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/optional.h"
12 : #include "src/base/platform/elapsed-timer.h"
13 : #include "src/base/platform/time.h"
14 : #include "src/globals.h"
15 : #include "src/heap-symbols.h"
16 : #include "src/isolate.h"
17 : #include "src/objects.h"
18 : #include "src/runtime/runtime.h"
19 : #include "src/tracing/trace-event.h"
20 : #include "src/tracing/traced-value.h"
21 : #include "src/tracing/tracing-category-observer.h"
22 :
23 : namespace v8 {
24 : namespace internal {
25 :
26 : // This struct contains a set of flags that can be modified from multiple
27 : // threads at runtime unlike the normal FLAG_-like flags which are not modified
28 : // after V8 instance is initialized.
29 :
30 : struct TracingFlags {
31 : static V8_EXPORT_PRIVATE std::atomic_uint runtime_stats;
32 : static V8_EXPORT_PRIVATE std::atomic_uint gc_stats;
33 : static V8_EXPORT_PRIVATE std::atomic_uint ic_stats;
34 :
35 : static bool is_runtime_stats_enabled() {
36 195927411 : return runtime_stats.load(std::memory_order_relaxed) != 0;
37 : }
38 :
39 : static bool is_gc_stats_enabled() {
40 135489 : return gc_stats.load(std::memory_order_relaxed) != 0;
41 : }
42 :
43 : static bool is_ic_stats_enabled() {
44 : return ic_stats.load(std::memory_order_relaxed) != 0;
45 : }
46 : };
47 :
48 : // StatsCounters is an interface for plugging into external
49 : // counters for monitoring. Counters can be looked up and
50 : // manipulated by name.
51 :
52 : class Counters;
53 :
54 : class StatsTable {
55 : public:
56 : // Register an application-defined function for recording
57 : // subsequent counter statistics.
58 : void SetCounterFunction(CounterLookupCallback f);
59 :
60 : // Register an application-defined function to create histograms for
61 : // recording subsequent histogram samples.
62 : void SetCreateHistogramFunction(CreateHistogramCallback f) {
63 8 : create_histogram_function_ = f;
64 : }
65 :
66 : // Register an application-defined function to add a sample
67 : // to a histogram created with CreateHistogram function.
68 : void SetAddHistogramSampleFunction(AddHistogramSampleCallback f) {
69 8 : add_histogram_sample_function_ = f;
70 : }
71 :
72 : bool HasCounterFunction() const { return lookup_function_ != nullptr; }
73 :
74 : // Lookup the location of a counter by name. If the lookup
75 : // is successful, returns a non-nullptr pointer for writing the
76 : // value of the counter. Each thread calling this function
77 : // may receive a different location to store it's counter.
78 : // The return value must not be cached and re-used across
79 : // threads, although a single thread is free to cache it.
80 : int* FindLocation(const char* name) {
81 1151715 : if (!lookup_function_) return nullptr;
82 0 : return lookup_function_(name);
83 : }
84 :
85 : // Create a histogram by name. If the create is successful,
86 : // returns a non-nullptr pointer for use with AddHistogramSample
87 : // function. min and max define the expected minimum and maximum
88 : // sample values. buckets is the maximum number of buckets
89 : // that the samples will be grouped into.
90 : void* CreateHistogram(const char* name,
91 : int min,
92 : int max,
93 : size_t buckets) {
94 848 : if (!create_histogram_function_) return nullptr;
95 318 : return create_histogram_function_(name, min, max, buckets);
96 : }
97 :
98 : // Add a sample to a histogram created with the CreateHistogram
99 : // function.
100 : void AddHistogramSample(void* histogram, int sample) {
101 10 : if (!add_histogram_sample_function_) return;
102 10 : return add_histogram_sample_function_(histogram, sample);
103 : }
104 :
105 : private:
106 : friend class Counters;
107 :
108 : explicit StatsTable(Counters* counters);
109 :
110 : CounterLookupCallback lookup_function_;
111 : CreateHistogramCallback create_histogram_function_;
112 : AddHistogramSampleCallback add_histogram_sample_function_;
113 :
114 : DISALLOW_COPY_AND_ASSIGN(StatsTable);
115 : };
116 :
117 : // Base class for stats counters.
118 : class StatsCounterBase {
119 : protected:
120 : Counters* counters_;
121 : const char* name_;
122 : int* ptr_;
123 :
124 : StatsCounterBase() = default;
125 : StatsCounterBase(Counters* counters, const char* name)
126 307670 : : counters_(counters), name_(name), ptr_(nullptr) {}
127 :
128 0 : void SetLoc(int* loc, int value) { *loc = value; }
129 0 : void IncrementLoc(int* loc) { (*loc)++; }
130 0 : void IncrementLoc(int* loc, int value) { (*loc) += value; }
131 0 : void DecrementLoc(int* loc) { (*loc)--; }
132 0 : void DecrementLoc(int* loc, int value) { (*loc) -= value; }
133 :
134 : int* FindLocationInStatsTable() const;
135 : };
136 :
137 : // StatsCounters are dynamically created values which can be tracked in
138 : // the StatsTable. They are designed to be lightweight to create and
139 : // easy to use.
140 : //
141 : // Internally, a counter represents a value in a row of a StatsTable.
142 : // The row has a 32bit value for each process/thread in the table and also
143 : // a name (stored in the table metadata). Since the storage location can be
144 : // thread-specific, this class cannot be shared across threads. Note: This
145 : // class is not thread safe.
146 : class StatsCounter : public StatsCounterBase {
147 : public:
148 : // Sets the counter to a specific value.
149 : void Set(int value) {
150 1877587 : if (int* loc = GetPtr()) SetLoc(loc, value);
151 : }
152 :
153 : // Increments the counter.
154 176202551 : void Increment() {
155 176202553 : if (int* loc = GetPtr()) IncrementLoc(loc);
156 176202553 : }
157 :
158 19223942 : void Increment(int value) {
159 19223942 : if (int* loc = GetPtr()) IncrementLoc(loc, value);
160 19223942 : }
161 :
162 : // Decrements the counter.
163 6035823 : void Decrement() {
164 6035823 : if (int* loc = GetPtr()) DecrementLoc(loc);
165 6035823 : }
166 :
167 1521026 : void Decrement(int value) {
168 1521026 : if (int* loc = GetPtr()) DecrementLoc(loc, value);
169 1521026 : }
170 :
171 : // Is this counter enabled?
172 : // Returns false if table is full.
173 0 : bool Enabled() { return GetPtr() != nullptr; }
174 :
175 : // Get the internal pointer to the counter. This is used
176 : // by the code generator to emit code that manipulates a
177 : // given counter without calling the runtime system.
178 : int* GetInternalPointer() {
179 : int* loc = GetPtr();
180 : DCHECK_NOT_NULL(loc);
181 : return loc;
182 : }
183 :
184 : private:
185 : friend class Counters;
186 :
187 : StatsCounter() = default;
188 : StatsCounter(Counters* counters, const char* name)
189 : : StatsCounterBase(counters, name), lookup_done_(false) {}
190 :
191 : // Reset the cached internal pointer.
192 10 : void Reset() { lookup_done_ = false; }
193 :
194 : // Returns the cached address of this counter location.
195 0 : int* GetPtr() {
196 204860929 : if (lookup_done_) return ptr_;
197 1151689 : lookup_done_ = true;
198 1151689 : ptr_ = FindLocationInStatsTable();
199 0 : return ptr_;
200 : }
201 :
202 : bool lookup_done_;
203 : };
204 :
205 : // Thread safe version of StatsCounter.
206 61519 : class StatsCounterThreadSafe : public StatsCounterBase {
207 : public:
208 : void Set(int Value);
209 : void Increment();
210 : void Increment(int value);
211 : void Decrement();
212 : void Decrement(int value);
213 : bool Enabled() { return ptr_ != nullptr; }
214 : int* GetInternalPointer() {
215 : DCHECK_NOT_NULL(ptr_);
216 : return ptr_;
217 : }
218 :
219 : private:
220 : friend class Counters;
221 :
222 : StatsCounterThreadSafe(Counters* counters, const char* name);
223 25 : void Reset() { ptr_ = FindLocationInStatsTable(); }
224 :
225 : base::Mutex mutex_;
226 :
227 : DISALLOW_IMPLICIT_CONSTRUCTORS(StatsCounterThreadSafe);
228 : };
229 :
230 : // A Histogram represents a dynamically created histogram in the
231 : // StatsTable. Note: This class is thread safe.
232 : class Histogram {
233 : public:
234 : // Add a single sample to this histogram.
235 : void AddSample(int sample);
236 :
237 : // Returns true if this histogram is enabled.
238 : bool Enabled() { return histogram_ != nullptr; }
239 :
240 : const char* name() { return name_; }
241 :
242 : int min() const { return min_; }
243 : int max() const { return max_; }
244 : int num_buckets() const { return num_buckets_; }
245 :
246 : // Asserts that |expected_counters| are the same as the Counters this
247 : // Histogram reports to.
248 : void AssertReportsToCounters(Counters* expected_counters) {
249 : DCHECK_EQ(counters_, expected_counters);
250 : }
251 :
252 : protected:
253 : Histogram() = default;
254 : Histogram(const char* name, int min, int max, int num_buckets,
255 : Counters* counters)
256 : : name_(name),
257 : min_(min),
258 : max_(max),
259 : num_buckets_(num_buckets),
260 : histogram_(nullptr),
261 5 : counters_(counters) {
262 : DCHECK(counters_);
263 : }
264 :
265 : Counters* counters() const { return counters_; }
266 :
267 : // Reset the cached internal pointer.
268 848 : void Reset() { histogram_ = CreateHistogram(); }
269 :
270 : private:
271 : friend class Counters;
272 :
273 : void* CreateHistogram() const;
274 :
275 : const char* name_;
276 : int min_;
277 : int max_;
278 : int num_buckets_;
279 : void* histogram_;
280 : Counters* counters_;
281 : };
282 :
283 : enum class HistogramTimerResolution { MILLISECOND, MICROSECOND };
284 :
285 : // A thread safe histogram timer. It also allows distributions of
286 : // nested timed results.
287 : class TimedHistogram : public Histogram {
288 : public:
289 : // Start the timer. Log if isolate non-null.
290 : void Start(base::ElapsedTimer* timer, Isolate* isolate);
291 :
292 : // Stop the timer and record the results. Log if isolate non-null.
293 : void Stop(base::ElapsedTimer* timer, Isolate* isolate);
294 :
295 : // Records a TimeDelta::Max() result. Useful to record percentage of tasks
296 : // that never got to run in a given scenario. Log if isolate non-null.
