedLoadIC_LoadElementDH) \
835 : V(KeyedLoadIC_SlowStub) \
836 : V(KeyedStoreIC_ElementsTransitionAndStoreStub) \
837 : V(KeyedStoreIC_KeyedStoreSloppyArgumentsStub) \
838 : V(KeyedStoreIC_SlowStub) \
839 : V(KeyedStoreIC_StoreFastElementStub) \
840 : V(KeyedStoreIC_StoreElementStub) \
841 : V(LoadIC_FunctionPrototypeStub) \
842 : V(LoadIC_HandlerCacheHit_Accessor) \
843 : V(LoadIC_LoadAccessorDH) \
844 : V(LoadIC_LoadAccessorFromPrototypeDH) \
845 : V(LoadIC_LoadApiGetterDH) \
846 : V(LoadIC_LoadApiGetterFromPrototypeDH) \
847 : V(LoadIC_LoadCallback) \
848 : V(LoadIC_LoadConstantDH) \
849 : V(LoadIC_LoadConstantFromPrototypeDH) \
850 : V(LoadIC_LoadFieldDH) \
851 : V(LoadIC_LoadFieldFromPrototypeDH) \
852 : V(LoadIC_LoadGlobalDH) \
853 : V(LoadIC_LoadGlobalFromPrototypeDH) \
854 : V(LoadIC_LoadIntegerIndexedExoticDH) \
855 : V(LoadIC_LoadInterceptorDH) \
856 : V(LoadIC_LoadNonMaskingInterceptorDH) \
857 : V(LoadIC_LoadInterceptorFromPrototypeDH) \
858 : V(LoadIC_LoadNonexistentDH) \
859 : V(LoadIC_LoadNormalDH) \
860 : V(LoadIC_LoadNormalFromPrototypeDH) \
861 : V(LoadIC_LoadScriptContextFieldStub) \
862 : V(LoadIC_LoadViaGetter) \
863 : V(LoadIC_NonReceiver) \
864 : V(LoadIC_Premonomorphic) \
865 : V(LoadIC_SlowStub) \
866 : V(LoadIC_StringLength) \
867 : V(StoreIC_HandlerCacheHit_Accessor) \
868 : V(StoreIC_NonReceiver) \
869 : V(StoreIC_Premonomorphic) \
870 : V(StoreIC_SlowStub) \
871 : V(StoreIC_StoreCallback) \
872 : V(StoreIC_StoreFieldDH) \
873 : V(StoreIC_StoreGlobalDH) \
874 : V(StoreIC_StoreGlobalTransitionDH) \
875 : V(StoreIC_StoreInterceptorStub) \
876 : V(StoreIC_StoreNormalDH) \
877 : V(StoreIC_StoreScriptContextFieldStub) \
878 : V(StoreIC_StoreTransitionDH) \
879 : V(StoreIC_StoreViaSetter)
880 :
881 : class RuntimeCallStats final : public ZoneObject {
882 : public:
883 : typedef RuntimeCallCounter RuntimeCallStats::*CounterId;
884 : V8_EXPORT_PRIVATE RuntimeCallStats();
885 :
886 : #define CALL_RUNTIME_COUNTER(name) RuntimeCallCounter GC_##name;
887 : FOR_EACH_GC_COUNTER(CALL_RUNTIME_COUNTER)
888 : #undef CALL_RUNTIME_COUNTER
889 : #define CALL_RUNTIME_COUNTER(name) RuntimeCallCounter name;
890 : FOR_EACH_MANUAL_COUNTER(CALL_RUNTIME_COUNTER)
891 : #undef CALL_RUNTIME_COUNTER
892 : #define CALL_RUNTIME_COUNTER(name, nargs, ressize) \
893 : RuntimeCallCounter Runtime_##name;
894 : FOR_EACH_INTRINSIC(CALL_RUNTIME_COUNTER)
895 : #undef CALL_RUNTIME_COUNTER
896 : #define CALL_BUILTIN_COUNTER(name) RuntimeCallCounter Builtin_##name;
897 : BUILTIN_LIST_C(CALL_BUILTIN_COUNTER)
898 : #undef CALL_BUILTIN_COUNTER
899 : #define CALL_BUILTIN_COUNTER(name) RuntimeCallCounter API_##name;
900 : FOR_EACH_API_COUNTER(CALL_BUILTIN_COUNTER)
901 : #undef CALL_BUILTIN_COUNTER
902 : #define CALL_BUILTIN_COUNTER(name) RuntimeCallCounter Handler_##name;
903 : FOR_EACH_HANDLER_COUNTER(CALL_BUILTIN_COUNTER)
904 : #undef CALL_BUILTIN_COUNTER
905 :
906 : static const CounterId counters[];
907 : static const int counters_count;
908 :
909 : // Starting measuring the time for a function. This will establish the
910 : // connection to the parent counter for properly calculating the own times.
911 : V8_EXPORT_PRIVATE static void Enter(RuntimeCallStats* stats,
912 : RuntimeCallTimer* timer,
913 : CounterId counter_id);
914 :
915 : // Leave a scope for a measured runtime function. This will properly add
916 : // the time delta to the current_counter and subtract the delta from its
917 : // parent.
