// Copyright 2012 the V8 project authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

#ifndef V8_COUNTERS_H_

#define V8_COUNTERS_H_

#include "include/v8.h"

#include "src/allocation.h"

#include "src/base/platform/elapsed-timer.h"

#include "src/base/platform/time.h"

#include "src/globals.h"

#include "src/objects.h"

namespace v8 {

namespace internal {

// StatsCounters is an interface for plugging into external

// counters for monitoring. Counters can be looked up and

// manipulated by name.

class StatsTable {

public:

// Register an application-defined function where

// counters can be looked up.

void SetCounterFunction(CounterLookupCallback f) {

lookup_function_ = f;

}

// Register an application-defined function to create

// a histogram for passing to the AddHistogramSample function

void SetCreateHistogramFunction(CreateHistogramCallback f) {

create_histogram_function_ = f;

}

// Register an application-defined function to add a sample

// to a histogram created with CreateHistogram function

void SetAddHistogramSampleFunction(AddHistogramSampleCallback f) {

add_histogram_sample_function_ = f;

}

bool HasCounterFunction() const {

return lookup_function_ != NULL;

}

// Lookup the location of a counter by name. If the lookup

// is successful, returns a non-NULL pointer for writing the

// value of the counter. Each thread calling this function

// may receive a different location to store it's counter.

// The return value must not be cached and re-used across

// threads, although a single thread is free to cache it.

int* FindLocation(const char* name) {

if (!lookup_function_) return NULL;

return lookup_function_(name);

}

// Create a histogram by name. If the create is successful,

// returns a non-NULL pointer for use with AddHistogramSample

// function. min and max define the expected minimum and maximum

// sample values. buckets is the maximum number of buckets

// that the samples will be grouped into.

void* CreateHistogram(const char* name,

int min,

int max,

size_t buckets) {

if (!create_histogram_function_) return NULL;

return create_histogram_function_(name, min, max, buckets);

}

// Add a sample to a histogram created with the CreateHistogram

// function.

void AddHistogramSample(void* histogram, int sample) {

if (!add_histogram_sample_function_) return;

return add_histogram_sample_function_(histogram, sample);

}

private:

StatsTable();

CounterLookupCallback lookup_function_;

CreateHistogramCallback create_histogram_function_;

AddHistogramSampleCallback add_histogram_sample_function_;

friend class Isolate;

DISALLOW_COPY_AND_ASSIGN(StatsTable);

};

// StatsCounters are dynamically created values which can be tracked in

// the StatsTable. They are designed to be lightweight to create and

// easy to use.

//

// Internally, a counter represents a value in a row of a StatsTable.

// The row has a 32bit value for each process/thread in the table and also

// a name (stored in the table metadata). Since the storage location can be

// thread-specific, this class cannot be shared across threads.

class StatsCounter {

public:

StatsCounter() { }

explicit StatsCounter(Isolate* isolate, const char* name)

: isolate_(isolate), name_(name), ptr_(NULL), lookup_done_(false) { }

// Sets the counter to a specific value.

void Set(int value) {

int* loc = GetPtr();

if (loc) *loc = value;

}

// Increments the counter.

void Increment() {

int* loc = GetPtr();

if (loc) (*loc)++;

}

void Increment(int value) {

int* loc = GetPtr();

if (loc)

(*loc) += value;

}

// Decrements the counter.

void Decrement() {

int* loc = GetPtr();

if (loc) (*loc)--;

}

void Decrement(int value) {

int* loc = GetPtr();

if (loc) (*loc) -= value;

}

// Is this counter enabled?

// Returns false if table is full.

bool Enabled() {

return GetPtr() != NULL;

}

// Get the internal pointer to the counter. This is used

// by the code generator to emit code that manipulates a

// given counter without calling the runtime system.

int* GetInternalPointer() {

int* loc = GetPtr();

DCHECK(loc != NULL);

return loc;

}

// Reset the cached internal pointer.

void Reset() { lookup_done_ = false; }

protected:

// Returns the cached address of this counter location.

int* GetPtr() {

if (lookup_done_) return ptr_;

lookup_done_ = true;

ptr_ = FindLocationInStatsTable();

return ptr_;

}

private:

int* FindLocationInStatsTable() const;

Isolate* isolate_;

const char* name_;

int* ptr_;

bool lookup_done_;

};

// A Histogram represents a dynamically created histogram in the StatsTable.