297 : void RecordAbandon(base::ElapsedTimer* timer, Isolate* isolate);
298 :
299 : protected:
300 : friend class Counters;
301 : HistogramTimerResolution resolution_;
302 :
303 : TimedHistogram() = default;
304 : TimedHistogram(const char* name, int min, int max,
305 : HistogramTimerResolution resolution, int num_buckets,
306 : Counters* counters)
307 : : Histogram(name, min, max, num_buckets, counters),
308 5 : resolution_(resolution) {}
309 : void AddTimeSample();
310 : };
311 :
312 : // Helper class for scoping a TimedHistogram.
313 : class TimedHistogramScope {
314 : public:
315 : explicit TimedHistogramScope(TimedHistogram* histogram,
316 : Isolate* isolate = nullptr)
317 2488782 : : histogram_(histogram), isolate_(isolate) {
318 2488782 : histogram_->Start(&timer_, isolate);
319 : }
320 :
321 2483662 : ~TimedHistogramScope() { histogram_->Stop(&timer_, isolate_); }
322 :
323 : private:
324 : base::ElapsedTimer timer_;
325 : TimedHistogram* histogram_;
326 : Isolate* isolate_;
327 :
328 : DISALLOW_IMPLICIT_CONSTRUCTORS(TimedHistogramScope);
329 : };
330 :
331 : enum class OptionalTimedHistogramScopeMode { TAKE_TIME, DONT_TAKE_TIME };
332 :
333 : // Helper class for scoping a TimedHistogram.
334 : // It will not take time for mode = DONT_TAKE_TIME.
335 : class OptionalTimedHistogramScope {
336 : public:
337 : OptionalTimedHistogramScope(TimedHistogram* histogram, Isolate* isolate,
338 : OptionalTimedHistogramScopeMode mode)
339 94928 : : histogram_(histogram), isolate_(isolate), mode_(mode) {
340 94928 : if (mode == OptionalTimedHistogramScopeMode::TAKE_TIME) {
341 94928 : histogram_->Start(&timer_, isolate);
342 : }
343 : }
344 :
345 94928 : ~OptionalTimedHistogramScope() {
346 94928 : if (mode_ == OptionalTimedHistogramScopeMode::TAKE_TIME) {
347 94928 : histogram_->Stop(&timer_, isolate_);
348 : }
349 : }
350 :
351 : private:
352 : base::ElapsedTimer timer_;
353 : TimedHistogram* const histogram_;
354 : Isolate* const isolate_;
355 : const OptionalTimedHistogramScopeMode mode_;
356 : DISALLOW_IMPLICIT_CONSTRUCTORS(OptionalTimedHistogramScope);
357 : };
358 :
359 : // Helper class for recording a TimedHistogram asynchronously with manual
360 : // controls (it will not generate a report if destroyed without explicitly
361 : // triggering a report). |async_counters| should be a shared_ptr to
362 : // |histogram->counters()|, making it is safe to report to an
363 : // AsyncTimedHistogram after the associated isolate has been destroyed.
364 : // AsyncTimedHistogram can be moved/copied to avoid computing Now() multiple
365 : // times when the times of multiple tasks are identical; each copy will generate
366 : // its own report.
367 : class AsyncTimedHistogram {
368 : public:
369 : explicit AsyncTimedHistogram(TimedHistogram* histogram,
370 : std::shared_ptr<Counters> async_counters)
371 : : histogram_(histogram), async_counters_(std::move(async_counters)) {
372 : histogram_->AssertReportsToCounters(async_counters_.get());
373 : histogram_->Start(&timer_, nullptr);
374 : }
375 :
376 : // Records the time elapsed to |histogram_| and stops |timer_|.
377 : void RecordDone() { histogram_->Stop(&timer_, nullptr); }
378 :
379 : // Records TimeDelta::Max() to |histogram_| and stops |timer_|.
380 : void RecordAbandon() { histogram_->RecordAbandon(&timer_, nullptr); }
381 :
382 : private:
383 : base::ElapsedTimer timer_;
384 : TimedHistogram* histogram_;
385 : std::shared_ptr<Counters> async_counters_;
386 : };
387 :
388 : // Helper class for scoping a TimedHistogram, where the histogram is selected at
389 : // stop time rather than start time.
390 : // TODO(leszeks): This is heavily reliant on TimedHistogram::Start() doing
391 : // nothing but starting the timer, and TimedHistogram::Stop() logging the sample
392 : // correctly even if Start() was not called. This happens to be true iff Stop()
393 : // is passed a null isolate, but that's an implementation detail of
394 : // TimedHistogram, and we shouldn't rely on it.
395 : class LazyTimedHistogramScope {
396 : public:
397 286768 : LazyTimedHistogramScope() : histogram_(nullptr) { timer_.Start(); }
398 286767 : ~LazyTimedHistogramScope() {
399 : // We should set the histogram before this scope exits.
400 : DCHECK_NOT_NULL(histogram_);
401 286768 : histogram_->Stop(&timer_, nullptr);
402 : }
403 :
404 286767 : void set_histogram(TimedHistogram* histogram) { histogram_ = histogram; }
405 :
406 : private:
407 : base::ElapsedTimer timer_;
408 : TimedHistogram* histogram_;
409 : };
410 :
411 : // A HistogramTimer allows distributions of non-nested timed results
412 : // to be created. WARNING: This class is not thread safe and can only
413 : // be run on the foreground thread.
414 : class HistogramTimer : public TimedHistogram {
415 : public:
416 : // Note: public for testing purposes only.
417 : HistogramTimer(const char* name, int min, int max,
418 : HistogramTimerResolution resolution, int num_buckets,
419 : Counters* counters)
420 : : TimedHistogram(name, min, max, resolution, num_buckets, counters) {}
421 :
422 : inline void Start();
423 : inline void Stop();
424 :
425 : // Returns true if the timer is running.
426 : bool Running() {
427 : return Enabled() && timer_.IsStarted();
428 : }
429 :
430 : // TODO(bmeurer): Remove this when HistogramTimerScope is fixed.
431 : #ifdef DEBUG
432 : base::ElapsedTimer* timer() { return &timer_; }
433 : #endif
434 :
435 : private:
436 : friend class Counters;
437 :
438 : base::ElapsedTimer timer_;
439 :
440 : HistogramTimer() = default;
441 : };
442 :
443 : // Helper class for scoping a HistogramTimer.
444 : // TODO(bmeurer): The ifdeffery is an ugly hack around the fact that the
445 : // Parser is currently reentrant (when it throws an error, we call back
446 : // into JavaScript and all bets are off), but ElapsedTimer is not
447 : // reentry-safe. Fix this properly and remove |allow_nesting|.
448 : class HistogramTimerScope {
449 : public:
450 : explicit HistogramTimerScope(HistogramTimer* timer,
451 : bool allow_nesting = false)
452 : #ifdef DEBUG
453 : : timer_(timer), skipped_timer_start_(false) {
454 : if (timer_->timer()->IsStarted() && allow_nesting) {
455 : skipped_timer_start_ = true;
456 : } else {
457 : timer_->Start();
458 : }
459 : }
460 : #else
461 286771 : : timer_(timer) {
462 : timer_->Start();
463 : }
464 : #endif
465 286768 : ~HistogramTimerScope() {
466 : #ifdef DEBUG
467 : if (!skipped_timer_start_) {
468 : timer_->Stop();
469 : }
470 : #else
471 286767 : timer_->Stop();
472 : #endif
473 : }
474 :
475 : private:
476 : HistogramTimer* timer_;
477 : #ifdef DEBUG
478 : bool skipped_timer_start_;
479 : #endif
480 : };
481 :
482 : // A histogram timer that can aggregate events within a larger scope.
483 : //
484 : // Intended use of this timer is to have an outer (aggregating) and an inner
485 : // (to be aggregated) scope, where the inner scope measure the time of events,
486 : // and all those inner scope measurements will be summed up by the outer scope.
487 : // An example use might be to aggregate the time spent in lazy compilation
488 : // while running a script.
489 : //
490 : // Helpers:
491 : // - AggregatingHistogramTimerScope, the "outer" scope within which
492 : // times will be summed up.
493 : // - AggregatedHistogramTimerScope, the "inner" scope which defines the
494 : // events to be timed.
495 : class AggregatableHistogramTimer : public Histogram {
496 : public:
497 : // Start/stop the "outer" scope.
498 269207 : void Start() { time_ = base::TimeDelta(); }
499 269207 : void Stop() {
500 269207 : if (time_ != base::TimeDelta()) {
501 : // Only add non-zero samples, since zero samples represent situations
502 : // where there were no aggregated samples added.
503 45187 : AddSample(static_cast<int>(time_.InMicroseconds()));
504 : }
505 269207 : }
506 :
507 : // Add a time value ("inner" scope).
508 : void Add(base::TimeDelta other) { time_ += other; }
509 :
510 : private:
511 : friend class Counters;
512 :
513 : AggregatableHistogramTimer() = default;
514 : AggregatableHistogramTimer(const char* name, int min, int max,
515 : int num_buckets, Counters* counters)
516 : : Histogram(name, min, max, num_buckets, counters) {}
517 :
518 : base::TimeDelta time_;
519 : };
520 :
521 : // A helper class for use with AggregatableHistogramTimer. This is the
522 : // // outer-most timer scope used with an AggregatableHistogramTimer. It will
523 : // // aggregate the information from the inner AggregatedHistogramTimerScope.
524 : class AggregatingHistogramTimerScope {
525 : public:
526 : explicit AggregatingHistogramTimerScope(AggregatableHistogramTimer* histogram)
527 : : histogram_(histogram) {
528 : histogram_->Start();
529 : }
530 269207 : ~AggregatingHistogramTimerScope() { histogram_->Stop(); }
531 :
532 : private:
533 : AggregatableHistogramTimer* histogram_;
534 : };
535 :
536 : // A helper class for use with AggregatableHistogramTimer, the "inner" scope
537 : // // which defines the events to be timed.
538 : class AggregatedHistogramTimerScope {
539 : public:
540 : explicit AggregatedHistogramTimerScope(AggregatableHistogramTimer* histogram)
541 : : histogram_(histogram) {
542 : timer_.Start();
543 : }
544 : ~AggregatedHistogramTimerScope() { histogram_->Add(timer_.Elapsed()); }
545 :
546 : private:
547 : base::ElapsedTimer timer_;
548 : AggregatableHistogramTimer* histogram_;
549 : };
550 :
551 :
552 : // AggretatedMemoryHistogram collects (time, value) sample pairs and turns
553 : // them into time-uniform samples for the backing historgram, such that the
554 : // backing histogram receives one sample every T ms, where the T is controlled
555 : // by the FLAG_histogram_interval.
556 : //
557 : // More formally: let F be a real-valued function that maps time to sample
558 : // values. We define F as a linear interpolation between adjacent samples. For
559 : // each time interval [x; x + T) the backing histogram gets one sample value
560 : // that is the average of F(t) in the interval.