918 : V8_EXPORT_PRIVATE static void Leave(RuntimeCallStats* stats,
919 : RuntimeCallTimer* timer);
920 :
921 : // Set counter id for the innermost measurement. It can be used to refine
922 : // event kind when a runtime entry counter is too generic.
923 : V8_EXPORT_PRIVATE static void CorrectCurrentCounterId(RuntimeCallStats* stats,
924 : CounterId counter_id);
925 :
926 : V8_EXPORT_PRIVATE void Reset();
927 : // Add all entries from another stats object.
928 : void Add(RuntimeCallStats* other);
929 : V8_EXPORT_PRIVATE void Print(std::ostream& os);
930 : V8_NOINLINE void Dump(v8::tracing::TracedValue* value);
931 :
932 : ThreadId thread_id() const { return thread_id_; }
933 : RuntimeCallTimer* current_timer() { return current_timer_.Value(); }
934 : RuntimeCallCounter* current_counter() { return current_counter_.Value(); }
935 : bool InUse() { return in_use_; }
936 : bool IsCalledOnTheSameThread();
937 :
938 : private:
939 : // Top of a stack of active timers.
940 : base::AtomicValue<RuntimeCallTimer*> current_timer_;
941 : // Active counter object associated with current timer.
942 : base::AtomicValue<RuntimeCallCounter*> current_counter_;
943 : // Used to track nested tracing scopes.
944 : bool in_use_;
945 : ThreadId thread_id_;
946 : };
947 :
948 : #define CHANGE_CURRENT_RUNTIME_COUNTER(runtime_call_stats, counter_name) \
949 : do { \
950 : if (V8_UNLIKELY(FLAG_runtime_stats)) { \
951 : RuntimeCallStats::CorrectCurrentCounterId( \
952 : runtime_call_stats, &RuntimeCallStats::counter_name); \
953 : } \
954 : } while (false)
955 :
956 : #define TRACE_HANDLER_STATS(isolate, counter_name) \
957 : CHANGE_CURRENT_RUNTIME_COUNTER(isolate->counters()->runtime_call_stats(), \
958 : Handler_##counter_name)
959 :
960 : // A RuntimeCallTimerScopes wraps around a RuntimeCallTimer to measure the
961 : // the time of C++ scope.
962 : class RuntimeCallTimerScope {
963 : public:
964 : inline RuntimeCallTimerScope(Isolate* isolate,
965 : RuntimeCallStats::CounterId counter_id);
966 : // This constructor is here just to avoid calling GetIsolate() when the
967 : // stats are disabled and the isolate is not directly available.
968 : inline RuntimeCallTimerScope(HeapObject* heap_object,
969 : RuntimeCallStats::CounterId counter_id);
970 19963745 : inline RuntimeCallTimerScope(RuntimeCallStats* stats,
971 19963745 : RuntimeCallStats::CounterId counter_id) {
972 39927490 : if (V8_LIKELY(!FLAG_runtime_stats || stats == nullptr)) return;
973 0 : stats_ = stats;
974 0 : RuntimeCallStats::Enter(stats_, &timer_, counter_id);
975 : }
976 :
977 : inline ~RuntimeCallTimerScope() {
978 323799473 : if (V8_UNLIKELY(stats_ != nullptr)) {
979 0 : RuntimeCallStats::Leave(stats_, &timer_);
980 : }
981 : }
982 :
983 : private:
984 : RuntimeCallStats* stats_ = nullptr;
985 : RuntimeCallTimer timer_;
986 :
987 : DISALLOW_COPY_AND_ASSIGN(RuntimeCallTimerScope);
988 : };
989 :
990 : #define HISTOGRAM_RANGE_LIST(HR) \
991 : /* Generic range histograms: HR(name, caption, min, max, num_buckets) */ \
992 : HR(detached_context_age_in_gc, V8.DetachedContextAgeInGC, 0, 20, 21) \
993 : HR(code_cache_reject_reason, V8.CodeCacheRejectReason, 1, 6, 6) \
994 : HR(errors_thrown_per_context, V8.ErrorsThrownPerContext, 0, 200, 20) \
995 : HR(debug_feature_usage, V8.DebugFeatureUsage, 1, 7, 7) \
996 : HR(incremental_marking_reason, V8.GCIncrementalMarkingReason, 0, 21, 22) \
997 : HR(incremental_marking_sum, V8.GCIncrementalMarkingSum, 0, 10000, 101) \
998 : HR(mark_compact_reason, V8.GCMarkCompactReason, 0, 21, 22) \