// It will be registered with the histogram system on first use.

class Histogram {

public:

Histogram() { }

Histogram(const char* name,

int min,

int max,

int num_buckets,

Isolate* isolate)

: name_(name),

min_(min),

max_(max),

num_buckets_(num_buckets),

histogram_(NULL),

lookup_done_(false),

isolate_(isolate) { }

// Add a single sample to this histogram.

void AddSample(int sample);

// Returns true if this histogram is enabled.

bool Enabled() {

return GetHistogram() != NULL;

}

// Reset the cached internal pointer.

void Reset() {

lookup_done_ = false;

}

protected:

// Returns the handle to the histogram.

void* GetHistogram() {

if (!lookup_done_) {

lookup_done_ = true;

histogram_ = CreateHistogram();

}

return histogram_;

}

const char* name() { return name_; }

Isolate* isolate() const { return isolate_; }

private:

void* CreateHistogram() const;

const char* name_;

int min_;

int max_;

int num_buckets_;

void* histogram_;

bool lookup_done_;

Isolate* isolate_;

};

// A HistogramTimer allows distributions of results to be created.

class HistogramTimer : public Histogram {

public:

enum Resolution {

MILLISECOND,

MICROSECOND

};

HistogramTimer() {}

HistogramTimer(const char* name, int min, int max, Resolution resolution,

int num_buckets, Isolate* isolate)

: Histogram(name, min, max, num_buckets, isolate),

resolution_(resolution) {}

// Start the timer.

void Start();

// Stop the timer and record the results.

void Stop();

// Returns true if the timer is running.

bool Running() {

return Enabled() && timer_.IsStarted();

}

// TODO(bmeurer): Remove this when HistogramTimerScope is fixed.

#ifdef DEBUG

base::ElapsedTimer* timer() { return &timer_; }

#endif

private:

base::ElapsedTimer timer_;

Resolution resolution_;

};

// Helper class for scoping a HistogramTimer.

// TODO(bmeurer): The ifdeffery is an ugly hack around the fact that the

// Parser is currently reentrant (when it throws an error, we call back

// into JavaScript and all bets are off), but ElapsedTimer is not

// reentry-safe. Fix this properly and remove |allow_nesting|.

class HistogramTimerScope BASE_EMBEDDED {

public:

explicit HistogramTimerScope(HistogramTimer* timer,

bool allow_nesting = false)

#ifdef DEBUG

: timer_(timer),

skipped_timer_start_(false) {

if (timer_->timer()->IsStarted() && allow_nesting) {

skipped_timer_start_ = true;

} else {

timer_->Start();

}

}

#else

: timer_(timer) {

timer_->Start();

}

#endif

~HistogramTimerScope() {

#ifdef DEBUG

if (!skipped_timer_start_) {

timer_->Stop();

}

#else

timer_->Stop();

#endif

}

private:

HistogramTimer* timer_;

#ifdef DEBUG

bool skipped_timer_start_;

#endif

};

// A histogram timer that can aggregate events within a larger scope.

//

// Intended use of this timer is to have an outer (aggregating) and an inner

// (to be aggregated) scope, where the inner scope measure the time of events,

// and all those inner scope measurements will be summed up by the outer scope.

// An example use might be to aggregate the time spent in lazy compilation

// while running a script.

//

// Helpers:

// - AggregatingHistogramTimerScope, the "outer" scope within which

// times will be summed up.