561 : template <typename Histogram>
562 : class AggregatedMemoryHistogram {
563 : public:
564 : // Note: public for testing purposes only.
565 : explicit AggregatedMemoryHistogram(Histogram* backing_histogram)
566 : : AggregatedMemoryHistogram() {
567 14 : backing_histogram_ = backing_histogram;
568 : }
569 :
570 : // Invariants that hold before and after AddSample if
571 : // is_initialized_ is true:
572 : //
573 : // 1) For we processed samples that came in before start_ms_ and sent the
574 : // corresponding aggregated samples to backing histogram.
575 : // 2) (last_ms_, last_value_) is the last received sample.
576 : // 3) last_ms_ < start_ms_ + FLAG_histogram_interval.
577 : // 4) aggregate_value_ is the average of the function that is constructed by
578 : // linearly interpolating samples received between start_ms_ and last_ms_.
579 : void AddSample(double current_ms, double current_value);
580 :
581 : private:
582 : friend class Counters;
583 :
584 : AggregatedMemoryHistogram()
585 : : is_initialized_(false),
586 : start_ms_(0.0),
587 : last_ms_(0.0),
588 : aggregate_value_(0.0),
589 : last_value_(0.0),
590 14 : backing_histogram_(nullptr) {}
591 : double Aggregate(double current_ms, double current_value);
592 :
593 : bool is_initialized_;
594 : double start_ms_;
595 : double last_ms_;
596 : double aggregate_value_;
597 : double last_value_;
598 : Histogram* backing_histogram_;
599 : };
600 :
601 :
602 : template <typename Histogram>
603 39 : void AggregatedMemoryHistogram<Histogram>::AddSample(double current_ms,
604 : double current_value) {
605 39 : if (!is_initialized_) {
606 14 : aggregate_value_ = current_value;
607 14 : start_ms_ = current_ms;
608 14 : last_value_ = current_value;
609 14 : last_ms_ = current_ms;
610 14 : is_initialized_ = true;
611 : } else {
612 : const double kEpsilon = 1e-6;
613 : const int kMaxSamples = 1000;
614 25 : if (current_ms < last_ms_ + kEpsilon) {
615 : // Two samples have the same time, remember the last one.
616 2 : last_value_ = current_value;
617 : } else {
618 23 : double sample_interval_ms = FLAG_histogram_interval;
619 23 : double end_ms = start_ms_ + sample_interval_ms;
620 23 : if (end_ms <= current_ms + kEpsilon) {
621 : // Linearly interpolate between the last_ms_ and the current_ms.
622 18 : double slope = (current_value - last_value_) / (current_ms - last_ms_);
623 : int i;
624 : // Send aggregated samples to the backing histogram from the start_ms
625 : // to the current_ms.
626 4058 : for (i = 0; i < kMaxSamples && end_ms <= current_ms + kEpsilon; i++) {
627 2020 : double end_value = last_value_ + (end_ms - last_ms_) * slope;
628 : double sample_value;
629 2020 : if (i == 0) {
630 : // Take aggregate_value_ into account.
631 : sample_value = Aggregate(end_ms, end_value);
632 : } else {
633 : // There is no aggregate_value_ for i > 0.
634 2002 : sample_value = (last_value_ + end_value) / 2;
635 : }
636 2020 : backing_histogram_->AddSample(static_cast<int>(sample_value + 0.5));
637 2020 : last_value_ = end_value;
638 2020 : last_ms_ = end_ms;
639 2020 : end_ms += sample_interval_ms;
640 : }
641 18 : if (i == kMaxSamples) {
642 : // We hit the sample limit, ignore the remaining samples.
643 2 : aggregate_value_ = current_value;
644 2 : start_ms_ = current_ms;
645 : } else {
646 16 : aggregate_value_ = last_value_;
647 16 : start_ms_ = last_ms_;
648 : }
649 : }
650 39 : aggregate_value_ = current_ms > start_ms_ + kEpsilon
651 : ? Aggregate(current_ms, current_value)
652 : : aggregate_value_;
653 23 : last_value_ = current_value;
654 23 : last_ms_ = current_ms;
655 : }
656 : }
657 39 : }
658 :
659 :
660 : template <typename Histogram>
661 : double AggregatedMemoryHistogram<Histogram>::Aggregate(double current_ms,
662 : double current_value) {
663 25 : double interval_ms = current_ms - start_ms_;
664 25 : double value = (current_value + last_value_) / 2;
665 : // The aggregate_value_ is the average for [start_ms_; last_ms_].
666 : // The value is the average for [last_ms_; current_ms].
667 : // Return the weighted average of the aggregate_value_ and the value.
668 25 : return aggregate_value_ * ((last_ms_ - start_ms_) / interval_ms) +
669 25 : value * ((current_ms - last_ms_) / interval_ms);
670 : }
671 :
672 : class RuntimeCallCounter final {
673 : public:
674 : RuntimeCallCounter() : RuntimeCallCounter(nullptr) {}
675 : explicit RuntimeCallCounter(const char* name)
676 72363447 : : name_(name), count_(0), time_(0) {}
677 : V8_NOINLINE void Reset();
678 : V8_NOINLINE void Dump(v8::tracing::TracedValue* value);
679 : void Add(RuntimeCallCounter* other);
680 :
681 : const char* name() const { return name_; }
682 : int64_t count() const { return count_; }
683 : base::TimeDelta time() const {
684 : return base::TimeDelta::FromMicroseconds(time_);
685 : }
686 27437 : void Increment() { count_++; }
687 27444 : void Add(base::TimeDelta delta) { time_ += delta.InMicroseconds(); }
688 :
689 : private:
690 : friend class RuntimeCallStats;
691 :
692 : const char* name_;
693 : int64_t count_;
694 : // Stored as int64_t so that its initialization can be deferred.
695 : int64_t time_;
696 : };
697 :
698 : // RuntimeCallTimer is used to keep track of the stack of currently active
699 : // timers used for properly measuring the own time of a RuntimeCallCounter.
700 179248068 : class RuntimeCallTimer final {
701 : public:
702 : RuntimeCallCounter* counter() { return counter_; }
703 13 : void set_counter(RuntimeCallCounter* counter) { counter_ = counter; }
704 : RuntimeCallTimer* parent() const { return parent_.Value(); }
705 : void set_parent(RuntimeCallTimer* timer) { parent_.SetValue(timer); }
706 : const char* name() const { return counter_->name(); }
707 :
708 : inline bool IsStarted();
709 :
710 : inline void Start(RuntimeCallCounter* counter, RuntimeCallTimer* parent);
711 : void Snapshot();
712 : inline RuntimeCallTimer* Stop();
713 :
714 : // Make the time source configurable for testing purposes.
715 : V8_EXPORT_PRIVATE static base::TimeTicks (*Now)();
716 :
717 : private:
718 : inline void Pause(base::TimeTicks now);
719 : inline void Resume(base::TimeTicks now);
720 : inline void CommitTimeToCounter();
721 :
722 : RuntimeCallCounter* counter_ = nullptr;
723 : base::AtomicValue<RuntimeCallTimer*> parent_;
724 : base::TimeTicks start_ticks_;
725 : base::TimeDelta elapsed_;
726 : };
727 :
728 : #define FOR_EACH_GC_COUNTER(V) \
729 : TRACER_SCOPES(V) \
730 : TRACER_BACKGROUND_SCOPES(V)
731 :
732 : #define FOR_EACH_API_COUNTER(V) \
733 : V(ArrayBuffer_Cast) \
734 : V(ArrayBuffer_Detach) \
735 : V(ArrayBuffer_New) \
736 : V(Array_CloneElementAt) \
737 : V(Array_New) \
738 : V(BigInt64Array_New) \
739 : V(BigInt_NewFromWords) \
740 : V(BigIntObject_BigIntValue) \
741 : V(BigIntObject_New) \
742 : V(BigUint64Array_New) \
743 : V(BooleanObject_BooleanValue) \
744 : V(BooleanObject_New) \
745 : V(Context_New) \
746 : V(Context_NewRemoteContext) \
747 : V(DataView_New) \
748 : V(Date_New) \
749 : V(Date_NumberValue) \
750 : V(Debug_Call) \
751 : V(debug_GetPrivateFields) \
752 : V(Error_New) \
753 : V(External_New) \
754 : V(Float32Array_New) \
755 : V(Float64Array_New) \
756 : V(Function_Call) \
757 : V(Function_New) \
758 : V(Function_NewInstance) \
759 : V(FunctionTemplate_GetFunction) \
760 : V(FunctionTemplate_New) \
761 : V(FunctionTemplate_NewRemoteInstance) \
762 : V(FunctionTemplate_NewWithCache) \
763 : V(FunctionTemplate_NewWithFastHandler) \
764 : V(Int16Array_New) \
765 : V(Int32Array_New) \
766 : V(Int8Array_New) \
767 : V(Isolate_DateTimeConfigurationChangeNotification) \
768 : V(Isolate_LocaleConfigurationChangeNotification) \
769 : V(JSON_Parse) \
770 : V(JSON_Stringify) \
771 : V(Map_AsArray) \
772 : V(Map_Clear) \
773 : V(Map_Delete) \
774 : V(Map_Get) \
775 : V(Map_Has) \
776 : V(Map_New) \
777 : V(Map_Set) \
778 : V(Message_GetEndColumn) \
779 : V(Message_GetLineNumber) \
780 : V(Message_GetSourceLine) \
781 : V(Message_GetStartColumn) \
782 : V(Module_Evaluate) \
783 : V(Module_InstantiateModule) \
784 : V(NumberObject_New) \
785 : V(NumberObject_NumberValue) \
786 : V(Object_CallAsConstructor) \
787 : V(Object_CallAsFunction) \
788 : V(Object_CreateDataProperty) \
789 : V(Object_DefineOwnProperty) \
790 : V(Object_DefineProperty) \
791 : V(Object_Delete) \
792 : V(Object_DeleteProperty) \
793 : V(Object_ForceSet) \
794 : V(Object_Get) \
795 : V(Object_GetOwnPropertyDescriptor) \
796 : V(Object_GetOwnPropertyNames) \
797 : V(Object_GetPropertyAttributes) \
798 : V(Object_GetPropertyNames) \
799 : V(Object_GetRealNamedProperty) \
800 : V(Object_GetRealNamedPropertyAttributes) \
801 : V(Object_GetRealNamedPropertyAttributesInPrototypeChain) \
802 : V(Object_GetRealNamedPropertyInPrototypeChain) \
803 : V(Object_Has) \
804 : V(Object_HasOwnProperty) \
805 : V(Object_HasRealIndexedProperty) \
806 : V(Object_HasRealNamedCallbackProperty) \
807 : V(Object_HasRealNamedProperty) \
808 : V(Object_New) \
809 : V(Object_ObjectProtoToString) \
810 : V(Object_Set) \
811 : V(Object_SetAccessor) \
812 : V(Object_SetIntegrityLevel) \