999 : HR(scavenge_reason, V8.GCScavengeReason, 0, 21, 22) \
1000 : HR(young_generation_handling, V8.GCYoungGenerationHandling, 0, 2, 3) \
1001 : /* Asm/Wasm. */ \
1002 : HR(wasm_functions_per_asm_module, V8.WasmFunctionsPerModule.asm, 1, 100000, \
1003 : 51) \
1004 : HR(wasm_functions_per_wasm_module, V8.WasmFunctionsPerModule.wasm, 1, \
1005 : 100000, 51) \
1006 : HR(array_buffer_big_allocations, V8.ArrayBufferLargeAllocations, 0, 4096, \
1007 : 13) \
1008 : HR(array_buffer_new_size_failures, V8.ArrayBufferNewSizeFailures, 0, 4096, \
1009 : 13) \
1010 : HR(shared_array_allocations, V8.SharedArrayAllocationSizes, 0, 4096, 13) \
1011 : HR(wasm_asm_function_size_bytes, V8.WasmFunctionSizeBytes.asm, 1, GB, 51) \
1012 : HR(wasm_wasm_function_size_bytes, V8.WasmFunctionSizeBytes.wasm, 1, GB, 51) \
1013 : HR(wasm_asm_module_size_bytes, V8.WasmModuleSizeBytes.asm, 1, GB, 51) \
1014 : HR(wasm_wasm_module_size_bytes, V8.WasmModuleSizeBytes.wasm, 1, GB, 51) \
1015 : HR(wasm_asm_min_mem_pages_count, V8.WasmMinMemPagesCount.asm, 1, 2 << 16, \
1016 : 51) \
1017 : HR(wasm_wasm_min_mem_pages_count, V8.WasmMinMemPagesCount.wasm, 1, 2 << 16, \
1018 : 51) \
1019 : HR(wasm_wasm_max_mem_pages_count, V8.WasmMaxMemPagesCount.wasm, 1, 2 << 16, \
1020 : 51) \
1021 : HR(wasm_decode_asm_module_peak_memory_bytes, \
1022 : V8.WasmDecodeModulePeakMemoryBytes.asm, 1, GB, 51) \
1023 : HR(wasm_decode_wasm_module_peak_memory_bytes, \
1024 : V8.WasmDecodeModulePeakMemoryBytes.wasm, 1, GB, 51) \
1025 : HR(asm_wasm_translation_peak_memory_bytes, \
1026 : V8.AsmWasmTranslationPeakMemoryBytes, 1, GB, 51) \
1027 : HR(wasm_compile_function_peak_memory_bytes, \
1028 : V8.WasmCompileFunctionPeakMemoryBytes, 1, GB, 51) \
1029 : HR(asm_module_size_bytes, V8.AsmModuleSizeBytes, 1, GB, 51) \
1030 : HR(asm_wasm_translation_throughput, V8.AsmWasmTranslationThroughput, 1, 100, \
1031 : 20) \
1032 : HR(wasm_lazy_compilation_throughput, V8.WasmLazyCompilationThroughput, 1, \
1033 : 10000, 50)
1034 :
1035 : #define HISTOGRAM_TIMER_LIST(HT) \
1036 : /* Garbage collection timers. */ \
1037 : HT(gc_compactor, V8.GCCompactor, 10000, MILLISECOND) \
1038 : HT(gc_finalize, V8.GCFinalizeMC, 10000, MILLISECOND) \
1039 : HT(gc_finalize_reduce_memory, V8.GCFinalizeMCReduceMemory, 10000, \
1040 : MILLISECOND) \
1041 : HT(gc_scavenger, V8.GCScavenger, 10000, MILLISECOND) \
1042 : HT(gc_context, V8.GCContext, 10000, \
1043 : MILLISECOND) /* GC context cleanup time */ \
1044 : HT(gc_idle_notification, V8.GCIdleNotification, 10000, MILLISECOND) \
1045 : HT(gc_incremental_marking, V8.GCIncrementalMarking, 10000, MILLISECOND) \
1046 : HT(gc_incremental_marking_start, V8.GCIncrementalMarkingStart, 10000, \
1047 : MILLISECOND) \
1048 : HT(gc_incremental_marking_finalize, V8.GCIncrementalMarkingFinalize, 10000, \
1049 : MILLISECOND) \
1050 : HT(gc_low_memory_notification, V8.GCLowMemoryNotification, 10000, \
1051 : MILLISECOND) \
1052 : /* Compilation times. */ \
1053 : HT(compile, V8.CompileMicroSeconds, 1000000, MICROSECOND) \
1054 : HT(compile_eval, V8.CompileEvalMicroSeconds, 1000000, MICROSECOND) \
1055 : /* Serialization as part of compilation (code caching) */ \
1056 : HT(compile_serialize, V8.CompileSerializeMicroSeconds, 100000, MICROSECOND) \
1057 : HT(compile_deserialize, V8.CompileDeserializeMicroSeconds, 1000000, \
1058 : MICROSECOND) \
1059 : /* Total compilation time incl. caching/parsing */ \
1060 : HT(compile_script, V8.CompileScriptMicroSeconds, 1000000, MICROSECOND) \