// - AggregatedHistogramTimerScope, the "inner" scope which defines the

// events to be timed.

class AggregatableHistogramTimer : public Histogram {

public:

AggregatableHistogramTimer() {}

AggregatableHistogramTimer(const char* name, int min, int max,

int num_buckets, Isolate* isolate)

: Histogram(name, min, max, num_buckets, isolate) {}

// Start/stop the "outer" scope.

void Start() { time_ = base::TimeDelta(); }

void Stop() { AddSample(static_cast<int>(time_.InMicroseconds())); }

// Add a time value ("inner" scope).

void Add(base::TimeDelta other) { time_ += other; }

private:

base::TimeDelta time_;

};

// A helper class for use with AggregatableHistogramTimer.

class AggregatingHistogramTimerScope {

public:

explicit AggregatingHistogramTimerScope(AggregatableHistogramTimer* histogram)

: histogram_(histogram) {

histogram_->Start();

}

~AggregatingHistogramTimerScope() { histogram_->Stop(); }

private:

AggregatableHistogramTimer* histogram_;

};

// A helper class for use with AggregatableHistogramTimer.

class AggregatedHistogramTimerScope {

public:

explicit AggregatedHistogramTimerScope(AggregatableHistogramTimer* histogram)

: histogram_(histogram) {

timer_.Start();

}

~AggregatedHistogramTimerScope() { histogram_->Add(timer_.Elapsed()); }

private:

base::ElapsedTimer timer_;

AggregatableHistogramTimer* histogram_;

};

#define HISTOGRAM_RANGE_LIST(HR) \

/* Generic range histograms */ \

HR(detached_context_age_in_gc, V8.DetachedContextAgeInGC, 0, 20, 21) \

HR(gc_idle_time_allotted_in_ms, V8.GCIdleTimeAllottedInMS, 0, 10000, 101) \

HR(gc_idle_time_limit_overshot, V8.GCIdleTimeLimit.Overshot, 0, 10000, 101) \

HR(gc_idle_time_limit_undershot, V8.GCIdleTimeLimit.Undershot, 0, 10000, \

101) \

HR(code_cache_reject_reason, V8.CodeCacheRejectReason, 1, 6, 6)

#define HISTOGRAM_TIMER_LIST(HT) \

/* Garbage collection timers. */ \

HT(gc_compactor, V8.GCCompactor, 10000, MILLISECOND) \

HT(gc_scavenger, V8.GCScavenger, 10000, MILLISECOND) \

HT(gc_context, V8.GCContext, 10000, \

MILLISECOND) /* GC context cleanup time */ \

HT(gc_idle_notification, V8.GCIdleNotification, 10000, MILLISECOND) \

HT(gc_incremental_marking, V8.GCIncrementalMarking, 10000, MILLISECOND) \

HT(gc_low_memory_notification, V8.GCLowMemoryNotification, 10000, \

MILLISECOND) \

/* Parsing timers. */ \

HT(parse, V8.ParseMicroSeconds, 1000000, MICROSECOND) \

HT(parse_lazy, V8.ParseLazyMicroSeconds, 1000000, MICROSECOND) \

HT(pre_parse, V8.PreParseMicroSeconds, 1000000, MICROSECOND) \

/* Compilation times. */ \

HT(compile, V8.CompileMicroSeconds, 1000000, MICROSECOND) \

HT(compile_eval, V8.CompileEvalMicroSeconds, 1000000, MICROSECOND) \

/* Serialization as part of compilation (code caching) */ \

HT(compile_serialize, V8.CompileSerializeMicroSeconds, 100000, MICROSECOND) \

HT(compile_deserialize, V8.CompileDeserializeMicroSeconds, 1000000, \

MICROSECOND) \

/* Total compilation time incl. caching/parsing */ \

HT(compile_script, V8.CompileScriptMicroSeconds, 1000000, MICROSECOND)

#define AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) \

AHT(compile_lazy, V8.CompileLazyMicroSeconds)