813 : V(Object_SetPrivate) \
814 : V(Object_SetPrototype) \
815 : V(ObjectTemplate_New) \
816 : V(ObjectTemplate_NewInstance) \
817 : V(Object_ToArrayIndex) \
818 : V(Object_ToBigInt) \
819 : V(Object_ToDetailString) \
820 : V(Object_ToInt32) \
821 : V(Object_ToInteger) \
822 : V(Object_ToNumber) \
823 : V(Object_ToObject) \
824 : V(Object_ToString) \
825 : V(Object_ToUint32) \
826 : V(Persistent_New) \
827 : V(Private_New) \
828 : V(Promise_Catch) \
829 : V(Promise_Chain) \
830 : V(Promise_HasRejectHandler) \
831 : V(Promise_Resolver_New) \
832 : V(Promise_Resolver_Reject) \
833 : V(Promise_Resolver_Resolve) \
834 : V(Promise_Result) \
835 : V(Promise_Status) \
836 : V(Promise_Then) \
837 : V(Proxy_New) \
838 : V(RangeError_New) \
839 : V(ReferenceError_New) \
840 : V(RegExp_New) \
841 : V(ScriptCompiler_Compile) \
842 : V(ScriptCompiler_CompileFunctionInContext) \
843 : V(ScriptCompiler_CompileUnbound) \
844 : V(Script_Run) \
845 : V(Set_Add) \
846 : V(Set_AsArray) \
847 : V(Set_Clear) \
848 : V(Set_Delete) \
849 : V(Set_Has) \
850 : V(Set_New) \
851 : V(SharedArrayBuffer_New) \
852 : V(String_Concat) \
853 : V(String_NewExternalOneByte) \
854 : V(String_NewExternalTwoByte) \
855 : V(String_NewFromOneByte) \
856 : V(String_NewFromTwoByte) \
857 : V(String_NewFromUtf8) \
858 : V(StringObject_New) \
859 : V(StringObject_StringValue) \
860 : V(String_Write) \
861 : V(String_WriteUtf8) \
862 : V(Symbol_New) \
863 : V(SymbolObject_New) \
864 : V(SymbolObject_SymbolValue) \
865 : V(SyntaxError_New) \
866 : V(TracedGlobal_New) \
867 : V(TryCatch_StackTrace) \
868 : V(TypeError_New) \
869 : V(Uint16Array_New) \
870 : V(Uint32Array_New) \
871 : V(Uint8Array_New) \
872 : V(Uint8ClampedArray_New) \
873 : V(UnboundScript_GetId) \
874 : V(UnboundScript_GetLineNumber) \
875 : V(UnboundScript_GetName) \
876 : V(UnboundScript_GetSourceMappingURL) \
877 : V(UnboundScript_GetSourceURL) \
878 : V(ValueDeserializer_ReadHeader) \
879 : V(ValueDeserializer_ReadValue) \
880 : V(ValueSerializer_WriteValue) \
881 : V(Value_InstanceOf) \
882 : V(Value_Int32Value) \
883 : V(Value_IntegerValue) \
884 : V(Value_NumberValue) \
885 : V(Value_TypeOf) \
886 : V(Value_Uint32Value) \
887 : V(WeakMap_Get) \
888 : V(WeakMap_New) \
889 : V(WeakMap_Set)
890 :
891 : #define FOR_EACH_MANUAL_COUNTER(V) \
892 : V(AccessorGetterCallback) \
893 : V(AccessorSetterCallback) \
894 : V(ArrayLengthGetter) \
895 : V(ArrayLengthSetter) \
896 : V(BoundFunctionLengthGetter) \
897 : V(BoundFunctionNameGetter) \
898 : V(CompileAnalyse) \
899 : V(CompileBackgroundAnalyse) \
900 : V(CompileBackgroundCompileTask) \
901 : V(CompileBackgroundEval) \
902 : V(CompileBackgroundFunction) \
903 : V(CompileBackgroundIgnition) \
904 : V(CompileBackgroundRewriteReturnResult) \
905 : V(CompileBackgroundScopeAnalysis) \
906 : V(CompileBackgroundScript) \
907 : V(CompileCollectSourcePositions) \
908 : V(CompileDeserialize) \
909 : V(CompileEnqueueOnDispatcher) \
910 : V(CompileEval) \
911 : V(CompileFinalizeBackgroundCompileTask) \
912 : V(CompileFinishNowOnDispatcher) \
913 : V(CompileFunction) \
914 : V(CompileGetFromOptimizedCodeMap) \
915 : V(CompileIgnition) \
916 : V(CompileIgnitionFinalization) \
917 : V(CompileRewriteReturnResult) \
918 : V(CompileScopeAnalysis) \
919 : V(CompileScript) \
920 : V(CompileSerialize) \
921 : V(CompileWaitForDispatcher) \
922 : V(DeoptimizeCode) \
923 : V(DeserializeContext) \
924 : V(DeserializeIsolate) \
925 : V(FunctionCallback) \
926 : V(FunctionLengthGetter) \
927 : V(FunctionPrototypeGetter) \
928 : V(FunctionPrototypeSetter) \
929 : V(GC_Custom_AllAvailableGarbage) \
930 : V(GC_Custom_IncrementalMarkingObserver) \
931 : V(GC_Custom_SlowAllocateRaw) \
932 : V(GCEpilogueCallback) \
933 : V(GCPrologueCallback) \
934 : V(Genesis) \
935 : V(GetMoreDataCallback) \
936 : V(IndexedDefinerCallback) \
937 : V(IndexedDeleterCallback) \
938 : V(IndexedDescriptorCallback) \
939 : V(IndexedEnumeratorCallback) \
940 : V(IndexedGetterCallback) \
941 : V(IndexedQueryCallback) \
942 : V(IndexedSetterCallback) \
943 : V(Invoke) \
944 : V(InvokeApiFunction) \
945 : V(InvokeApiInterruptCallbacks) \
946 : V(InvokeFunctionCallback) \
947 : V(JS_Execution) \
948 : V(Map_SetPrototype) \
949 : V(Map_TransitionToAccessorProperty) \
950 : V(Map_TransitionToDataProperty) \
951 : V(MessageListenerCallback) \
952 : V(NamedDefinerCallback) \
953 : V(NamedDeleterCallback) \
954 : V(NamedDescriptorCallback) \
955 : V(NamedEnumeratorCallback) \
956 : V(NamedGetterCallback) \
957 : V(NamedQueryCallback) \
958 : V(NamedSetterCallback) \
959 : V(Object_DeleteProperty) \
960 : V(ObjectVerify) \
961 : V(OptimizeCode) \
962 : V(ParseArrowFunctionLiteral) \
963 : V(ParseBackgroundArrowFunctionLiteral) \
964 : V(ParseBackgroundFunctionLiteral) \
965 : V(ParseBackgroundProgram) \
966 : V(ParseEval) \
967 : V(ParseFunction) \
968 : V(ParseFunctionLiteral) \
969 : V(ParseProgram) \
970 : V(PreParseArrowFunctionLiteral) \
971 : V(PreParseBackgroundArrowFunctionLiteral) \
972 : V(PreParseBackgroundWithVariableResolution) \
973 : V(PreParseWithVariableResolution) \
974 : V(PropertyCallback) \
975 : V(PrototypeMap_TransitionToAccessorProperty) \
976 : V(PrototypeMap_TransitionToDataProperty) \
977 : V(PrototypeObject_DeleteProperty) \
978 : V(RecompileConcurrent) \
979 : V(RecompileSynchronous) \
980 : V(ReconfigureToDataProperty) \
981 : V(StringLengthGetter) \
982 : V(TestCounter1) \
983 : V(TestCounter2) \
984 : V(TestCounter3)
985 :
986 : #define FOR_EACH_HANDLER_COUNTER(V) \
987 : V(KeyedLoadIC_KeyedLoadSloppyArgumentsStub) \
988 : V(KeyedLoadIC_LoadElementDH) \
989 : V(KeyedLoadIC_LoadIndexedInterceptorStub) \
990 : V(KeyedLoadIC_LoadIndexedStringDH) \
991 : V(KeyedLoadIC_SlowStub) \
992 : V(KeyedStoreIC_ElementsTransitionAndStoreStub) \
993 : V(KeyedStoreIC_KeyedStoreSloppyArgumentsStub) \
994 : V(KeyedStoreIC_SlowStub) \
995 : V(KeyedStoreIC_StoreElementStub) \
996 : V(KeyedStoreIC_StoreFastElementStub) \
997 : V(LoadGlobalIC_LoadScriptContextField) \
998 : V(LoadGlobalIC_SlowStub) \
999 : V(LoadIC_FunctionPrototypeStub) \
1000 : V(LoadIC_HandlerCacheHit_Accessor) \
1001 : V(LoadIC_LoadAccessorDH) \
1002 : V(LoadIC_LoadAccessorFromPrototypeDH) \
1003 : V(LoadIC_LoadApiGetterFromPrototypeDH) \
1004 : V(LoadIC_LoadCallback) \
1005 : V(LoadIC_LoadConstantDH) \
1006 : V(LoadIC_LoadConstantFromPrototypeDH) \
1007 : V(LoadIC_LoadFieldDH) \
1008 : V(LoadIC_LoadFieldFromPrototypeDH) \
1009 : V(LoadIC_LoadGlobalDH) \
1010 : V(LoadIC_LoadGlobalFromPrototypeDH) \
1011 : V(LoadIC_LoadIntegerIndexedExoticDH) \
1012 : V(LoadIC_LoadInterceptorDH) \
1013 : V(LoadIC_LoadInterceptorFromPrototypeDH) \
1014 : V(LoadIC_LoadNativeDataPropertyDH) \
1015 : V(LoadIC_LoadNativeDataPropertyFromPrototypeDH) \
1016 : V(LoadIC_LoadNonexistentDH) \
1017 : V(LoadIC_LoadNonMaskingInterceptorDH) \
1018 : V(LoadIC_LoadNormalDH) \
1019 : V(LoadIC_LoadNormalFromPrototypeDH) \
1020 : V(LoadIC_NonReceiver) \
1021 : V(LoadIC_Premonomorphic) \
1022 : V(LoadIC_SlowStub) \
1023 : V(LoadIC_StringLength) \
1024 : V(LoadIC_StringWrapperLength) \
1025 : V(StoreGlobalIC_SlowStub) \
1026 : V(StoreGlobalIC_StoreScriptContextField) \
1027 : V(StoreGlobalIC_Premonomorphic) \
1028 : V(StoreIC_HandlerCacheHit_Accessor) \
1029 : V(StoreIC_NonReceiver) \
1030 : V(StoreIC_Premonomorphic) \
1031 : V(StoreIC_SlowStub) \
1032 : V(StoreIC_StoreAccessorDH) \
1033 : V(StoreIC_StoreAccessorOnPrototypeDH) \
1034 : V(StoreIC_StoreApiSetterOnPrototypeDH) \
1035 : V(StoreIC_StoreFieldDH) \
1036 : V(StoreIC_StoreGlobalDH) \
1037 : V(StoreIC_StoreGlobalTransitionDH) \
1038 : V(StoreIC_StoreInterceptorStub) \
1039 : V(StoreIC_StoreNativeDataPropertyDH) \
1040 : V(StoreIC_StoreNativeDataPropertyOnPrototypeDH) \
1041 : V(StoreIC_StoreNormalDH) \
1042 : V(StoreIC_StoreTransitionDH) \
1043 : V(StoreInArrayLiteralIC_SlowStub)
1044 :
1045 : enum RuntimeCallCounterId {
1046 : #define CALL_RUNTIME_COUNTER(name) kGC_##name,
1047 : FOR_EACH_GC_COUNTER(CALL_RUNTIME_COUNTER)
1048 : #undef CALL_RUNTIME_COUNTER
1049 : #define CALL_RUNTIME_COUNTER(name) k##name,
1050 : FOR_EACH_MANUAL_COUNTER(CALL_RUNTIME_COUNTER)
1051 : #undef CALL_RUNTIME_COUNTER
1052 : #define CALL_RUNTIME_COUNTER(name, nargs, ressize) kRuntime_##name,
1053 : FOR_EACH_INTRINSIC(CALL_RUNTIME_COUNTER)
1054 : #undef CALL_RUNTIME_COUNTER
1055 : #define CALL_BUILTIN_COUNTER(name) kBuiltin_##name,
1056 : BUILTIN_LIST_C(CALL_BUILTIN_COUNTER)
1057 : #undef CALL_BUILTIN_COUNTER
1058 : #define CALL_BUILTIN_COUNTER(name) kAPI_##name,
1059 : FOR_EACH_API_COUNTER(CALL_BUILTIN_COUNTER)
1060 : #undef CALL_BUILTIN_COUNTER
1061 : #define CALL_BUILTIN_COUNTER(name) kHandler_##name,
1062 : FOR_EACH_HANDLER_COUNTER(CALL_BUILTIN_COUNTER)
1063 : #undef CALL_BUILTIN_COUNTER
1064 : kNumberOfCounters
1065 : };
1066 :
1067 : class RuntimeCallStats final {
1068 : public:
1069 : V8_EXPORT_PRIVATE RuntimeCallStats();
1070 :
1071 : // Starting measuring the time for a function. This will establish the
1072 : // connection to the parent counter for properly calculating the own times.