1061 : /* Total JavaScript execution time (including callbacks and runtime calls */ \
1062 : HT(execute, V8.Execute, 1000000, MICROSECOND) \
1063 : /* Asm/Wasm */ \
1064 : HT(asm_wasm_translation_time, V8.AsmWasmTranslationMicroSeconds, 1000000, \
1065 : MICROSECOND) \
1066 : HT(wasm_lazy_compilation_time, V8.WasmLazyCompilationMicroSeconds, 1000000, \
1067 : MICROSECOND) \
1068 : HT(wasm_execution_time, V8.WasmExecutionTimeMicroSeconds, 10000000, \
1069 : MICROSECOND)
1070 :
1071 : #define TIMED_HISTOGRAM_LIST(HT) \
1072 : HT(wasm_decode_asm_module_time, V8.WasmDecodeModuleMicroSeconds.asm, \
1073 : 1000000, MICROSECOND) \
1074 : HT(wasm_decode_wasm_module_time, V8.WasmDecodeModuleMicroSeconds.wasm, \
1075 : 1000000, MICROSECOND) \
1076 : HT(wasm_decode_asm_function_time, V8.WasmDecodeFunctionMicroSeconds.asm, \
1077 : 1000000, MICROSECOND) \
1078 : HT(wasm_decode_wasm_function_time, V8.WasmDecodeFunctionMicroSeconds.wasm, \
1079 : 1000000, MICROSECOND) \
1080 : HT(wasm_compile_asm_module_time, V8.WasmCompileModuleMicroSeconds.asm, \
1081 : 10000000, MICROSECOND) \
1082 : HT(wasm_compile_wasm_module_time, V8.WasmCompileModuleMicroSeconds.wasm, \
1083 : 10000000, MICROSECOND) \
1084 : HT(wasm_compile_asm_function_time, V8.WasmCompileFunctionMicroSeconds.asm, \
1085 : 1000000, MICROSECOND) \
1086 : HT(wasm_compile_wasm_function_time, V8.WasmCompileFunctionMicroSeconds.wasm, \
1087 : 1000000, MICROSECOND) \
1088 : HT(wasm_instantiate_wasm_module_time, \
1089 : V8.WasmInstantiateModuleMicroSeconds.wasm, 10000000, MICROSECOND) \
1090 : HT(wasm_instantiate_asm_module_time, \
1091 : V8.WasmInstantiateModuleMicroSeconds.asm, 10000000, MICROSECOND)
1092 :
1093 : #define AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) \
1094 : AHT(compile_lazy, V8.CompileLazyMicroSeconds)
1095 :
1096 : #define HISTOGRAM_PERCENTAGE_LIST(HP) \
1097 : /* Heap fragmentation. */ \
1098 : HP(external_fragmentation_total, V8.MemoryExternalFragmentationTotal) \
1099 : HP(external_fragmentation_old_space, V8.MemoryExternalFragmentationOldSpace) \
1100 : HP(external_fragmentation_code_space, \
1101 : V8.MemoryExternalFragmentationCodeSpace) \
1102 : HP(external_fragmentation_map_space, V8.MemoryExternalFragmentationMapSpace) \
1103 : HP(external_fragmentation_lo_space, V8.MemoryExternalFragmentationLoSpace)
1104 :
1105 : // Note: These use Histogram with options (min=1000, max=500000, buckets=50).
1106 : #define HISTOGRAM_LEGACY_MEMORY_LIST(HM) \
1107 : HM(heap_sample_total_committed, V8.MemoryHeapSampleTotalCommitted) \
1108 : HM(heap_sample_total_used, V8.MemoryHeapSampleTotalUsed) \
1109 : HM(heap_sample_map_space_committed, V8.MemoryHeapSampleMapSpaceCommitted) \
1110 : HM(heap_sample_code_space_committed, V8.MemoryHeapSampleCodeSpaceCommitted) \
1111 : HM(heap_sample_maximum_committed, V8.MemoryHeapSampleMaximumCommitted)
1112 :
1113 : // Note: These define both Histogram and AggregatedMemoryHistogram<Histogram>
1114 : // histograms with options (min=4000, max=2000000, buckets=100).
1115 : #define HISTOGRAM_MEMORY_LIST(HM) \
1116 : HM(memory_heap_committed, V8.MemoryHeapCommitted) \
1117 : HM(memory_heap_used, V8.MemoryHeapUsed)
1118 :
1119 : // WARNING: STATS_COUNTER_LIST_* is a very large macro that is causing MSVC
1120 : // Intellisense to crash. It was broken into two macros (each of length 40
1121 : // lines) rather than one macro (of length about 80 lines) to work around
1122 : // this problem. Please avoid using recursive macros of this length when
1123 : // possible.
