f2f-streams3-big-prof

Statistical profiling result from isolate-f2f-streams3-v8.log, (203588 ticks, 1590 unaccounted, 0 excluded).

 [Shared libraries]:
   ticks  total  nonlib   name
   1605    0.8%          /lib/x86_64-linux-gnu/libpthread-2.23.so
    763    0.4%          /lib/x86_64-linux-gnu/libc-2.23.so
    118    0.1%          [vdso]
     15    0.0%          /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21
      1    0.0%          /lib/x86_64-linux-gnu/libm-2.23.so
      1    0.0%          /lib/x86_64-linux-gnu/ld-2.23.so

 [JavaScript]:
   ticks  total  nonlib   name
    511    0.3%    0.3%  LazyCompile: *Readable.read _stream_readable.js:365:35
    368    0.2%    0.2%  Builtin: CompileLazy
    362    0.2%    0.2%  Builtin: LoadIC
    279    0.1%    0.1%  LazyCompile: *_tickCallback internal/process/next_tick.js:92:25
    260    0.1%    0.1%  LazyCompile: *fs.read fs.js:2318:55
    229    0.1%    0.1%  LazyCompile: *readableAddChunk _stream_readable.js:213:26
    224    0.1%    0.1%  LazyCompile: *ondata _stream_readable.js:644:18
    211    0.1%    0.1%  LazyCompile: *nextTick internal/process/next_tick.js:146:20
    197    0.1%    0.1%  Builtin: KeyedLoadIC_Megamorphic
    145    0.1%    0.1%  Builtin: CallFunction_ReceiverIsAny
    141    0.1%    0.1%  LazyCompile: *<anonymous> _stream_readable.js:707:18
    132    0.1%    0.1%  Builtin: CallFunction_ReceiverIsNotNullOrUndefined
    123    0.1%    0.1%  LazyCompile: *WriteStream._write fs.js:2443:40
    115    0.1%    0.1%  Builtin: JSConstructStubGenericUnrestrictedReturn
    114    0.1%    0.1%  Stub: JSEntryStub
    114    0.1%    0.1%  Builtin: KeyedLoadIC
    113    0.1%    0.1%  Builtin: ArgumentsAdaptorTrampoline
    110    0.1%    0.1%  Builtin: RecordWrite
    104    0.1%    0.1%  Builtin: KeyedLoadIC_PolymorphicName
     91    0.0%    0.0%  LazyCompile: *fs.write fs.js:2458:53
     79    0.0%    0.0%  Builtin: FastNewObject
     78    0.0%    0.0%  LazyCompile: *emitPromiseRejectionWarnings internal/process/promises.js:86:38
     76    0.0%    0.0%  LazyCompile: *wrapper fs.js:814:19
     72    0.0%    0.0%  Builtin: JSEntryTrampoline
     68    0.0%    0.0%  LazyCompile: *Uint8Array native typedarray.js:154:31
     67    0.0%    0.0%  Builtin: CallWithArrayLike
     65    0.0%    0.0%  LazyCompile: *validateBuffer fs.js:174:24
     63    0.0%    0.0%  LazyCompile: *emitReadable _stream_readable.js:510:22
     62    0.0%    0.0%  Builtin: TypedArrayInitializeWithBuffer
     58    0.0%    0.0%  Builtin: JSConstructStubApi
     54    0.0%    0.0%  Builtin: Call_ReceiverIsAny
     53    0.0%    0.0%  LazyCompile: *afterWrite _stream_writable.js:459:20
     48    0.0%    0.0%  LazyCompile: *maybeReadMore_ _stream_readable.js:544:24
     45    0.0%    0.0%  Builtin: ClassOf
     44    0.0%    0.0%  LazyCompile: *adjustOffset buffer.js:998:22
     43    0.0%    0.0%  Stub: CEntryStub {1}
     41    0.0%    0.0%  LazyCompile: *Transform._read _stream_transform.js:180:37
     40    0.0%    0.0%  Builtin: Divide
     39    0.0%    0.0%  LazyCompile: *fromList _stream_readable.js:979:18
     34    0.0%    0.0%  LazyCompile: *validateUint32 fs.js:273:24
     34    0.0%    0.0%  LazyCompile: *push internal/streams/BufferList.js:17:7