1073 : V8_EXPORT_PRIVATE void Enter(RuntimeCallTimer* timer,
1074 : RuntimeCallCounterId counter_id);
1075 :
1076 : // Leave a scope for a measured runtime function. This will properly add
1077 : // the time delta to the current_counter and subtract the delta from its
1078 : // parent.
1079 : V8_EXPORT_PRIVATE void Leave(RuntimeCallTimer* timer);
1080 :
1081 : // Set counter id for the innermost measurement. It can be used to refine
1082 : // event kind when a runtime entry counter is too generic.
1083 : V8_EXPORT_PRIVATE void CorrectCurrentCounterId(
1084 : RuntimeCallCounterId counter_id);
1085 :
1086 : V8_EXPORT_PRIVATE void Reset();
1087 : // Add all entries from another stats object.
1088 : void Add(RuntimeCallStats* other);
1089 : V8_EXPORT_PRIVATE void Print(std::ostream& os);
1090 : V8_EXPORT_PRIVATE void Print();
1091 : V8_NOINLINE void Dump(v8::tracing::TracedValue* value);
1092 :
1093 : ThreadId thread_id() const { return thread_id_; }
1094 : RuntimeCallTimer* current_timer() { return current_timer_.Value(); }
1095 : RuntimeCallCounter* current_counter() { return current_counter_.Value(); }
1096 : bool InUse() { return in_use_; }
1097 : bool IsCalledOnTheSameThread();
1098 :
1099 : static const int kNumberOfCounters =
1100 : static_cast<int>(RuntimeCallCounterId::kNumberOfCounters);
1101 : RuntimeCallCounter* GetCounter(RuntimeCallCounterId counter_id) {
1102 27456 : return &counters_[static_cast<int>(counter_id)];
1103 : }
1104 : RuntimeCallCounter* GetCounter(int counter_id) {
1105 904194 : return &counters_[counter_id];
1106 : }
1107 :
1108 : private:
1109 : // Top of a stack of active timers.
1110 : base::AtomicValue<RuntimeCallTimer*> current_timer_;
1111 : // Active counter object associated with current timer.
1112 : base::AtomicValue<RuntimeCallCounter*> current_counter_;
1113 : // Used to track nested tracing scopes.
1114 : bool in_use_;
1115 : ThreadId thread_id_;
1116 : RuntimeCallCounter counters_[kNumberOfCounters];
1117 : };
1118 :
1119 : class WorkerThreadRuntimeCallStats final {
1120 : public:
1121 : WorkerThreadRuntimeCallStats();
1122 : ~WorkerThreadRuntimeCallStats();
1123 :
1124 : // Returns the TLS key associated with this WorkerThreadRuntimeCallStats.
1125 : base::Thread::LocalStorageKey GetKey();
1126 :
1127 : // Returns a new worker thread runtime call stats table managed by this
1128 : // WorkerThreadRuntimeCallStats.
1129 : RuntimeCallStats* NewTable();
1130 :
1131 : // Adds the counters from the worker thread tables to |main_call_stats|.
1132 : void AddToMainTable(RuntimeCallStats* main_call_stats);
1133 :
1134 : private:
1135 : base::Mutex mutex_;
1136 : std::vector<std::unique_ptr<RuntimeCallStats>> tables_;
1137 : base::Optional<base::Thread::LocalStorageKey> tls_key_;
1138 : };
1139 :
1140 : // Creating a WorkerThreadRuntimeCallStatsScope will provide a thread-local
1141 : // runtime call stats table, and will dump the table to an immediate trace event
1142 : // when it is destroyed.
1143 : class WorkerThreadRuntimeCallStatsScope final {
1144 : public:
1145 : WorkerThreadRuntimeCallStatsScope(
1146 : WorkerThreadRuntimeCallStats* off_thread_stats);
1147 : ~WorkerThreadRuntimeCallStatsScope();
1148 :
1149 20461 : RuntimeCallStats* Get() const { return table_; }
1150 :
1151 : private:
1152 : RuntimeCallStats* table_;
1153 : };
1154 :
1155 : #define CHANGE_CURRENT_RUNTIME_COUNTER(runtime_call_stats, counter_id) \
1156 : do { \
1157 : if (V8_UNLIKELY(TracingFlags::is_runtime_stats_enabled()) && \
1158 : runtime_call_stats) { \
1159 : runtime_call_stats->CorrectCurrentCounterId(counter_id); \
1160 : } \
1161 : } while (false)
1162 :
1163 : #define TRACE_HANDLER_STATS(isolate, counter_name) \
1164 : CHANGE_CURRENT_RUNTIME_COUNTER( \
1165 : isolate->counters()->runtime_call_stats(), \
1166 : RuntimeCallCounterId::kHandler_##counter_name)
1167 :
1168 : // A RuntimeCallTimerScopes wraps around a RuntimeCallTimer to measure the
1169 : // the time of C++ scope.
1170 : class RuntimeCallTimerScope {
1171 : public:
1172 : inline RuntimeCallTimerScope(Isolate* isolate,
1173 : RuntimeCallCounterId counter_id);
1174 : // This constructor is here just to avoid calling GetIsolate() when the
1175 : // stats are disabled and the isolate is not directly available.