1124 : #define STATS_COUNTER_LIST_1(SC) \
1125 : /* Global Handle Count*/ \
1126 : SC(global_handles, V8.GlobalHandles) \
1127 : /* OS Memory allocated */ \
1128 : SC(memory_allocated, V8.OsMemoryAllocated) \
1129 : SC(maps_normalized, V8.MapsNormalized) \
1130 : SC(maps_created, V8.MapsCreated) \
1131 : SC(elements_transitions, V8.ObjectElementsTransitions) \
1132 : SC(props_to_dictionary, V8.ObjectPropertiesToDictionary) \
1133 : SC(elements_to_dictionary, V8.ObjectElementsToDictionary) \
1134 : SC(alive_after_last_gc, V8.AliveAfterLastGC) \
1135 : SC(objs_since_last_young, V8.ObjsSinceLastYoung) \
1136 : SC(objs_since_last_full, V8.ObjsSinceLastFull) \
1137 : SC(string_table_capacity, V8.StringTableCapacity) \
1138 : SC(number_of_symbols, V8.NumberOfSymbols) \
1139 : SC(script_wrappers, V8.ScriptWrappers) \
1140 : SC(inlined_copied_elements, V8.InlinedCopiedElements) \
1141 : SC(arguments_adaptors, V8.ArgumentsAdaptors) \
1142 : SC(compilation_cache_hits, V8.CompilationCacheHits) \
1143 : SC(compilation_cache_misses, V8.CompilationCacheMisses) \
1144 : /* Amount of evaled source code. */ \
1145 : SC(total_eval_size, V8.TotalEvalSize) \
1146 : /* Amount of loaded source code. */ \
1147 : SC(total_load_size, V8.TotalLoadSize) \
1148 : /* Amount of parsed source code. */ \
1149 : SC(total_parse_size, V8.TotalParseSize) \
1150 : /* Amount of source code skipped over using preparsing. */ \
1151 : SC(total_preparse_skipped, V8.TotalPreparseSkipped) \
1152 : /* Amount of compiled source code. */ \
1153 : SC(total_compile_size, V8.TotalCompileSize) \
1154 : /* Amount of source code compiled with the full codegen. */ \
1155 : SC(total_full_codegen_source_size, V8.TotalFullCodegenSourceSize) \
1156 : /* Number of contexts created from scratch. */ \
1157 : SC(contexts_created_from_scratch, V8.ContextsCreatedFromScratch) \
1158 : /* Number of contexts created by partial snapshot. */ \
1159 : SC(contexts_created_by_snapshot, V8.ContextsCreatedBySnapshot) \
1160 : /* Number of code objects found from pc. */ \
1161 : SC(pc_to_code, V8.PcToCode) \
1162 : SC(pc_to_code_cached, V8.PcToCodeCached) \
1163 : /* The store-buffer implementation of the write barrier. */ \
1164 : SC(store_buffer_overflows, V8.StoreBufferOverflows)
1165 :
1166 : #define STATS_COUNTER_LIST_2(SC) \
1167 : /* Number of code stubs. */ \
1168 : SC(code_stubs, V8.CodeStubs) \
1169 : /* Amount of stub code. */ \
1170 : SC(total_stubs_code_size, V8.TotalStubsCodeSize) \
1171 : /* Amount of (JS) compiled code. */ \
1172 : SC(total_compiled_code_size, V8.TotalCompiledCodeSize) \
1173 : SC(gc_compactor_caused_by_request, V8.GCCompactorCausedByRequest) \
1174 : SC(gc_compactor_caused_by_promoted_data, V8.GCCompactorCausedByPromotedData) \
1175 : SC(gc_compactor_caused_by_oldspace_exhaustion, \
1176 : V8.GCCompactorCausedByOldspaceExhaustion) \
1177 : SC(gc_last_resort_from_js, V8.GCLastResortFromJS) \
1178 : SC(gc_last_resort_from_handles, V8.GCLastResortFromHandles) \
1179 : SC(ic_keyed_load_generic_smi, V8.ICKeyedLoadGenericSmi) \
1180 : SC(ic_keyed_load_generic_symbol, V8.ICKeyedLoadGenericSymbol) \
1181 : SC(ic_keyed_load_generic_slow, V8.ICKeyedLoadGenericSlow) \
1182 : SC(ic_named_load_global_stub, V8.ICNamedLoadGlobalStub) \
1183 : SC(ic_store_normal_miss, V8.ICStoreNormalMiss) \
1184 : SC(ic_store_normal_hit, V8.ICStoreNormalHit) \
1185 : SC(ic_binary_op_miss, V8.ICBinaryOpMiss) \
1186 : SC(ic_compare_miss, V8.ICCompareMiss) \
1187 : SC(ic_call_miss, V8.ICCallMiss) \
1188 : SC(ic_keyed_call_miss, V8.ICKeyedCallMiss) \
1189 : SC(ic_store_miss, V8.ICStoreMiss) \
1190 : SC(ic_keyed_store_miss, V8.ICKeyedStoreMiss) \
1191 : SC(cow_arrays_converted, V8.COWArraysConverted) \
1192 : SC(constructed_objects, V8.ConstructedObjects) \
1193 : SC(constructed_objects_runtime, V8.ConstructedObjectsRuntime) \
1194 : SC(negative_lookups, V8.NegativeLookups) \
1195 : SC(negative_lookups_miss, V8.NegativeLookupsMiss) \
1196 : SC(megamorphic_stub_cache_probes, V8.MegamorphicStubCacheProbes) \
1197 : SC(megamorphic_stub_cache_misses, V8.MegamorphicStubCacheMisses) \