#define HISTOGRAM_PERCENTAGE_LIST(HP) \

/* Heap fragmentation. */ \

HP(external_fragmentation_total, \

V8.MemoryExternalFragmentationTotal) \

HP(external_fragmentation_old_pointer_space, \

V8.MemoryExternalFragmentationOldPointerSpace) \

HP(external_fragmentation_old_data_space, \

V8.MemoryExternalFragmentationOldDataSpace) \

HP(external_fragmentation_code_space, \

V8.MemoryExternalFragmentationCodeSpace) \

HP(external_fragmentation_map_space, \

V8.MemoryExternalFragmentationMapSpace) \

HP(external_fragmentation_cell_space, \

V8.MemoryExternalFragmentationCellSpace) \

HP(external_fragmentation_property_cell_space, \

V8.MemoryExternalFragmentationPropertyCellSpace) \

HP(external_fragmentation_lo_space, \

V8.MemoryExternalFragmentationLoSpace) \

/* Percentages of heap committed to each space. */ \

HP(heap_fraction_new_space, \

V8.MemoryHeapFractionNewSpace) \

HP(heap_fraction_old_pointer_space, \

V8.MemoryHeapFractionOldPointerSpace) \

HP(heap_fraction_old_data_space, \

V8.MemoryHeapFractionOldDataSpace) \

HP(heap_fraction_code_space, \

V8.MemoryHeapFractionCodeSpace) \

HP(heap_fraction_map_space, \

V8.MemoryHeapFractionMapSpace) \

HP(heap_fraction_cell_space, \

V8.MemoryHeapFractionCellSpace) \

HP(heap_fraction_property_cell_space, \

V8.MemoryHeapFractionPropertyCellSpace) \

HP(heap_fraction_lo_space, \

V8.MemoryHeapFractionLoSpace) \

/* Percentage of crankshafted codegen. */ \

HP(codegen_fraction_crankshaft, \

V8.CodegenFractionCrankshaft) \

#define HISTOGRAM_MEMORY_LIST(HM) \

HM(heap_sample_total_committed, V8.MemoryHeapSampleTotalCommitted) \

HM(heap_sample_total_used, V8.MemoryHeapSampleTotalUsed) \

HM(heap_sample_map_space_committed, \

V8.MemoryHeapSampleMapSpaceCommitted) \

HM(heap_sample_cell_space_committed, \

V8.MemoryHeapSampleCellSpaceCommitted) \

HM(heap_sample_property_cell_space_committed, \

V8.MemoryHeapSamplePropertyCellSpaceCommitted) \

HM(heap_sample_code_space_committed, \

V8.MemoryHeapSampleCodeSpaceCommitted) \

HM(heap_sample_maximum_committed, \

V8.MemoryHeapSampleMaximumCommitted) \

// WARNING: STATS_COUNTER_LIST_* is a very large macro that is causing MSVC

// Intellisense to crash. It was broken into two macros (each of length 40

// lines) rather than one macro (of length about 80 lines) to work around

// this problem. Please avoid using recursive macros of this length when

// possible.

