blob: 93df3358989a958639c653da64a9b11629d0f76e [file] [log] [blame]
// 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.
#include "src/extensions/statistics-extension.h"
#include "include/v8-template.h"
#include "src/common/assert-scope.h"
#include "src/execution/isolate.h"
#include "src/heap/heap-inl.h" // crbug.com/v8/8499
#include "src/logging/counters.h"
#include "src/objects/tagged.h"
#include "src/roots/roots.h"
namespace v8 {
namespace internal {
const char* const StatisticsExtension::kSource =
"native function getV8Statistics();";
v8::Local<v8::FunctionTemplate> StatisticsExtension::GetNativeFunctionTemplate(
v8::Isolate* isolate, v8::Local<v8::String> str) {
DCHECK_EQ(strcmp(*v8::String::Utf8Value(isolate, str), "getV8Statistics"), 0);
return v8::FunctionTemplate::New(isolate, StatisticsExtension::GetCounters);
}
static void AddCounter(v8::Isolate* isolate,
v8::Local<v8::Object> object,
StatsCounter* counter,
const char* name) {
if (counter->Enabled()) {
object
->Set(isolate->GetCurrentContext(),
v8::String::NewFromUtf8(isolate, name).ToLocalChecked(),
v8::Number::New(isolate, *counter->GetInternalPointer()))
.FromJust();
}
}
static void AddNumber(v8::Isolate* isolate, v8::Local<v8::Object> object,
double value, const char* name) {
object
->Set(isolate->GetCurrentContext(),
v8::String::NewFromUtf8(isolate, name).ToLocalChecked(),
v8::Number::New(isolate, value))
.FromJust();
}
static void AddNumber64(v8::Isolate* isolate,
v8::Local<v8::Object> object,
int64_t value,
const char* name) {
object
->Set(isolate->GetCurrentContext(),
v8::String::NewFromUtf8(isolate, name).ToLocalChecked(),
v8::Number::New(isolate, static_cast<double>(value)))
.FromJust();
}
void StatisticsExtension::GetCounters(
const v8::FunctionCallbackInfo<v8::Value>& info) {
DCHECK(ValidateCallbackInfo(info));
Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
Heap* heap = isolate->heap();
if (info.Length() > 0) { // GC if first argument evaluates to true.
if (info[0]->IsBoolean() && info[0]->BooleanValue(info.GetIsolate())) {
heap->CollectAllGarbage(GCFlag::kNoFlags,
GarbageCollectionReason::kCountersExtension);
}
}
Counters* counters = isolate->counters();
v8::Local<v8::Object> result = v8::Object::New(info.GetIsolate());
heap->FreeMainThreadLinearAllocationAreas();
struct StatisticsCounter {
v8::internal::StatsCounter* counter;
const char* name;
};
// clang-format off
const StatisticsCounter counter_list[] = {
#define ADD_COUNTER(name, caption) {counters->name(), #name},
STATS_COUNTER_LIST(ADD_COUNTER)
STATS_COUNTER_NATIVE_CODE_LIST(ADD_COUNTER)
#undef ADD_COUNTER
}; // End counter_list array.
// clang-format on
for (size_t i = 0; i < arraysize(counter_list); i++) {
AddCounter(info.GetIsolate(), result, counter_list[i].counter,
counter_list[i].name);
}
struct StatisticNumber {
size_t number;
const char* name;
};
size_t new_space_size = 0;
size_t new_space_available = 0;
size_t new_space_committed_memory = 0;
if (heap->new_space()) {
new_space_size = heap->new_space()->Size();
new_space_available = heap->new_space()->Available();
new_space_committed_memory = heap->new_space()->CommittedMemory();
}
const StatisticNumber numbers[] = {
{heap->memory_allocator()->Size(), "total_committed_bytes"},
{new_space_size, "new_space_live_bytes"},
{new_space_available, "new_space_available_bytes"},
{new_space_committed_memory, "new_space_commited_bytes"},
{heap->old_space()->Size(), "old_space_live_bytes"},
{heap->old_space()->Available(), "old_space_available_bytes"},
{heap->old_space()->CommittedMemory(), "old_space_commited_bytes"},
{heap->code_space()->Size(), "code_space_live_bytes"},
{heap->code_space()->Available(), "code_space_available_bytes"},
{heap->code_space()->CommittedMemory(), "code_space_commited_bytes"},
{heap->lo_space()->Size(), "lo_space_live_bytes"},
{heap->lo_space()->Available(), "lo_space_available_bytes"},
{heap->lo_space()->CommittedMemory(), "lo_space_commited_bytes"},
{heap->code_lo_space()->Size(), "code_lo_space_live_bytes"},
{heap->code_lo_space()->Available(), "code_lo_space_available_bytes"},
{heap->code_lo_space()->CommittedMemory(),
"code_lo_space_commited_bytes"},
{heap->trusted_space()->Size(), "trusted_space_live_bytes"},
{heap->trusted_space()->Available(), "trusted_space_available_bytes"},
{heap->trusted_space()->CommittedMemory(),
"trusted_space_commited_bytes"},
{heap->trusted_lo_space()->Size(), "trusted_lo_space_live_bytes"},
{heap->trusted_lo_space()->Available(),
"trusted_lo_space_available_bytes"},
{heap->trusted_lo_space()->CommittedMemory(),
"trusted_lo_space_commited_bytes"},
};
for (size_t i = 0; i < arraysize(numbers); i++) {
AddNumber(info.GetIsolate(), result, numbers[i].number, numbers[i].name);
}
AddNumber64(info.GetIsolate(), result, heap->external_memory(),
"amount_of_external_allocated_memory");
int reloc_info_total = 0;
int source_position_table_total = 0;
{
HeapObjectIterator iterator(
reinterpret_cast<Isolate*>(info.GetIsolate())->heap());
DCHECK(!AllowGarbageCollection::IsAllowed());
for (Tagged<HeapObject> obj = iterator.Next(); !obj.is_null();
obj = iterator.Next()) {
Tagged<Object> maybe_source_positions;
if (IsCode(obj)) {
Tagged<Code> code = Code::cast(obj);
reloc_info_total += code->relocation_size();
if (!code->has_source_position_table()) continue;
maybe_source_positions = code->source_position_table();
} else if (IsBytecodeArray(obj)) {
maybe_source_positions =
BytecodeArray::cast(obj)->raw_source_position_table(kAcquireLoad);
} else {
continue;
}
if (!IsTrustedByteArray(maybe_source_positions)) continue;
Tagged<TrustedByteArray> source_positions =
TrustedByteArray::cast(maybe_source_positions);
if (source_positions->length() == 0) continue;
source_position_table_total += source_positions->AllocatedSize();
}
}
AddNumber(info.GetIsolate(), result, reloc_info_total,
"reloc_info_total_size");
AddNumber(info.GetIsolate(), result, source_position_table_total,
"source_position_table_total_size");
info.GetReturnValue().Set(result);
}
} // namespace internal
} // namespace v8