     33    0.0%    0.0%  Builtin: InterpreterEntryTrampoline
     32    0.0%    0.0%  Stub: CallApiCallbackStub {1}
     30    0.0%    0.0%  LazyCompile: *Transform._write _stream_transform.js:163:38
     28    0.0%    0.0%  Stub: CEntryStub
     28    0.0%    0.0%  LazyCompile: *emitReadable_ _stream_readable.js:520:23
     28    0.0%    0.0%  Builtin: LoadICTrampoline
     26    0.0%    0.0%  LazyCompile: *wrapper fs.js:852:19
     24    0.0%    0.0%  Builtin: StrictEqual
     24    0.0%    0.0%  Builtin: CallFunction_ReceiverIsNullOrUndefined
     23    0.0%    0.0%  Builtin: GreaterThan
     22    0.0%    0.0%  Builtin: Add
     21    0.0%    0.0%  Builtin: HandleApiCall
     19    0.0%    0.0%  Builtin: Modulus
     19    0.0%    0.0%  Builtin: LessThan
     15    0.0%    0.0%  LazyCompile: *emit events.js:101:44
     14    0.0%    0.0%  Builtin: StoreIC
     14    0.0%    0.0%  Builtin: Equal
     13    0.0%    0.0%  Builtin: TypedArrayConstructByArrayBuffer
     11    0.0%    0.0%  LazyCompile: *Readable.push _stream_readable.js:188:35
     11    0.0%    0.0%  Builtin: Call_ReceiverIsNullOrUndefined
     10    0.0%    0.0%  Builtin: Subtract
     10    0.0%    0.0%  Builtin: KeyedLoadICTrampoline
     10    0.0%    0.0%  Builtin: CallForwardVarargs
      9    0.0%    0.0%  Builtin: CallVarargs
      8    0.0%    0.0%  LazyCompile: *PassThrough._transform _stream_passthrough.js:41:44
      7    0.0%    0.0%  Builtin: AdaptorWithExitFrame
      6    0.0%    0.0%  Stub: CallApiCallbackStub
      6    0.0%    0.0%  LazyCompile: *slice buffer.js:1014:40
      6    0.0%    0.0%  Builtin: NumberParseInt
      6    0.0%    0.0%  Builtin: NumberIsSafeInteger
      5    0.0%    0.0%  LazyCompile: *onwrite _stream_writable.js:431:17
      5    0.0%    0.0%  LazyCompile: *afterTransform _stream_transform.js:73:24
      4    0.0%    0.0%  LazyCompile: *howMuchToRead _stream_readable.js:339:23
      3    0.0%    0.0%  LazyCompile: *debugs.(anonymous function) util.js:259:29
      3    0.0%    0.0%  LazyCompile: *chunkInvalid _stream_readable.js:278:22
      3    0.0%    0.0%  Builtin: KeyedStoreIC
      2    0.0%    0.0%  Builtin: MathMin
      2    0.0%    0.0%  Builtin: Construct
      2    0.0%    0.0%  Builtin: Call_ReceiverIsNotNullOrUndefined
      2    0.0%    0.0%  Builtin: CallBoundFunction
      2    0.0%    0.0%  Builtin: AdaptorWithBuiltinExitFrame
      1    0.0%    0.0%  Stub: StoreFastElementStub
      1    0.0%    0.0%  LazyCompile: *validateOffsetLengthRead fs.js:195:34
      1    0.0%    0.0%  LazyCompile: *getDefaultTriggerAsyncId internal/async_hooks.js:264:34
      1    0.0%    0.0%  LazyCompile: *fs.write fs.js:851:20
      1    0.0%    0.0%  LazyCompile: *emitBeforeScript internal/async_hooks.js:314:26
      1    0.0%    0.0%  LazyCompile: *emitAfterScript internal/async_hooks.js:328:25
      1    0.0%    0.0%  LazyCompile: *doWrite _stream_writable.js:388:17
      1    0.0%    0.0%  Builtin: StringEqual
      1    0.0%    0.0%  Builtin: ObjectGetPrototypeOf
      1    0.0%    0.0%  Builtin: MathTrunc
      1    0.0%    0.0%  Builtin: LoadIC_FunctionPrototype
      1    0.0%    0.0%  Builtin: KeyedStoreIC_Megamorphic

 [C++]:
   ticks  total  nonlib   name
  179603   88.2%   89.3%  syscall
   3298    1.6%    1.6%  __pthread_cond_signal
    837    0.4%    0.4%  node::fs::NewFSReqWrap(v8::FunctionCallbackInfo<v8::Value> const&)
    427    0.2%    0.2%  v8::internal::LookupIterator::PropertyOrElement(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, bool*, v8::internal::LookupIterator::Configuration)
    399    0.2%    0.2%  v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*)
    333    0.2%    0.2%  v8::Context::Enter()
    198    0.1%    0.1%  node::InternalCallbackScope::InternalCallbackScope(node::Environment*, v8::Local<v8::Object>, node::async_context const&, node::InternalCallbackScope::ResourceExpectation)
    190    0.1%    0.1%  v8::internal::LookupIterator::State v8::internal::LookupIterator::LookupInRegularHolder<false>(v8::internal::Map*, v8::internal::JSReceiver*)
    183    0.1%    0.1%  uv__io_poll
    174    0.1%    0.1%  uv__async_io
    170    0.1%    0.1%  v8::internal::Heap::CopyJSObject(v8::internal::JSObject*, v8::internal::AllocationSite*)
    162    0.1%    0.1%  __GI___pthread_mutex_lock
    161    0.1%    0.1%  v8::internal::Runtime_StringParseInt(int, v8::internal::Object**, v8::internal::Isolate*)
    161    0.1%    0.1%  v8::internal::Heap::AllocateRaw(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment)
    157    0.1%    0.1%  node::AsyncWrap::EmitTraceEventBefore()
    156    0.1%    0.1%  node::fs::AfterInteger(uv_fs_s*)
    147    0.1%    0.1%  v8::Object::Get(v8::Local<v8::Value>)
    147    0.1%    0.1%  node::InternalCallbackScope::Close()
    139    0.1%    0.1%  node::InternalMakeCallback(node::Environment*, v8::Local<v8::Object>, v8::Local<v8::Function>, int, v8::Local<v8::Value>*, node::async_context)
    137    0.1%    0.1%  v8::Value::IsFunction() const
    137    0.1%    0.1%  __GI___pthread_getspecific
    133    0.1%    0.1%  cfree
    131    0.1%    0.1%  v8::Object::Get(v8::Local<v8::Context>, v8::Local<v8::Value>)
    125    0.1%    0.1%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<true>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
    120    0.1%    0.1%  __lll_unlock_wake
    119    0.1%    0.1%  node::AsyncWrap::EmitTraceEventAfter()
    117    0.1%    0.1%  v8::Isolate::GetCurrentContext()
    114    0.1%    0.1%  v8::internal::Object::GetProperty(v8::internal::LookupIterator*)
    114    0.1%    0.1%  v8::internal::Heap::RegisterNewArrayBuffer(v8::internal::JSArrayBuffer*)
    108    0.1%    0.1%  v8::internal::Builtin_ObjectGetPrototypeOf(int, v8::internal::Object**, v8::internal::Isolate*)
    107    0.1%    0.1%  v8::HandleScope::Initialize(v8::Isolate*)
    107    0.1%    0.1%  v8::Function::Call(v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>*)
    103    0.1%    0.1%  v8::internal::Logger::ApiEntryCall(char const*)
     92    0.0%    0.0%  v8::internal::GlobalHandles::Destroy(v8::internal::Object**)
     89    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<true>::CallDepthScope(v8::internal::Isolate*, v8::Local<v8::Context>)
     88    0.0%    0.0%  __libc_malloc
     86    0.0%    0.0%  v8::internal::TimerEventScope<v8::internal::TimerEventExecute>::LogTimerEvent(v8::internal::Logger::StartEnd)