#define STATS_COUNTER_LIST_1(SC) \

/* Global Handle Count*/ \

SC(global_handles, V8.GlobalHandles) \

/* OS Memory allocated */ \

SC(memory_allocated, V8.OsMemoryAllocated) \

SC(normalized_maps, V8.NormalizedMaps) \

SC(props_to_dictionary, V8.ObjectPropertiesToDictionary) \

SC(elements_to_dictionary, V8.ObjectElementsToDictionary) \

SC(alive_after_last_gc, V8.AliveAfterLastGC) \

SC(objs_since_last_young, V8.ObjsSinceLastYoung) \

SC(objs_since_last_full, V8.ObjsSinceLastFull) \

SC(string_table_capacity, V8.StringTableCapacity) \

SC(number_of_symbols, V8.NumberOfSymbols) \

SC(script_wrappers, V8.ScriptWrappers) \

SC(call_initialize_stubs, V8.CallInitializeStubs) \

SC(call_premonomorphic_stubs, V8.CallPreMonomorphicStubs) \

SC(call_normal_stubs, V8.CallNormalStubs) \

SC(call_megamorphic_stubs, V8.CallMegamorphicStubs) \

SC(inlined_copied_elements, V8.InlinedCopiedElements) \

SC(arguments_adaptors, V8.ArgumentsAdaptors) \

SC(compilation_cache_hits, V8.CompilationCacheHits) \

SC(compilation_cache_misses, V8.CompilationCacheMisses) \

SC(string_ctor_calls, V8.StringConstructorCalls) \

SC(string_ctor_conversions, V8.StringConstructorConversions) \

SC(string_ctor_cached_number, V8.StringConstructorCachedNumber) \

SC(string_ctor_string_value, V8.StringConstructorStringValue) \

SC(string_ctor_gc_required, V8.StringConstructorGCRequired) \

/* Amount of evaled source code. */ \

SC(total_eval_size, V8.TotalEvalSize) \

/* Amount of loaded source code. */ \

SC(total_load_size, V8.TotalLoadSize) \

/* Amount of parsed source code. */ \

SC(total_parse_size, V8.TotalParseSize) \

/* Amount of source code skipped over using preparsing. */ \

SC(total_preparse_skipped, V8.TotalPreparseSkipped) \

/* Number of symbol lookups skipped using preparsing */ \

SC(total_preparse_symbols_skipped, V8.TotalPreparseSymbolSkipped) \

/* Amount of compiled source code. */ \

SC(total_compile_size, V8.TotalCompileSize) \

/* Amount of source code compiled with the full codegen. */ \

SC(total_full_codegen_source_size, V8.TotalFullCodegenSourceSize) \

/* Number of contexts created from scratch. */ \

SC(contexts_created_from_scratch, V8.ContextsCreatedFromScratch) \

/* Number of contexts created by partial snapshot. */ \

SC(contexts_created_by_snapshot, V8.ContextsCreatedBySnapshot) \

/* Number of code objects found from pc. */ \

SC(pc_to_code, V8.PcToCode) \

SC(pc_to_code_cached, V8.PcToCodeCached) \

/* The store-buffer implementation of the write barrier. */ \

SC(store_buffer_compactions, V8.StoreBufferCompactions) \

SC(store_buffer_overflows, V8.StoreBufferOverflows)