1176 : inline RuntimeCallTimerScope(Isolate* isolate, HeapObject heap_object,
1177 : RuntimeCallCounterId counter_id);
1178 17229076 : inline RuntimeCallTimerScope(RuntimeCallStats* stats,
1179 17229076 : RuntimeCallCounterId counter_id) {
1180 17229076 : if (V8_LIKELY(!TracingFlags::is_runtime_stats_enabled() ||
1181 : stats == nullptr))
1182 : return;
1183 8124 : stats_ = stats;
1184 8124 : stats_->Enter(&timer_, counter_id);
1185 : }
1186 :
1187 169386948 : inline ~RuntimeCallTimerScope() {
1188 169386948 : if (V8_UNLIKELY(stats_ != nullptr)) {
1189 27432 : stats_->Leave(&timer_);
1190 : }
1191 : }
1192 :
1193 : private:
1194 : RuntimeCallStats* stats_ = nullptr;
1195 : RuntimeCallTimer timer_;
1196 :
1197 : DISALLOW_COPY_AND_ASSIGN(RuntimeCallTimerScope);
1198 : };
1199 :
1200 : #define HISTOGRAM_RANGE_LIST(HR) \
1201 : /* Generic range histograms: HR(name, caption, min, max, num_buckets) */ \
1202 : HR(background_marking, V8.GCBackgroundMarking, 0, 10000, 101) \
1203 : HR(background_scavenger, V8.GCBackgroundScavenger, 0, 10000, 101) \
1204 : HR(background_sweeping, V8.GCBackgroundSweeping, 0, 10000, 101) \
1205 : HR(detached_context_age_in_gc, V8.DetachedContextAgeInGC, 0, 20, 21) \
1206 : HR(code_cache_reject_reason, V8.CodeCacheRejectReason, 1, 6, 6) \
1207 : HR(errors_thrown_per_context, V8.ErrorsThrownPerContext, 0, 200, 20) \
1208 : HR(debug_feature_usage, V8.DebugFeatureUsage, 1, 7, 7) \
1209 : HR(incremental_marking_reason, V8.GCIncrementalMarkingReason, 0, 21, 22) \
1210 : HR(incremental_marking_sum, V8.GCIncrementalMarkingSum, 0, 10000, 101) \
1211 : HR(mark_compact_reason, V8.GCMarkCompactReason, 0, 21, 22) \
1212 : HR(gc_finalize_clear, V8.GCFinalizeMC.Clear, 0, 10000, 101) \
1213 : HR(gc_finalize_epilogue, V8.GCFinalizeMC.Epilogue, 0, 10000, 101) \
1214 : HR(gc_finalize_evacuate, V8.GCFinalizeMC.Evacuate, 0, 10000, 101) \
1215 : HR(gc_finalize_finish, V8.GCFinalizeMC.Finish, 0, 10000, 101) \
1216 : HR(gc_finalize_mark, V8.GCFinalizeMC.Mark, 0, 10000, 101) \
1217 : HR(gc_finalize_prologue, V8.GCFinalizeMC.Prologue, 0, 10000, 101) \
1218 : HR(gc_finalize_sweep, V8.GCFinalizeMC.Sweep, 0, 10000, 101) \
1219 : HR(gc_scavenger_scavenge_main, V8.GCScavenger.ScavengeMain, 0, 10000, 101) \
1220 : HR(gc_scavenger_scavenge_roots, V8.GCScavenger.ScavengeRoots, 0, 10000, 101) \
1221 : HR(gc_mark_compactor, V8.GCMarkCompactor, 0, 10000, 101) \
1222 : HR(scavenge_reason, V8.GCScavengeReason, 0, 21, 22) \
1223 : HR(young_generation_handling, V8.GCYoungGenerationHandling, 0, 2, 3) \
1224 : /* Asm/Wasm. */ \
1225 : HR(wasm_functions_per_asm_module, V8.WasmFunctionsPerModule.asm, 1, 1000000, \
1226 : 51) \
1227 : HR(wasm_functions_per_wasm_module, V8.WasmFunctionsPerModule.wasm, 1, \
1228 : 1000000, 51) \
1229 : HR(array_buffer_big_allocations, V8.ArrayBufferLargeAllocations, 0, 4096, \
1230 : 13) \
1231 : HR(array_buffer_new_size_failures, V8.ArrayBufferNewSizeFailures, 0, 4096, \
1232 : 13) \
1233 : HR(shared_array_allocations, V8.SharedArrayAllocationSizes, 0, 4096, 13) \
1234 : HR(wasm_asm_function_size_bytes, V8.WasmFunctionSizeBytes.asm, 1, GB, 51) \
1235 : HR(wasm_wasm_function_size_bytes, V8.WasmFunctionSizeBytes.wasm, 1, GB, 51) \
1236 : HR(wasm_asm_module_size_bytes, V8.WasmModuleSizeBytes.asm, 1, GB, 51) \
1237 : HR(wasm_wasm_module_size_bytes, V8.WasmModuleSizeBytes.wasm, 1, GB, 51) \
1238 : HR(wasm_asm_min_mem_pages_count, V8.WasmMinMemPagesCount.asm, 1, 2 << 16, \
1239 : 51) \
1240 : HR(wasm_wasm_min_mem_pages_count, V8.WasmMinMemPagesCount.wasm, 1, 2 << 16, \
1241 : 51) \
1242 : HR(wasm_wasm_max_mem_pages_count, V8.WasmMaxMemPagesCount.wasm, 1, 2 << 16, \
1243 : 51) \
1244 : HR(wasm_decode_asm_module_peak_memory_bytes, \
1245 : V8.WasmDecodeModulePeakMemoryBytes.asm, 1, GB, 51) \
1246 : HR(wasm_decode_wasm_module_peak_memory_bytes, \
1247 : V8.WasmDecodeModulePeakMemoryBytes.wasm, 1, GB, 51) \
1248 : HR(asm_wasm_translation_peak_memory_bytes, \
1249 : V8.AsmWasmTranslationPeakMemoryBytes, 1, GB, 51) \
1250 : HR(wasm_compile_function_peak_memory_bytes, \
1251 : V8.WasmCompileFunctionPeakMemoryBytes, 1, GB, 51) \
1252 : HR(asm_module_size_bytes, V8.AsmModuleSizeBytes, 1, GB, 51) \
1253 : HR(asm_wasm_translation_throughput, V8.AsmWasmTranslationThroughput, 1, 100, \
1254 : 20) \
1255 : HR(wasm_lazy_compilation_throughput, V8.WasmLazyCompilationThroughput, 1, \
1256 : 10000, 50) \
1257 : HR(compile_script_cache_behaviour, V8.CompileScript.CacheBehaviour, 0, 20, \
1258 : 21) \
1259 : HR(wasm_memory_allocation_result, V8.WasmMemoryAllocationResult, 0, 3, 4) \
1260 : HR(wasm_address_space_usage_mb, V8.WasmAddressSpaceUsageMiB, 0, 1 << 20, \
1261 : 128) \
1262 : /* code size of live modules, collected on GC */ \
1263 : HR(wasm_module_code_size_mb, V8.WasmModuleCodeSizeMiB, 0, 1024, 64) \
1264 : /* code size of modules after baseline compilation */ \
1265 : HR(wasm_module_code_size_mb_after_baseline, \
1266 : V8.WasmModuleCodeSizeBaselineMiB, 0, 1024, 64) \
1267 : /* code size of modules after top-tier compilation */ \
1268 : HR(wasm_module_code_size_mb_after_top_tier, V8.WasmModuleCodeSizeTopTierMiB, \
1269 : 0, 1024, 64)
1270 :
1271 : #define HISTOGRAM_TIMER_LIST(HT) \
1272 : /* Timer histograms, not thread safe: HT(name, caption, max, unit) */ \
1273 : /* Garbage collection timers. */ \
1274 : HT(gc_context, V8.GCContext, 10000, \
1275 : MILLISECOND) /* GC context cleanup time */ \
1276 : HT(gc_idle_notification, V8.GCIdleNotification, 10000, MILLISECOND) \
1277 : HT(gc_incremental_marking, V8.GCIncrementalMarking, 10000, MILLISECOND) \
1278 : HT(gc_incremental_marking_start, V8.GCIncrementalMarkingStart, 10000, \
1279 : MILLISECOND) \
1280 : HT(gc_incremental_marking_finalize, V8.GCIncrementalMarkingFinalize, 10000, \
1281 : MILLISECOND) \
1282 : HT(gc_low_memory_notification, V8.GCLowMemoryNotification, 10000, \
1283 : MILLISECOND) \
1284 : /* Compilation times. */ \
1285 : HT(collect_source_positions, V8.CollectSourcePositions, 1000000, \
1286 : MICROSECOND) \
1287 : HT(compile, V8.CompileMicroSeconds, 1000000, MICROSECOND) \
1288 : HT(compile_eval, V8.CompileEvalMicroSeconds, 1000000, MICROSECOND) \
1289 : /* Serialization as part of compilation (code caching) */ \
1290 : HT(compile_serialize, V8.CompileSerializeMicroSeconds, 100000, MICROSECOND) \
1291 : HT(compile_deserialize, V8.CompileDeserializeMicroSeconds, 1000000, \
1292 : MICROSECOND) \
1293 : /* Total compilation time incl. caching/parsing */ \
1294 : HT(compile_script, V8.CompileScriptMicroSeconds, 1000000, MICROSECOND) \
1295 : /* Total JavaScript execution time (including callbacks and runtime calls */ \
1296 : HT(execute, V8.Execute, 1000000, MICROSECOND) \
1297 : /* Asm/Wasm */ \
1298 : HT(asm_wasm_translation_time, V8.AsmWasmTranslationMicroSeconds, 1000000, \
1299 : MICROSECOND) \
1300 : HT(wasm_lazy_compilation_time, V8.WasmLazyCompilationMicroSeconds, 1000000, \
1301 : MICROSECOND)
1302 :
1303 : #define TIMED_HISTOGRAM_LIST(HT) \
1304 : /* Timer histograms, thread safe: HT(name, caption, max, unit) */ \
1305 : /* Garbage collection timers. */ \
1306 : HT(gc_compactor, V8.GCCompactor, 10000, MILLISECOND) \
1307 : HT(gc_compactor_background, V8.GCCompactorBackground, 10000, MILLISECOND) \
1308 : HT(gc_compactor_foreground, V8.GCCompactorForeground, 10000, MILLISECOND) \
1309 : HT(gc_finalize, V8.GCFinalizeMC, 10000, MILLISECOND) \
1310 : HT(gc_finalize_background, V8.GCFinalizeMCBackground, 10000, MILLISECOND) \
1311 : HT(gc_finalize_foreground, V8.GCFinalizeMCForeground, 10000, MILLISECOND) \
1312 : HT(gc_finalize_reduce_memory, V8.GCFinalizeMCReduceMemory, 10000, \
1313 : MILLISECOND) \
1314 : HT(gc_finalize_reduce_memory_background, \
1315 : V8.GCFinalizeMCReduceMemoryBackground, 10000, MILLISECOND) \
1316 : HT(gc_finalize_reduce_memory_foreground, \
1317 : V8.GCFinalizeMCReduceMemoryForeground, 10000, MILLISECOND) \
1318 : HT(gc_scavenger, V8.GCScavenger, 10000, MILLISECOND) \
1319 : HT(gc_scavenger_background, V8.GCScavengerBackground, 10000, MILLISECOND) \
1320 : HT(gc_scavenger_foreground, V8.GCScavengerForeground, 10000, MILLISECOND) \
1321 : /* Wasm timers. */ \
1322 : HT(wasm_decode_asm_module_time, V8.WasmDecodeModuleMicroSeconds.asm, \
1323 : 1000000, MICROSECOND) \
1324 : HT(wasm_decode_wasm_module_time, V8.WasmDecodeModuleMicroSeconds.wasm, \
1325 : 1000000, MICROSECOND) \
1326 : HT(wasm_decode_asm_function_time, V8.WasmDecodeFunctionMicroSeconds.asm, \
1327 : 1000000, MICROSECOND) \
1328 : HT(wasm_decode_wasm_function_time, V8.WasmDecodeFunctionMicroSeconds.wasm, \
1329 : 1000000, MICROSECOND) \
1330 : HT(wasm_compile_asm_module_time, V8.WasmCompileModuleMicroSeconds.asm, \
1331 : 10000000, MICROSECOND) \
1332 : HT(wasm_compile_wasm_module_time, V8.WasmCompileModuleMicroSeconds.wasm, \
1333 : 10000000, MICROSECOND) \
1334 : HT(wasm_compile_asm_function_time, V8.WasmCompileFunctionMicroSeconds.asm, \
1335 : 1000000, MICROSECOND) \
1336 : HT(wasm_compile_wasm_function_time, V8.WasmCompileFunctionMicroSeconds.wasm, \
1337 : 1000000, MICROSECOND) \
1338 : HT(liftoff_compile_time, V8.LiftoffCompileMicroSeconds, 10000000, \
1339 : MICROSECOND) \
1340 : HT(wasm_instantiate_wasm_module_time, \
1341 : V8.WasmInstantiateModuleMicroSeconds.wasm, 10000000, MICROSECOND) \
1342 : HT(wasm_instantiate_asm_module_time, \
1343 : V8.WasmInstantiateModuleMicroSeconds.asm, 10000000, MICROSECOND) \
1344 : /* Total compilation time incl. caching/parsing for various cache states. */ \
1345 : HT(compile_script_with_produce_cache, \
1346 : V8.CompileScriptMicroSeconds.ProduceCache, 1000000, MICROSECOND) \
1347 : HT(compile_script_with_isolate_cache_hit, \
1348 : V8.CompileScriptMicroSeconds.IsolateCacheHit, 1000000, MICROSECOND) \
1349 : HT(compile_script_with_consume_cache, \
1350 : V8.CompileScriptMicroSeconds.ConsumeCache, 1000000, MICROSECOND) \
1351 : HT(compile_script_consume_failed, \
1352 : V8.CompileScriptMicroSeconds.ConsumeCache.Failed, 1000000, MICROSECOND) \
1353 : HT(compile_script_no_cache_other, \
1354 : V8.CompileScriptMicroSeconds.NoCache.Other, 1000000, MICROSECOND) \
1355 : HT(compile_script_no_cache_because_inline_script, \
1356 : V8.CompileScriptMicroSeconds.NoCache.InlineScript, 1000000, MICROSECOND) \
1357 : HT(compile_script_no_cache_because_script_too_small, \
1358 : V8.CompileScriptMicroSeconds.NoCache.ScriptTooSmall, 1000000, \
1359 : MICROSECOND) \
1360 : HT(compile_script_no_cache_because_cache_too_cold, \
1361 : V8.CompileScriptMicroSeconds.NoCache.CacheTooCold, 1000000, MICROSECOND) \
1362 : HT(compile_script_on_background, \
1363 : V8.CompileScriptMicroSeconds.BackgroundThread, 1000000, MICROSECOND) \
1364 : HT(compile_function_on_background, \
1365 : V8.CompileFunctionMicroSeconds.BackgroundThread, 1000000, MICROSECOND)
1366 :
1367 : #define AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) \
1368 : AHT(compile_lazy, V8.CompileLazyMicroSeconds)
1369 :
1370 : #define HISTOGRAM_PERCENTAGE_LIST(HP) \
1371 : /* Heap fragmentation. */ \
1372 : HP(external_fragmentation_total, V8.MemoryExternalFragmentationTotal) \
1373 : HP(external_fragmentation_old_space, V8.MemoryExternalFragmentationOldSpace) \
1374 : HP(external_fragmentation_code_space, \
1375 : V8.MemoryExternalFragmentationCodeSpace) \
1376 : HP(external_fragmentation_map_space, V8.MemoryExternalFragmentationMapSpace) \
1377 : HP(external_fragmentation_lo_space, V8.MemoryExternalFragmentationLoSpace)
1378 :
1379 : // Note: These use Histogram with options (min=1000, max=500000, buckets=50).