1198 : SC(megamorphic_stub_cache_updates, V8.MegamorphicStubCacheUpdates) \
1199 : SC(enum_cache_hits, V8.EnumCacheHits) \
1200 : SC(enum_cache_misses, V8.EnumCacheMisses) \
1201 : SC(fast_new_closure_total, V8.FastNewClosureTotal) \
1202 : SC(string_add_runtime, V8.StringAddRuntime) \
1203 : SC(string_add_native, V8.StringAddNative) \
1204 : SC(string_add_runtime_ext_to_one_byte, V8.StringAddRuntimeExtToOneByte) \
1205 : SC(sub_string_runtime, V8.SubStringRuntime) \
1206 : SC(sub_string_native, V8.SubStringNative) \
1207 : SC(string_compare_native, V8.StringCompareNative) \
1208 : SC(string_compare_runtime, V8.StringCompareRuntime) \
1209 : SC(regexp_entry_runtime, V8.RegExpEntryRuntime) \
1210 : SC(regexp_entry_native, V8.RegExpEntryNative) \
1211 : SC(number_to_string_native, V8.NumberToStringNative) \
1212 : SC(number_to_string_runtime, V8.NumberToStringRuntime) \
1213 : SC(math_exp_runtime, V8.MathExpRuntime) \
1214 : SC(math_log_runtime, V8.MathLogRuntime) \
1215 : SC(math_pow_runtime, V8.MathPowRuntime) \
1216 : SC(stack_interrupts, V8.StackInterrupts) \
1217 : SC(runtime_profiler_ticks, V8.RuntimeProfilerTicks) \
1218 : SC(runtime_calls, V8.RuntimeCalls) \
1219 : SC(bounds_checks_eliminated, V8.BoundsChecksEliminated) \
1220 : SC(bounds_checks_hoisted, V8.BoundsChecksHoisted) \
1221 : SC(soft_deopts_requested, V8.SoftDeoptsRequested) \
1222 : SC(soft_deopts_inserted, V8.SoftDeoptsInserted) \
1223 : SC(soft_deopts_executed, V8.SoftDeoptsExecuted) \
1224 : /* Number of write barriers in generated code. */ \
1225 : SC(write_barriers_dynamic, V8.WriteBarriersDynamic) \
1226 : SC(write_barriers_static, V8.WriteBarriersStatic) \
1227 : SC(new_space_bytes_available, V8.MemoryNewSpaceBytesAvailable) \
1228 : SC(new_space_bytes_committed, V8.MemoryNewSpaceBytesCommitted) \
1229 : SC(new_space_bytes_used, V8.MemoryNewSpaceBytesUsed) \
1230 : SC(old_space_bytes_available, V8.MemoryOldSpaceBytesAvailable) \
1231 : SC(old_space_bytes_committed, V8.MemoryOldSpaceBytesCommitted) \
1232 : SC(old_space_bytes_used, V8.MemoryOldSpaceBytesUsed) \
1233 : SC(code_space_bytes_available, V8.MemoryCodeSpaceBytesAvailable) \
1234 : SC(code_space_bytes_committed, V8.MemoryCodeSpaceBytesCommitted) \
1235 : SC(code_space_bytes_used, V8.MemoryCodeSpaceBytesUsed) \
1236 : SC(map_space_bytes_available, V8.MemoryMapSpaceBytesAvailable) \
1237 : SC(map_space_bytes_committed, V8.MemoryMapSpaceBytesCommitted) \
1238 : SC(map_space_bytes_used, V8.MemoryMapSpaceBytesUsed) \
1239 : SC(lo_space_bytes_available, V8.MemoryLoSpaceBytesAvailable) \
1240 : SC(lo_space_bytes_committed, V8.MemoryLoSpaceBytesCommitted) \
1241 : SC(lo_space_bytes_used, V8.MemoryLoSpaceBytesUsed) \
1242 : /* Total code size (including metadata) of baseline code or bytecode. */ \
1243 : SC(total_baseline_code_size, V8.TotalBaselineCodeSize) \
1244 : /* Total count of functions compiled using the baseline compiler. */ \
1245 : SC(total_baseline_compile_count, V8.TotalBaselineCompileCount)
1246 :
1247 : #define STATS_COUNTER_TS_LIST(SC) \
1248 : SC(wasm_generated_code_size, V8.WasmGeneratedCodeBytes) \
1249 : SC(wasm_reloc_size, V8.WasmRelocBytes) \
1250 : SC(wasm_lazily_compiled_functions, V8.WasmLazilyCompiledFunctions)
1251 :
1252 : // This file contains all the v8 counters that are in use.
1253 106730 : class Counters : public std::enable_shared_from_this<Counters> {
1254 : public:
1255 : explicit Counters(Isolate* isolate);
1256 :
1257 : // Register an application-defined function for recording
1258 : // subsequent counter statistics. Note: Must be called on the main
1259 : // thread.
1260 : void ResetCounterFunction(CounterLookupCallback f);
1261 :
1262 : // Register an application-defined function to create histograms for
1263 : // recording subsequent histogram samples. Note: Must be called on
1264 : // the main thread.
1265 : void ResetCreateHistogramFunction(CreateHistogramCallback f);
1266 :
1267 : // Register an application-defined function to add a sample
1268 : // to a histogram. Will be used in all subsequent sample additions.