#define STATS_COUNTER_LIST_2(SC) \

/* Number of code stubs. */ \

SC(code_stubs, V8.CodeStubs) \

/* Amount of stub code. */ \

SC(total_stubs_code_size, V8.TotalStubsCodeSize) \

/* Amount of (JS) compiled code. */ \

SC(total_compiled_code_size, V8.TotalCompiledCodeSize) \

SC(gc_compactor_caused_by_request, V8.GCCompactorCausedByRequest) \

SC(gc_compactor_caused_by_promoted_data, V8.GCCompactorCausedByPromotedData) \

SC(gc_compactor_caused_by_oldspace_exhaustion, \

V8.GCCompactorCausedByOldspaceExhaustion) \

SC(gc_last_resort_from_js, V8.GCLastResortFromJS) \

SC(gc_last_resort_from_handles, V8.GCLastResortFromHandles) \

/* How is the generic keyed-load stub used? */ \

SC(keyed_load_generic_smi, V8.KeyedLoadGenericSmi) \

SC(keyed_load_generic_symbol, V8.KeyedLoadGenericSymbol) \

SC(keyed_load_generic_lookup_cache, V8.KeyedLoadGenericLookupCache) \

SC(keyed_load_generic_slow, V8.KeyedLoadGenericSlow) \

SC(keyed_load_polymorphic_stubs, V8.KeyedLoadPolymorphicStubs) \

SC(keyed_load_external_array_slow, V8.KeyedLoadExternalArraySlow) \

/* How is the generic keyed-call stub used? */ \

SC(keyed_call_generic_smi_fast, V8.KeyedCallGenericSmiFast) \

SC(keyed_call_generic_smi_dict, V8.KeyedCallGenericSmiDict) \

SC(keyed_call_generic_lookup_cache, V8.KeyedCallGenericLookupCache) \

SC(keyed_call_generic_lookup_dict, V8.KeyedCallGenericLookupDict) \

SC(keyed_call_generic_slow, V8.KeyedCallGenericSlow) \

SC(keyed_call_generic_slow_load, V8.KeyedCallGenericSlowLoad) \

SC(named_load_global_stub, V8.NamedLoadGlobalStub) \

SC(named_store_global_inline, V8.NamedStoreGlobalInline) \

SC(named_store_global_inline_miss, V8.NamedStoreGlobalInlineMiss) \

SC(keyed_store_polymorphic_stubs, V8.KeyedStorePolymorphicStubs) \

SC(keyed_store_external_array_slow, V8.KeyedStoreExternalArraySlow) \

SC(store_normal_miss, V8.StoreNormalMiss) \

SC(store_normal_hit, V8.StoreNormalHit) \

SC(cow_arrays_created_stub, V8.COWArraysCreatedStub) \

SC(cow_arrays_created_runtime, V8.COWArraysCreatedRuntime) \

SC(cow_arrays_converted, V8.COWArraysConverted) \

SC(call_miss, V8.CallMiss) \

SC(keyed_call_miss, V8.KeyedCallMiss) \

SC(load_miss, V8.LoadMiss) \

SC(keyed_load_miss, V8.KeyedLoadMiss) \

SC(call_const, V8.CallConst) \

SC(call_const_fast_api, V8.CallConstFastApi) \

SC(call_const_interceptor, V8.CallConstInterceptor) \

SC(call_const_interceptor_fast_api, V8.CallConstInterceptorFastApi) \

SC(call_global_inline, V8.CallGlobalInline) \

SC(call_global_inline_miss, V8.CallGlobalInlineMiss) \

SC(constructed_objects, V8.ConstructedObjects) \

SC(constructed_objects_runtime, V8.ConstructedObjectsRuntime) \

SC(negative_lookups, V8.NegativeLookups) \

SC(negative_lookups_miss, V8.NegativeLookupsMiss) \

SC(megamorphic_stub_cache_probes, V8.MegamorphicStubCacheProbes) \

SC(megamorphic_stub_cache_misses, V8.MegamorphicStubCacheMisses) \

SC(megamorphic_stub_cache_updates, V8.MegamorphicStubCacheUpdates) \

SC(array_function_runtime, V8.ArrayFunctionRuntime) \

SC(array_function_native, V8.ArrayFunctionNative) \

SC(for_in, V8.ForIn) \

SC(enum_cache_hits, V8.EnumCacheHits) \

SC(enum_cache_misses, V8.EnumCacheMisses) \

SC(fast_new_closure_total, V8.FastNewClosureTotal) \

SC(fast_new_closure_try_optimized, V8.FastNewClosureTryOptimized) \

SC(fast_new_closure_install_optimized, V8.FastNewClosureInstallOptimized) \

SC(string_add_runtime, V8.StringAddRuntime) \

SC(string_add_native, V8.StringAddNative) \

SC(string_add_runtime_ext_to_one_byte, V8.StringAddRuntimeExtToOneByte) \

SC(sub_string_runtime, V8.SubStringRuntime) \

SC(sub_string_native, V8.SubStringNative) \

SC(string_add_make_two_char, V8.StringAddMakeTwoChar) \

SC(string_compare_native, V8.StringCompareNative) \

SC(string_compare_runtime, V8.StringCompareRuntime) \

SC(regexp_entry_runtime, V8.RegExpEntryRuntime) \

SC(regexp_entry_native, V8.RegExpEntryNative) \

SC(number_to_string_native, V8.NumberToStringNative) \

SC(number_to_string_runtime, V8.NumberToStringRuntime) \