     83    0.0%    0.0%  node::fs::FSReqWrap::Resolve(v8::Local<v8::Value>)
     76    0.0%    0.0%  v8::internal::ApiNatives::InstantiateObject(v8::internal::Handle<v8::internal::ObjectTemplateInfo>, v8::internal::Handle<v8::internal::JSReceiver>)
     74    0.0%    0.0%  v8::internal::Map::FindRootMap() const
     74    0.0%    0.0%  v8::internal::JSObject::FastPropertyAt(v8::internal::Handle<v8::internal::JSObject>, v8::internal::Representation, v8::internal::FieldIndex)
     73    0.0%    0.0%  v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*)
     73    0.0%    0.0%  v8::Locker::IsActive()
     73    0.0%    0.0%  v8::Context::Exit()
     73    0.0%    0.0%  sigemptyset
     72    0.0%    0.0%  uv__run_check
     72    0.0%    0.0%  __GI___pthread_once
     71    0.0%    0.0%  v8::internal::Heap::InitializeJSObjectFromMap(v8::internal::JSObject*, v8::internal::Object*, v8::internal::Map*)
     70    0.0%    0.0%  v8::Object::InternalFieldCount()
     69    0.0%    0.0%  v8::internal::StringToInt(v8::internal::Isolate*, v8::internal::Handle<v8::internal::String>, int)
     68    0.0%    0.0%  _init
     63    0.0%    0.0%  v8::internal::ThreadId::GetCurrentThreadId()
     63    0.0%    0.0%  node::fs::Read(v8::FunctionCallbackInfo<v8::Value> const&)
     63    0.0%    0.0%  node::fs::FSReqWrap::~FSReqWrap()
     62    0.0%    0.0%  v8::internal::(anonymous namespace)::ProbeInstantiationsCache(v8::internal::Isolate*, int, v8::internal::(anonymous namespace)::CachingMode)
     61    0.0%    0.0%  v8::internal::JSObject::GetHeaderSize(v8::internal::InstanceType, bool)
     61    0.0%    0.0%  __libc_realloc
     60    0.0%    0.0%  v8::internal::ArrayBufferTracker::PrepareToFreeDeadInNewSpace(v8::internal::Heap*)
     59    0.0%    0.0%  v8::CpuProfiler::SetIdle(bool)
     59    0.0%    0.0%  node::fs::WriteBuffer(v8::FunctionCallbackInfo<v8::Value> const&)
     58    0.0%    0.0%  node::AsyncWrap::MakeCallback(v8::Local<v8::Function>, int, v8::Local<v8::Value>*)
     56    0.0%    0.0%  void v8::internal::(anonymous namespace)::StringToIntHelper::DetectRadixInternal<unsigned char const*>(unsigned char const*, int)
     56    0.0%    0.0%  v8::internal::Object::ConvertToString(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>)
     56    0.0%    0.0%  uv_run
     56    0.0%    0.0%  uv__fs_done
     55    0.0%    0.0%  v8::internal::LookupIterator::FetchValue() const [clone .part.49]
     55    0.0%    0.0%  uv__run_prepare
     55    0.0%    0.0%  __errno_location
     53    0.0%    0.0%  __clock_gettime
     52    0.0%    0.0%  v8::internal::Isolate::FireCallCompletedCallback()
     51    0.0%    0.0%  v8::EscapableHandleScope::Escape(v8::internal::Object**)
     51    0.0%    0.0%  uv__run_timers
     49    0.0%    0.0%  v8::Value::IsExternal() const
     46    0.0%    0.0%  v8::internal::SaveContext::SaveContext(v8::internal::Isolate*)
     45    0.0%    0.0%  v8::Function::Call(v8::Local<v8::Value>, int, v8::Local<v8::Value>*)
     45    0.0%    0.0%  std::__detail::_Prime_rehash_policy::_M_need_rehash(unsigned long, unsigned long, unsigned long) const
     45    0.0%    0.0%  __GI___pthread_mutex_unlock