1380 : #define HISTOGRAM_LEGACY_MEMORY_LIST(HM) \
1381 : HM(heap_sample_total_committed, V8.MemoryHeapSampleTotalCommitted) \
1382 : HM(heap_sample_total_used, V8.MemoryHeapSampleTotalUsed) \
1383 : HM(heap_sample_map_space_committed, V8.MemoryHeapSampleMapSpaceCommitted) \
1384 : HM(heap_sample_code_space_committed, V8.MemoryHeapSampleCodeSpaceCommitted) \
1385 : HM(heap_sample_maximum_committed, V8.MemoryHeapSampleMaximumCommitted)
1386 :
1387 : // WARNING: STATS_COUNTER_LIST_* is a very large macro that is causing MSVC
1388 : // Intellisense to crash. It was broken into two macros (each of length 40
1389 : // lines) rather than one macro (of length about 80 lines) to work around
1390 : // this problem. Please avoid using recursive macros of this length when
1391 : // possible.
1392 : #define STATS_COUNTER_LIST_1(SC) \
1393 : /* Global Handle Count*/ \
1394 : SC(global_handles, V8.GlobalHandles) \
1395 : /* OS Memory allocated */ \
1396 : SC(memory_allocated, V8.OsMemoryAllocated) \
1397 : SC(maps_normalized, V8.MapsNormalized) \
1398 : SC(maps_created, V8.MapsCreated) \
1399 : SC(elements_transitions, V8.ObjectElementsTransitions) \
1400 : SC(props_to_dictionary, V8.ObjectPropertiesToDictionary) \
1401 : SC(elements_to_dictionary, V8.ObjectElementsToDictionary) \
1402 : SC(alive_after_last_gc, V8.AliveAfterLastGC) \
1403 : SC(objs_since_last_young, V8.ObjsSinceLastYoung) \
1404 : SC(objs_since_last_full, V8.ObjsSinceLastFull) \
1405 : SC(string_table_capacity, V8.StringTableCapacity) \
1406 : SC(number_of_symbols, V8.NumberOfSymbols) \
1407 : SC(inlined_copied_elements, V8.InlinedCopiedElements) \
1408 : SC(compilation_cache_hits, V8.CompilationCacheHits) \
1409 : SC(compilation_cache_misses, V8.CompilationCacheMisses) \
1410 : /* Amount of evaled source code. */ \
1411 : SC(total_eval_size, V8.TotalEvalSize) \
1412 : /* Amount of loaded source code. */ \
1413 : SC(total_load_size, V8.TotalLoadSize) \
1414 : /* Amount of parsed source code. */ \
1415 : SC(total_parse_size, V8.TotalParseSize) \
1416 : /* Amount of source code skipped over using preparsing. */ \
1417 : SC(total_preparse_skipped, V8.TotalPreparseSkipped) \
1418 : /* Amount of compiled source code. */ \
1419 : SC(total_compile_size, V8.TotalCompileSize) \
1420 : /* Amount of source code compiled with the full codegen. */ \
1421 : SC(total_full_codegen_source_size, V8.TotalFullCodegenSourceSize) \
1422 : /* Number of contexts created from scratch. */ \
1423 : SC(contexts_created_from_scratch, V8.ContextsCreatedFromScratch) \
1424 : /* Number of contexts created by partial snapshot. */ \
1425 : SC(contexts_created_by_snapshot, V8.ContextsCreatedBySnapshot) \
1426 : /* Number of code objects found from pc. */ \
1427 : SC(pc_to_code, V8.PcToCode) \
1428 : SC(pc_to_code_cached, V8.PcToCodeCached) \
1429 : /* The store-buffer implementation of the write barrier. */ \
1430 : SC(store_buffer_overflows, V8.StoreBufferOverflows)
1431 :
1432 : #define STATS_COUNTER_LIST_2(SC) \
1433 : /* Amount of (JS) compiled code. */ \
1434 : SC(total_compiled_code_size, V8.TotalCompiledCodeSize) \
1435 : SC(gc_compactor_caused_by_request, V8.GCCompactorCausedByRequest) \
1436 : SC(gc_compactor_caused_by_promoted_data, V8.GCCompactorCausedByPromotedData) \
1437 : SC(gc_compactor_caused_by_oldspace_exhaustion, \
1438 : V8.GCCompactorCausedByOldspaceExhaustion) \
1439 : SC(gc_last_resort_from_js, V8.GCLastResortFromJS) \
1440 : SC(gc_last_resort_from_handles, V8.GCLastResortFromHandles) \
1441 : SC(ic_keyed_load_generic_smi, V8.ICKeyedLoadGenericSmi) \
1442 : SC(ic_keyed_load_generic_symbol, V8.ICKeyedLoadGenericSymbol) \
1443 : SC(ic_keyed_load_generic_slow, V8.ICKeyedLoadGenericSlow) \
1444 : SC(ic_named_load_global_stub, V8.ICNamedLoadGlobalStub) \
1445 : SC(ic_store_normal_miss, V8.ICStoreNormalMiss) \
1446 : SC(ic_store_normal_hit, V8.ICStoreNormalHit) \
1447 : SC(ic_binary_op_miss, V8.ICBinaryOpMiss) \
1448 : SC(ic_compare_miss, V8.ICCompareMiss) \
1449 : SC(ic_call_miss, V8.ICCallMiss) \
1450 : SC(ic_keyed_call_miss, V8.ICKeyedCallMiss) \
1451 : SC(ic_store_miss, V8.ICStoreMiss) \
1452 : SC(ic_keyed_store_miss, V8.ICKeyedStoreMiss) \
1453 : SC(cow_arrays_converted, V8.COWArraysConverted) \
1454 : SC(constructed_objects, V8.ConstructedObjects) \
1455 : SC(constructed_objects_runtime, V8.ConstructedObjectsRuntime) \
1456 : SC(megamorphic_stub_cache_probes, V8.MegamorphicStubCacheProbes) \
1457 : SC(megamorphic_stub_cache_misses, V8.MegamorphicStubCacheMisses) \
1458 : SC(megamorphic_stub_cache_updates, V8.MegamorphicStubCacheUpdates) \
1459 : SC(enum_cache_hits, V8.EnumCacheHits) \
1460 : SC(enum_cache_misses, V8.EnumCacheMisses) \
1461 : SC(fast_new_closure_total, V8.FastNewClosureTotal) \
1462 : SC(string_add_runtime, V8.StringAddRuntime) \
1463 : SC(string_add_native, V8.StringAddNative) \
1464 : SC(sub_string_runtime, V8.SubStringRuntime) \
1465 : SC(sub_string_native, V8.SubStringNative) \
1466 : SC(regexp_entry_runtime, V8.RegExpEntryRuntime) \
1467 : SC(regexp_entry_native, V8.RegExpEntryNative) \
1468 : SC(math_exp_runtime, V8.MathExpRuntime) \
1469 : SC(math_log_runtime, V8.MathLogRuntime) \
1470 : SC(math_pow_runtime, V8.MathPowRuntime) \
1471 : SC(stack_interrupts, V8.StackInterrupts) \
1472 : SC(runtime_profiler_ticks, V8.RuntimeProfilerTicks) \
1473 : SC(runtime_calls, V8.RuntimeCalls) \
1474 : SC(bounds_checks_eliminated, V8.BoundsChecksEliminated) \
1475 : SC(bounds_checks_hoisted, V8.BoundsChecksHoisted) \
1476 : SC(soft_deopts_requested, V8.SoftDeoptsRequested) \
1477 : SC(soft_deopts_inserted, V8.SoftDeoptsInserted) \
1478 : SC(soft_deopts_executed, V8.SoftDeoptsExecuted) \
1479 : /* Number of write barriers in generated code. */ \
1480 : SC(write_barriers_dynamic, V8.WriteBarriersDynamic) \
1481 : SC(write_barriers_static, V8.WriteBarriersStatic) \
1482 : SC(new_space_bytes_available, V8.MemoryNewSpaceBytesAvailable) \
1483 : SC(new_space_bytes_committed, V8.MemoryNewSpaceBytesCommitted) \
1484 : SC(new_space_bytes_used, V8.MemoryNewSpaceBytesUsed) \
1485 : SC(old_space_bytes_available, V8.MemoryOldSpaceBytesAvailable) \
1486 : SC(old_space_bytes_committed, V8.MemoryOldSpaceBytesCommitted) \
1487 : SC(old_space_bytes_used, V8.MemoryOldSpaceBytesUsed) \
1488 : SC(code_space_bytes_available, V8.MemoryCodeSpaceBytesAvailable) \
1489 : SC(code_space_bytes_committed, V8.MemoryCodeSpaceBytesCommitted) \
1490 : SC(code_space_bytes_used, V8.MemoryCodeSpaceBytesUsed) \
1491 : SC(map_space_bytes_available, V8.MemoryMapSpaceBytesAvailable) \
1492 : SC(map_space_bytes_committed, V8.MemoryMapSpaceBytesCommitted) \
1493 : SC(map_space_bytes_used, V8.MemoryMapSpaceBytesUsed) \
1494 : SC(lo_space_bytes_available, V8.MemoryLoSpaceBytesAvailable) \
1495 : SC(lo_space_bytes_committed, V8.MemoryLoSpaceBytesCommitted) \
1496 : SC(lo_space_bytes_used, V8.MemoryLoSpaceBytesUsed) \
1497 : /* Total code size (including metadata) of baseline code or bytecode. */ \
1498 : SC(total_baseline_code_size, V8.TotalBaselineCodeSize) \
1499 : /* Total count of functions compiled using the baseline compiler. */ \
1500 : SC(total_baseline_compile_count, V8.TotalBaselineCompileCount)
1501 :
1502 : #define STATS_COUNTER_TS_LIST(SC) \
1503 : SC(wasm_generated_code_size, V8.WasmGeneratedCodeBytes) \
1504 : SC(wasm_reloc_size, V8.WasmRelocBytes) \
1505 : SC(wasm_lazily_compiled_functions, V8.WasmLazilyCompiledFunctions) \
1506 : SC(liftoff_compiled_functions, V8.LiftoffCompiledFunctions) \
1507 : SC(liftoff_unsupported_functions, V8.LiftoffUnsupportedFunctions)
1508 :
1509 : // This file contains all the v8 counters that are in use.