1269 : // Note: Must be called on the main thread.
1270 : void SetAddHistogramSampleFunction(AddHistogramSampleCallback f) {
1271 : stats_table_.SetAddHistogramSampleFunction(f);
1272 : }
1273 :
1274 : #define HR(name, caption, min, max, num_buckets) \
1275 : Histogram* name() { return &name##_; }
1276 : HISTOGRAM_RANGE_LIST(HR)
1277 : #undef HR
1278 :
1279 : #define HT(name, caption, max, res) \
1280 : HistogramTimer* name() { return &name##_; }
1281 : HISTOGRAM_TIMER_LIST(HT)
1282 : #undef HT
1283 :
1284 : #define HT(name, caption, max, res) \
1285 : TimedHistogram* name() { return &name##_; }
1286 : TIMED_HISTOGRAM_LIST(HT)
1287 : #undef HT
1288 :
1289 : #define AHT(name, caption) \
1290 : AggregatableHistogramTimer* name() { return &name##_; }
1291 : AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT)
1292 : #undef AHT
1293 :
1294 : #define HP(name, caption) \
1295 : Histogram* name() { return &name##_; }
1296 : HISTOGRAM_PERCENTAGE_LIST(HP)
1297 : #undef HP
1298 :
1299 : #define HM(name, caption) \
1300 : Histogram* name() { return &name##_; }
1301 : HISTOGRAM_LEGACY_MEMORY_LIST(HM)
1302 : HISTOGRAM_MEMORY_LIST(HM)
1303 : #undef HM
1304 :
1305 : #define HM(name, caption) \
1306 : AggregatedMemoryHistogram<Histogram>* aggregated_##name() { \
1307 : return &aggregated_##name##_; \
1308 : }
1309 : HISTOGRAM_MEMORY_LIST(HM)
1310 : #undef HM
1311 :
1312 : #define SC(name, caption) \
1313 : StatsCounter* name() { return &name##_; }
1314 : STATS_COUNTER_LIST_1(SC)
1315 8065487 : STATS_COUNTER_LIST_2(SC)
1316 : #undef SC
1317 :
1318 : #define SC(name, caption) \
1319 : StatsCounterThreadSafe* name() { return &name##_; }
1320 : STATS_COUNTER_TS_LIST(SC)
1321 : #undef SC
1322 :
1323 : #define SC(name) \
1324 : StatsCounter* count_of_##name() { return &count_of_##name##_; } \
1325 : StatsCounter* size_of_##name() { return &size_of_##name##_; }
1326 : INSTANCE_TYPE_LIST(SC)
1327 : #undef SC
1328 :
1329 : #define SC(name) \
1330 : StatsCounter* count_of_CODE_TYPE_##name() \
1331 : { return &count_of_CODE_TYPE_##name##_; } \
1332 : StatsCounter* size_of_CODE_TYPE_##name() \
1333 : { return &size_of_CODE_TYPE_##name##_; }
1334 : CODE_KIND_LIST(SC)
1335 : #undef SC
1336 :
1337 : #define SC(name) \
1338 : StatsCounter* count_of_FIXED_ARRAY_##name() \
1339 : { return &count_of_FIXED_ARRAY_##name##_; } \
1340 : StatsCounter* size_of_FIXED_ARRAY_##name() \
1341 : { return &size_of_FIXED_ARRAY_##name##_; }
1342 : FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)
1343 : #undef SC
1344 :
1345 : // clang-format off
1346 : enum Id {
1347 : #define RATE_ID(name, caption, max, res) k_##name,
1348 : HISTOGRAM_TIMER_LIST(RATE_ID)
1349 : TIMED_HISTOGRAM_LIST(RATE_ID)
1350 : #undef RATE_ID
1351 : #define AGGREGATABLE_ID(name, caption) k_##name,
1352 : AGGREGATABLE_HISTOGRAM_TIMER_LIST(AGGREGATABLE_ID)
1353 : #undef AGGREGATABLE_ID
1354 : #define PERCENTAGE_ID(name, caption) k_##name,
1355 : HISTOGRAM_PERCENTAGE_LIST(PERCENTAGE_ID)
1356 : #undef PERCENTAGE_ID
1357 : #define MEMORY_ID(name, caption) k_##name,
1358 : HISTOGRAM_LEGACY_MEMORY_LIST(MEMORY_ID)
1359 : HISTOGRAM_MEMORY_LIST(MEMORY_ID)
1360 : #undef MEMORY_ID
1361 : #define COUNTER_ID(name, caption) k_##name,
1362 : STATS_COUNTER_LIST_1(COUNTER_ID)
1363 : STATS_COUNTER_LIST_2(COUNTER_ID)
1364 : STATS_COUNTER_TS_LIST(COUNTER_ID)
1365 : #undef COUNTER_ID
1366 : #define COUNTER_ID(name) kCountOf##name, kSizeOf##name,
1367 : INSTANCE_TYPE_LIST(COUNTER_ID)
1368 : #undef COUNTER_ID
1369 : #define COUNTER_ID(name) kCountOfCODE_TYPE_##name, \
1370 : kSizeOfCODE_TYPE_##name,
1371 : CODE_KIND_LIST(COUNTER_ID)
1372 : #undef COUNTER_ID
1373 : #define COUNTER_ID(name) kCountOfFIXED_ARRAY__##name, \