     44    0.0%    0.0%  v8::internal::Heap::AllocateHeapNumber(v8::internal::MutableMode, v8::internal::PretenureFlag)
     44    0.0%    0.0%  v8::internal::HandleScope::Extend(v8::internal::Isolate*)
     44    0.0%    0.0%  v8::internal::Builtin_TypedArrayPrototypeBuffer(int, v8::internal::Object**, v8::internal::Isolate*)
     44    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<true>::~CallDepthScope() [clone .constprop.576]
     43    0.0%    0.0%  node::AsyncWrap::EmitBefore(node::Environment*, double)
     43    0.0%    0.0%  __lll_lock_wait
     43    0.0%    0.0%  __GI___libc_read
     42    0.0%    0.0%  v8::ArrayBuffer::GetContents()
     42    0.0%    0.0%  uv__work_done
     41    0.0%    0.0%  v8::internal::JSTypedArray::GetBuffer()
     41    0.0%    0.0%  operator delete(void*, unsigned long)
     38    0.0%    0.0%  v8::internal::Runtime::GetObjectProperty(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, bool*)
     37    0.0%    0.0%  v8::External::Value() const
     37    0.0%    0.0%  uv_fs_req_cleanup
     36    0.0%    0.0%  v8::internal::JSArrayBuffer::Setup(v8::internal::Handle<v8::internal::JSArrayBuffer>, v8::internal::Isolate*, bool, void*, unsigned long, void*, unsigned long, v8::internal::SharedFlag)
     35    0.0%    0.0%  v8::internal::LookupIterator::GetDataValue() const
     35    0.0%    0.0%  v8::HandleScope::~HandleScope()
     34    0.0%    0.0%  v8::internal::SaveContext::~SaveContext()
     33    0.0%    0.0%  node::(anonymous namespace)::RunMicrotasks(v8::FunctionCallbackInfo<v8::Value> const&)
     31    0.0%    0.0%  v8::internal::Isolate::RunMicrotasks()
     31    0.0%    0.0%  node::ArrayBufferAllocator::Allocate(unsigned long)
     30    0.0%    0.0%  node::AsyncWrap::EmitTraceEventDestroy()
     29    0.0%    0.0%  v8::Value::Int32Value() const
     29    0.0%    0.0%  sigaddset
     29    0.0%    0.0%  operator delete(void*)
     28    0.0%    0.0%  v8::internal::JSObject::New(v8::internal::Handle<v8::internal::JSFunction>, v8::internal::Handle<v8::internal::JSReceiver>, v8::internal::Handle<v8::internal::AllocationSite>)
     27    0.0%    0.0%  v8::internal::Builtin_ArrayBufferConstructor_ConstructStub(int, v8::internal::Object**, v8::internal::Isolate*)
     26    0.0%    0.0%  v8::base::Thread::GetThreadLocal(int)
     26    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<false>::~CallDepthScope() [clone .constprop.574]
     25    0.0%    0.0%  v8::internal::HandleScope::DeleteExtensions(v8::internal::Isolate*)
     25    0.0%    0.0%  v8::internal::FunctionCallbackArguments::Call(void (*)(v8::FunctionCallbackInfo<v8::Value> const&))
     25    0.0%    0.0%  v8::internal::Factory::NewJSObjectFromMap(v8::internal::Handle<v8::internal::Map>, v8::internal::PretenureFlag, v8::internal::Handle<v8::internal::AllocationSite>)
     24    0.0%    0.0%  v8::internal::Map::IsUnboxedDoubleField(v8::internal::FieldIndex) const
     24    0.0%    0.0%  v8::internal::Factory::CopyJSObject(v8::internal::Handle<v8::internal::JSObject>)
     24    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<false>::CallDepthScope(v8::internal::Isolate*, v8::Local<v8::Context>)
     24    0.0%    0.0%  uv__run_idle
     24    0.0%    0.0%  uv(float, long double,...)(...)