SC(math_acos, V8.MathAcos) \

SC(math_asin, V8.MathAsin) \

SC(math_atan, V8.MathAtan) \

SC(math_atan2, V8.MathAtan2) \

SC(math_exp, V8.MathExp) \

SC(math_floor, V8.MathFloor) \

SC(math_log, V8.MathLog) \

SC(math_pow, V8.MathPow) \

SC(math_round, V8.MathRound) \

SC(math_sqrt, V8.MathSqrt) \

SC(stack_interrupts, V8.StackInterrupts) \

SC(runtime_profiler_ticks, V8.RuntimeProfilerTicks) \

SC(bounds_checks_eliminated, V8.BoundsChecksEliminated) \

SC(bounds_checks_hoisted, V8.BoundsChecksHoisted) \

SC(soft_deopts_requested, V8.SoftDeoptsRequested) \

SC(soft_deopts_inserted, V8.SoftDeoptsInserted) \

SC(soft_deopts_executed, V8.SoftDeoptsExecuted) \

/* Number of write barriers in generated code. */ \

SC(write_barriers_dynamic, V8.WriteBarriersDynamic) \

SC(write_barriers_static, V8.WriteBarriersStatic) \

SC(new_space_bytes_available, V8.MemoryNewSpaceBytesAvailable) \

SC(new_space_bytes_committed, V8.MemoryNewSpaceBytesCommitted) \

SC(new_space_bytes_used, V8.MemoryNewSpaceBytesUsed) \

SC(old_pointer_space_bytes_available, \

V8.MemoryOldPointerSpaceBytesAvailable) \

SC(old_pointer_space_bytes_committed, \

V8.MemoryOldPointerSpaceBytesCommitted) \

SC(old_pointer_space_bytes_used, V8.MemoryOldPointerSpaceBytesUsed) \

SC(old_data_space_bytes_available, V8.MemoryOldDataSpaceBytesAvailable) \

SC(old_data_space_bytes_committed, V8.MemoryOldDataSpaceBytesCommitted) \

SC(old_data_space_bytes_used, V8.MemoryOldDataSpaceBytesUsed) \

SC(code_space_bytes_available, V8.MemoryCodeSpaceBytesAvailable) \

SC(code_space_bytes_committed, V8.MemoryCodeSpaceBytesCommitted) \

SC(code_space_bytes_used, V8.MemoryCodeSpaceBytesUsed) \

SC(map_space_bytes_available, V8.MemoryMapSpaceBytesAvailable) \

SC(map_space_bytes_committed, V8.MemoryMapSpaceBytesCommitted) \

SC(map_space_bytes_used, V8.MemoryMapSpaceBytesUsed) \

SC(cell_space_bytes_available, V8.MemoryCellSpaceBytesAvailable) \

SC(cell_space_bytes_committed, V8.MemoryCellSpaceBytesCommitted) \

SC(cell_space_bytes_used, V8.MemoryCellSpaceBytesUsed) \

SC(property_cell_space_bytes_available, \

V8.MemoryPropertyCellSpaceBytesAvailable) \

SC(property_cell_space_bytes_committed, \

V8.MemoryPropertyCellSpaceBytesCommitted) \

SC(property_cell_space_bytes_used, V8.MemoryPropertyCellSpaceBytesUsed) \

SC(lo_space_bytes_available, V8.MemoryLoSpaceBytesAvailable) \

SC(lo_space_bytes_committed, V8.MemoryLoSpaceBytesCommitted) \

SC(lo_space_bytes_used, V8.MemoryLoSpaceBytesUsed)

// This file contains all the v8 counters that are in use.

class Counters {

public:

#define HR(name, caption, min, max, num_buckets) \

Histogram* name() { return &name##_; }

HISTOGRAM_RANGE_LIST(HR)

#undef HR

#define HT(name, caption, max, res) \

HistogramTimer* name() { return &name##_; }

HISTOGRAM_TIMER_LIST(HT)

#undef HT

#define AHT(name, caption) \

AggregatableHistogramTimer* name() { return &name##_; }

AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT)

#undef AHT

#define HP(name, caption) \

Histogram* name() { return &name##_; }

HISTOGRAM_PERCENTAGE_LIST(HP)

#undef HP

#define HM(name, caption) \

Histogram* name() { return &name##_; }

HISTOGRAM_MEMORY_LIST(HM)

#undef HM

#define SC(name, caption) \

StatsCounter* name() { return &name##_; }

STATS_COUNTER_LIST_1(SC)

STATS_COUNTER_LIST_2(SC)

#undef SC

#define SC(name) \

StatsCounter* count_of_##name() { return &count_of_##name##_; } \

StatsCounter* size_of_##name() { return &size_of_##name##_; }

INSTANCE_TYPE_LIST(SC)

#undef SC

#define SC(name) \

StatsCounter* count_of_CODE_TYPE_##name() \

{ return &count_of_CODE_TYPE_##name##_; } \

StatsCounter* size_of_CODE_TYPE_##name() \

{ return &size_of_CODE_TYPE_##name##_; }

CODE_KIND_LIST(SC)

#undef SC

#define SC(name) \

StatsCounter* count_of_FIXED_ARRAY_##name() \

{ return &count_of_FIXED_ARRAY_##name##_; } \

StatsCounter* size_of_FIXED_ARRAY_##name() \

{ return &size_of_FIXED_ARRAY_##name##_; }

FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)