1374 : kSizeOfFIXED_ARRAY__##name,
1375 : FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(COUNTER_ID)
1376 : #undef COUNTER_ID
1377 : stats_counter_count
1378 : };
1379 : // clang-format on
1380 :
1381 0 : RuntimeCallStats* runtime_call_stats() { return &runtime_call_stats_; }
1382 :
1383 : private:
1384 : friend class StatsTable;
1385 : friend class StatsCounterBase;
1386 : friend class Histogram;
1387 : friend class HistogramTimer;
1388 :
1389 : Isolate* isolate_;
1390 : StatsTable stats_table_;
1391 :
1392 : int* FindLocation(const char* name) {
1393 1155978 : return stats_table_.FindLocation(name);
1394 : }
1395 :
1396 : void* CreateHistogram(const char* name, int min, int max, size_t buckets) {
1397 350 : return stats_table_.CreateHistogram(name, min, max, buckets);
1398 : }
1399 :
1400 : void AddHistogramSample(void* histogram, int sample) {
1401 0 : stats_table_.AddHistogramSample(histogram, sample);
1402 : }
1403 :
1404 : Isolate* isolate() { return isolate_; }
1405 :
1406 : #define HR(name, caption, min, max, num_buckets) Histogram name##_;
1407 : HISTOGRAM_RANGE_LIST(HR)
1408 : #undef HR
1409 :
1410 : #define HT(name, caption, max, res) HistogramTimer name##_;
1411 : HISTOGRAM_TIMER_LIST(HT)
1412 : #undef HT
1413 :
1414 : #define HT(name, caption, max, res) TimedHistogram name##_;
1415 : TIMED_HISTOGRAM_LIST(HT)
1416 : #undef HT
1417 :
1418 : #define AHT(name, caption) \
1419 : AggregatableHistogramTimer name##_;
1420 : AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT)
1421 : #undef AHT
1422 :
1423 : #define HP(name, caption) \
1424 : Histogram name##_;
1425 : HISTOGRAM_PERCENTAGE_LIST(HP)
1426 : #undef HP
1427 :
1428 : #define HM(name, caption) \
1429 : Histogram name##_;
1430 : HISTOGRAM_LEGACY_MEMORY_LIST(HM)
1431 : HISTOGRAM_MEMORY_LIST(HM)
1432 : #undef HM
1433 :
1434 : #define HM(name, caption) \
1435 : AggregatedMemoryHistogram<Histogram> aggregated_##name##_;
1436 : HISTOGRAM_MEMORY_LIST(HM)
1437 : #undef HM
1438 :
1439 : #define SC(name, caption) \
1440 : StatsCounter name##_;
1441 : STATS_COUNTER_LIST_1(SC)
1442 : STATS_COUNTER_LIST_2(SC)
1443 : #undef SC
1444 :
1445 : #define SC(name, caption) StatsCounterThreadSafe name##_;
1446 : STATS_COUNTER_TS_LIST(SC)
1447 : #undef SC
1448 :
1449 : #define SC(name) \
1450 : StatsCounter size_of_##name##_; \
1451 : StatsCounter count_of_##name##_;
1452 : INSTANCE_TYPE_LIST(SC)
1453 : #undef SC
1454 :
1455 : #define SC(name) \
1456 : StatsCounter size_of_CODE_TYPE_##name##_; \
1457 : StatsCounter count_of_CODE_TYPE_##name##_;
1458 : CODE_KIND_LIST(SC)
1459 : #undef SC
1460 :
1461 : #define SC(name) \
1462 : StatsCounter size_of_FIXED_ARRAY_##name##_; \
1463 : StatsCounter count_of_FIXED_ARRAY_##name##_;
1464 : FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)
1465 : #undef SC
1466 :
1467 : RuntimeCallStats runtime_call_stats_;
1468 :
1469 : DISALLOW_IMPLICIT_CONSTRUCTORS(Counters);
1470 : };
1471 :
1472 : void HistogramTimer::Start() {
1473 2030746 : TimedHistogram::Start(&timer_, counters()->isolate());
1474 : }
1475 :
1476 : void HistogramTimer::Stop() {
1477 2030751 : TimedHistogram::Stop(&timer_, counters()->isolate());
1478 : }
1479 :
1480 303835518 : RuntimeCallTimerScope::RuntimeCallTimerScope(
1481 303835518 : Isolate* isolate, RuntimeCallStats::CounterId counter_id) {
1482 607671036 : if (V8_LIKELY(!FLAG_runtime_stats)) return;
1483 0 : stats_ = isolate->counters()->runtime_call_stats();
1484 0 : RuntimeCallStats::Enter(stats_, &timer_, counter_id);
1485 : }
1486 :
1487 : } // namespace internal
1488 : } // namespace v8
1489 :
1490 : #endif // V8_COUNTERS_H_
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