     24    0.0%    0.0%  std::_Hashtable<v8::internal::JSArrayBuffer*, v8::internal::JSArrayBuffer*, std::allocator<v8::internal::JSArrayBuffer*>, std::__detail::_Identity, std::equal_to<v8::internal::JSArrayBuffer*>, v8::internal::LocalArrayBufferTracker::Hasher, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, true, true> >::_M_insert_unique_node(unsigned long, unsigned long, std::__detail::_Hash_node<v8::internal::JSArrayBuffer*, true>*)
     23    0.0%    0.0%  v8::internal::Factory::NewNumber(double, v8::internal::PretenureFlag)
     23    0.0%    0.0%  v8::Value::IsObject() const
     23    0.0%    0.0%  v8::Object::SetAlignedPointerInInternalField(int, void*)
     23    0.0%    0.0%  node::Environment::StartProfilerIdleNotifier()::{lambda(uv_check_s*)#2}::_FUN(uv_check_s*)
     23    0.0%    0.0%  node::AsyncWrap::EmitAfter(node::Environment*, double)
     22    0.0%    0.0%  v8::internal::IncrementalMarking::Step(unsigned long, v8::internal::IncrementalMarking::CompletionAction, v8::internal::StepOrigin, v8::internal::WorklistToProcess)
     22    0.0%    0.0%  v8::Value::IsArrayBufferView() const
     20    0.0%    0.0%  void v8::internal::LookupIterator::Start<false>()
     20    0.0%    0.0%  v8::internal::JSFunction::EnsureHasInitialMap(v8::internal::Handle<v8::internal::JSFunction>)
     19    0.0%    0.0%  v8::internal::Isolate::RunMicrotasksInternal()
     19    0.0%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::SuppressMicrotaskExecutionScope(v8::Isolate*)
     19    0.0%    0.0%  uv_buf_init
     19    0.0%    0.0%  uv__next_timeout
     19    0.0%    0.0%  node::Environment::CheckImmediate(uv_check_s*)
     18    0.0%    0.0%  node::contextify::ContextifyScript::New(v8::FunctionCallbackInfo<v8::Value> const&)
     18    0.0%    0.0%  __pthread_enable_asynccancel
     17    0.0%    0.0%  uv__work_submit
     17    0.0%    0.0%  node::AsyncWrap::~AsyncWrap()
     16    0.0%    0.0%  v8::internal::PerIsolateAssertScope<(v8::internal::PerIsolateAssertType)0, true>::IsAllowed(v8::internal::Isolate*)
     16    0.0%    0.0%  v8::Value::IsNumber() const
     16    0.0%    0.0%  uv__epoll_pwait
     15    0.0%    0.0%  v8::Value::Uint32Value() const
     15    0.0%    0.0%  v8::ArrayBufferView::ByteLength()
     15    0.0%    0.0%  v8::ArrayBufferView::Buffer()
     15    0.0%    0.0%  uv_fs_read
     14    0.0%    0.0%  v8::internal::StoreBuffer::MoveEntriesToRememberedSet(int)
     14    0.0%    0.0%  v8::internal::Heap::InitializeJSObjectBody(v8::internal::JSObject*, v8::internal::Map*, int)
     14    0.0%    0.0%  uv__hrtime
     14    0.0%    0.0%  std::_Hashtable<v8::internal::JSArrayBuffer*, v8::internal::JSArrayBuffer*, std::allocator<v8::internal::JSArrayBuffer*>, std::__detail::_Identity, std::equal_to<v8::internal::JSArrayBuffer*>, v8::internal::LocalArrayBufferTracker::Hasher, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, true, true> >::erase(std::__detail::_Node_const_iterator<v8::internal::JSArrayBuffer*, true, true>)
     14    0.0%    0.0%  bool v8::base::AsAtomic32::SetBits<unsigned int>(unsigned int*, unsigned int, unsigned int)
     13    0.0%    0.0%  v8::internal::compiler::GraphReducer::ReduceTop()
     13    0.0%    0.0%  v8::internal::String::GetFlatContent()
     13    0.0%    0.0%  v8::internal::Scavenger::ScavengePage(v8::internal::MemoryChunk*)