#undef SC

#define SC(name) \

StatsCounter* count_of_CODE_AGE_##name() \

{ return &count_of_CODE_AGE_##name##_; } \

StatsCounter* size_of_CODE_AGE_##name() \

{ return &size_of_CODE_AGE_##name##_; }

CODE_AGE_LIST_COMPLETE(SC)

#undef SC

enum Id {

#define RATE_ID(name, caption, max, res) k_##name,

HISTOGRAM_TIMER_LIST(RATE_ID)

#undef RATE_ID

#define AGGREGATABLE_ID(name, caption) k_##name,

AGGREGATABLE_HISTOGRAM_TIMER_LIST(AGGREGATABLE_ID)

#undef AGGREGATABLE_ID

#define PERCENTAGE_ID(name, caption) k_##name,

HISTOGRAM_PERCENTAGE_LIST(PERCENTAGE_ID)

#undef PERCENTAGE_ID

#define MEMORY_ID(name, caption) k_##name,

HISTOGRAM_MEMORY_LIST(MEMORY_ID)

#undef MEMORY_ID

#define COUNTER_ID(name, caption) k_##name,

STATS_COUNTER_LIST_1(COUNTER_ID)

STATS_COUNTER_LIST_2(COUNTER_ID)

#undef COUNTER_ID

#define COUNTER_ID(name) kCountOf##name, kSizeOf##name,

INSTANCE_TYPE_LIST(COUNTER_ID)

#undef COUNTER_ID

#define COUNTER_ID(name) kCountOfCODE_TYPE_##name, \

kSizeOfCODE_TYPE_##name,

CODE_KIND_LIST(COUNTER_ID)

#undef COUNTER_ID

#define COUNTER_ID(name) kCountOfFIXED_ARRAY__##name, \

kSizeOfFIXED_ARRAY__##name,

FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(COUNTER_ID)

#undef COUNTER_ID

#define COUNTER_ID(name) kCountOfCODE_AGE__##name, \

kSizeOfCODE_AGE__##name,

CODE_AGE_LIST_COMPLETE(COUNTER_ID)

#undef COUNTER_ID

stats_counter_count

};

void ResetCounters();

void ResetHistograms();

private:

#define HR(name, caption, min, max, num_buckets) Histogram name##_;

HISTOGRAM_RANGE_LIST(HR)

#undef HR

#define HT(name, caption, max, res) HistogramTimer name##_;

HISTOGRAM_TIMER_LIST(HT)

#undef HT

#define AHT(name, caption) \

AggregatableHistogramTimer name##_;

AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT)

#undef AHT

#define HP(name, caption) \

Histogram name##_;

HISTOGRAM_PERCENTAGE_LIST(HP)

#undef HP

#define HM(name, caption) \

Histogram name##_;

HISTOGRAM_MEMORY_LIST(HM)

#undef HM

#define SC(name, caption) \

StatsCounter name##_;

STATS_COUNTER_LIST_1(SC)

STATS_COUNTER_LIST_2(SC)

#undef SC

#define SC(name) \

StatsCounter size_of_##name##_; \

StatsCounter count_of_##name##_;

INSTANCE_TYPE_LIST(SC)

#undef SC

#define SC(name) \

StatsCounter size_of_CODE_TYPE_##name##_; \

StatsCounter count_of_CODE_TYPE_##name##_;

CODE_KIND_LIST(SC)

#undef SC

#define SC(name) \

StatsCounter size_of_FIXED_ARRAY_##name##_; \

StatsCounter count_of_FIXED_ARRAY_##name##_;

FIXED_ARRAY_SUB_INSTANCE_TYPE_LIST(SC)

#undef SC

#define SC(name) \

StatsCounter size_of_CODE_AGE_##name##_; \

StatsCounter count_of_CODE_AGE_##name##_;

CODE_AGE_LIST_COMPLETE(SC)

#undef SC

friend class Isolate;

explicit Counters(Isolate* isolate);

DISALLOW_IMPLICIT_CONSTRUCTORS(Counters);

};

} } // namespace v8::internal

#endif // V8_COUNTERS_H_