1510 123037 : class Counters : public std::enable_shared_from_this<Counters> {
1511 : public:
1512 : explicit Counters(Isolate* isolate);
1513 :
1514 : // Register an application-defined function for recording
1515 : // subsequent counter statistics. Note: Must be called on the main
1516 : // thread.
1517 : void ResetCounterFunction(CounterLookupCallback f);
1518 :
1519 : // Register an application-defined function to create histograms for
1520 : // recording subsequent histogram samples. Note: Must be called on
1521 : // the main thread.
1522 : void ResetCreateHistogramFunction(CreateHistogramCallback f);
1523 :
1524 : // Register an application-defined function to add a sample
1525 : // to a histogram. Will be used in all subsequent sample additions.
1526 : // Note: Must be called on the main thread.
1527 : void SetAddHistogramSampleFunction(AddHistogramSampleCallback f) {
1528 : stats_table_.SetAddHistogramSampleFunction(f);
1529 : }
1530 :
1531 : #define HR(name, caption, min, max, num_buckets) \
1532 : Histogram* name() { return &name##_; }
1533 4505244 : HISTOGRAM_RANGE_LIST(HR)
1534 : #undef HR
1535 :
1536 : #define HT(name, caption, max, res) \
1537 : HistogramTimer* name() { return &name##_; }
1538 2499491 : HISTOGRAM_TIMER_LIST(HT)
1539 : #undef HT
1540 :
1541 : #define HT(name, caption, max, res) \
1542 : TimedHistogram* name() { return &name##_; }
1543 3086287 : TIMED_HISTOGRAM_LIST(HT)
1544 : #undef HT
1545 :
1546 : #define AHT(name, caption) \
1547 : AggregatableHistogramTimer* name() { return &name##_; }
1548 837174 : AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT)
1549 : #undef AHT
1550 :
1551 : #define HP(name, caption) \
1552 : Histogram* name() { return &name##_; }
1553 398190 : HISTOGRAM_PERCENTAGE_LIST(HP)
1554 : #undef HP
1555 :
1556 : #define HM(name, caption) \
1557 : Histogram* name() { return &name##_; }
1558 474640 : HISTOGRAM_LEGACY_MEMORY_LIST(HM)
1559 : #undef HM
1560 :
1561 : #define SC(name, caption) \
1562 : StatsCounter* name() { return &name##_; }
1563 175142689 : STATS_COUNTER_LIST_1(SC)
1564 27844598 : STATS_COUNTER_LIST_2(SC)
1565 : #undef SC
1566 :
1567 : #define SC(name, caption) \
1568 : StatsCounterThreadSafe* name() { return &name##_; }
1569 3158705 : STATS_COUNTER_TS_LIST(SC)
1570 : #undef SC
1571 :
1572 : // clang-format off
1573 : enum Id {
1574 : #define RATE_ID(name, caption, max, res) k_##name,
1575 : HISTOGRAM_TIMER_LIST(RATE_ID)
1576 : TIMED_HISTOGRAM_LIST(RATE_ID)
1577 : #undef RATE_ID
1578 : #define AGGREGATABLE_ID(name, caption) k_##name,
1579 : AGGREGATABLE_HISTOGRAM_TIMER_LIST(AGGREGATABLE_ID)
1580 : #undef AGGREGATABLE_ID
1581 : #define PERCENTAGE_ID(name, caption) k_##name,
1582 : HISTOGRAM_PERCENTAGE_LIST(PERCENTAGE_ID)
1583 : #undef PERCENTAGE_ID
1584 : #define MEMORY_ID(name, caption) k_##name,
1585 : HISTOGRAM_LEGACY_MEMORY_LIST(MEMORY_ID)
1586 : #undef MEMORY_ID
1587 : #define COUNTER_ID(name, caption) k_##name,
1588 : STATS_COUNTER_LIST_1(COUNTER_ID)
1589 : STATS_COUNTER_LIST_2(COUNTER_ID)
1590 : STATS_COUNTER_TS_LIST(COUNTER_ID)
1591 : #undef COUNTER_ID
1592 : #define COUNTER_ID(name) kCountOf##name, kSizeOf##name,
1593 : INSTANCE_TYPE_LIST(COUNTER_ID)
1594 : #undef COUNTER_ID
1595 : #define COUNTER_ID(name) kCountOfCODE_TYPE_##name, \
1596 : kSizeOfCODE_TYPE_##name,
1597 : CODE_KIND_LIST(COUNTER_ID)
1598 : #undef COUNTER_ID
1599 : #define COUNTER_ID(name) kCountOfFIXED_ARRAY__##name, \
1600 : kSizeOfFIXED_ARRAY__##name,
1601 : FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(COUNTER_ID)
1602 : #undef COUNTER_ID
1603 : stats_counter_count
1604 : };
1605 : // clang-format on
1606 :
1607 3001787 : RuntimeCallStats* runtime_call_stats() { return &runtime_call_stats_; }
1608 :
1609 : WorkerThreadRuntimeCallStats* worker_thread_runtime_call_stats() {
1610 81937 : return &worker_thread_runtime_call_stats_;
1611 : }
1612 :
1613 : private:
1614 : friend class StatsTable;
1615 : friend class StatsCounterBase;
1616 : friend class Histogram;
1617 : friend class HistogramTimer;
1618 :
1619 : Isolate* isolate_;
1620 : StatsTable stats_table_;
1621 :
1622 : int* FindLocation(const char* name) {
1623 : return stats_table_.FindLocation(name);
1624 : }
1625 :
1626 : void* CreateHistogram(const char* name, int min, int max, size_t buckets) {
1627 : return stats_table_.CreateHistogram(name, min, max, buckets);
1628 : }
1629 :
1630 : void AddHistogramSample(void* histogram, int sample) {
1631 : stats_table_.AddHistogramSample(histogram, sample);
1632 : }
1633 :
1634 : Isolate* isolate() { return isolate_; }
1635 :
1636 : #define HR(name, caption, min, max, num_buckets) Histogram name##_;
1637 : HISTOGRAM_RANGE_LIST(HR)
1638 : #undef HR
1639 :
1640 : #define HT(name, caption, max, res) HistogramTimer name##_;
1641 : HISTOGRAM_TIMER_LIST(HT)
1642 : #undef HT
1643 :
1644 : #define HT(name, caption, max, res) TimedHistogram name##_;
1645 : TIMED_HISTOGRAM_LIST(HT)
1646 : #undef HT
1647 :
1648 : #define AHT(name, caption) \
1649 : AggregatableHistogramTimer name##_;
1650 : AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT)
1651 : #undef AHT
1652 :
1653 : #define HP(name, caption) \
1654 : Histogram name##_;
1655 : HISTOGRAM_PERCENTAGE_LIST(HP)
1656 : #undef HP
1657 :
1658 : #define HM(name, caption) \
1659 : Histogram name##_;
1660 : HISTOGRAM_LEGACY_MEMORY_LIST(HM)
1661 : #undef HM
1662 :
1663 : #define SC(name, caption) \
1664 : StatsCounter name##_;
1665 : STATS_COUNTER_LIST_1(SC)
1666 : STATS_COUNTER_LIST_2(SC)
1667 : #undef SC
1668 :
1669 : #define SC(name, caption) StatsCounterThreadSafe name##_;
1670 : STATS_COUNTER_TS_LIST(SC)
1671 : #undef SC
1672 :
1673 : #define SC(name) \
1674 : StatsCounter size_of_##name##_; \
1675 : StatsCounter count_of_##name##_;
1676 : INSTANCE_TYPE_LIST(SC)
1677 : #undef SC
1678 :
1679 : #define SC(name) \
1680 : StatsCounter size_of_CODE_TYPE_##name##_; \
1681 : StatsCounter count_of_CODE_TYPE_##name##_;
1682 : CODE_KIND_LIST(SC)
1683 : #undef SC
1684 :
1685 : #define SC(name) \
1686 : StatsCounter size_of_FIXED_ARRAY_##name##_; \
1687 : StatsCounter count_of_FIXED_ARRAY_##name##_;
1688 : FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)
1689 : #undef SC
1690 :
1691 : RuntimeCallStats runtime_call_stats_;
1692 : WorkerThreadRuntimeCallStats worker_thread_runtime_call_stats_;
1693 :
1694 : DISALLOW_IMPLICIT_CONSTRUCTORS(Counters);
1695 : };
1696 :
1697 : void HistogramTimer::Start() {
1698 2653820 : TimedHistogram::Start(&timer_, counters()->isolate());
1699 : }
1700 :
1701 : void HistogramTimer::Stop() {
1702 2653814 : TimedHistogram::Stop(&timer_, counters()->isolate());
1703 : }
1704 :
1705 152157490 : RuntimeCallTimerScope::RuntimeCallTimerScope(Isolate* isolate,
1706 152157490 : RuntimeCallCounterId counter_id) {
1707 152157490 : if (V8_LIKELY(!TracingFlags::is_runtime_stats_enabled())) return;
1708 19308 : stats_ = isolate->counters()->runtime_call_stats();
1709 19308 : stats_->Enter(&timer_, counter_id);
1710 : }
1711 :
1712 : } // namespace internal
1713 : } // namespace v8
1714 :
1715 : #endif // V8_COUNTERS_H_
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