     13    0.0%    0.0%  v8::internal::JSArrayBuffer::SetupAllocatingData(v8::internal::Handle<v8::internal::JSArrayBuffer>, v8::internal::Isolate*, unsigned long, bool, v8::internal::SharedFlag)
     13    0.0%    0.0%  v8::Integer::New(v8::Isolate*, int)
     13    0.0%    0.0%  v8::HandleScope::HandleScope(v8::Isolate*)
     13    0.0%    0.0%  v8::EscapableHandleScope::EscapableHandleScope(v8::Isolate*)
     12    0.0%    0.0%  void v8::internal::CopyWords<v8::internal::Object*>(v8::internal::Object**, v8::internal::Object* const*, unsigned long)
     12    0.0%    0.0%  v8::internal::SerializerDeserializer::Iterate(v8::internal::Isolate*, v8::internal::RootVisitor*)
     12    0.0%    0.0%  node::fs::GetReqWrap(node::Environment*, v8::Local<v8::Value>)
     12    0.0%    0.0%  node::Buffer::Data(v8::Local<v8::Object>)
     11    0.0%    0.0%  v8::internal::Factory::NewHeapNumber(v8::internal::MutableMode, v8::internal::PretenureFlag)
     11    0.0%    0.0%  uv_fs_write
     10    0.0%    0.0%  v8::internal::Heap::RecordWrite(v8::internal::Object*, v8::internal::Object**, v8::internal::Object*)
     10    0.0%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::~SuppressMicrotaskExecutionScope()
     10    0.0%    0.0%  v8::Isolate::CheckMemoryPressure()
      8    0.0%    0.0%  void v8::internal::BodyDescriptorBase::IteratePointers<v8::internal::MarkingVisitor<(v8::internal::FixedArrayVisitationMode)1, (v8::internal::TraceRetainingPathMode)1, v8::internal::IncrementalMarkingState> >(v8::internal::HeapObject*, int, int, v8::internal::MarkingVisitor<(v8::internal::FixedArrayVisitationMode)1, (v8::internal::TraceRetainingPathMode)1, v8::internal::IncrementalMarkingState>*)
      8    0.0%    0.0%  v8::internal::RootScavengeVisitor::VisitRootPointer(v8::internal::Root, v8::internal::Object**)
      8    0.0%    0.0%  v8::internal::Heap::CheckMemoryPressure()
      8    0.0%    0.0%  v8::internal::Heap::Allocate(v8::internal::Map*, v8::internal::AllocationSpace, v8::internal::AllocationSite*)
      7    0.0%    0.0%  v8::internal::Logger::ApiObjectAccess(char const*, v8::internal::JSObject*)
      7    0.0%    0.0%  v8::internal::Heap::Scavenge()
      7    0.0%    0.0%  v8::Isolate::RunMicrotasks()
      7    0.0%    0.0%  node::fs::FSReqWrap::SetReturnValue(v8::FunctionCallbackInfo<v8::Value> const&)
      7    0.0%    0.0%  node::Environment::StartProfilerIdleNotifier()::{lambda(uv_prepare_s*)#1}::_FUN(uv_prepare_s*)
      6    0.0%    0.0%  v8::internal::compiler::GraphTrimmer::TrimGraph()
      6    0.0%    0.0%  v8::internal::JSDate::set_value(v8::internal::Object*, v8::internal::WriteBarrierMode) [clone .constprop.574]
      6    0.0%    0.0%  v8::internal::Bitmap::Clear()
      6    0.0%    0.0%  v8::internal::(anonymous namespace)::ConstructBuffer(v8::internal::Isolate*, v8::internal::Handle<v8::internal::JSFunction>, v8::internal::Handle<v8::internal::JSReceiver>, v8::internal::Handle<v8::internal::Object>, bool)
      5    0.0%    0.0%  void std::vector<v8::internal::JSArrayBuffer::Allocation, std::allocator<v8::internal::JSArrayBuffer::Allocation> >::_M_emplace_back_aux<void*&, unsigned long, v8::ArrayBuffer::Allocator::AllocationMode>(void*&, unsigned long&&, v8::ArrayBuffer::Allocator::AllocationMode&&)
      5    0.0%    0.0%  v8::internal::Scavenger::ScavengeObject(v8::internal::HeapObject**, v8::internal::HeapObject*) [clone .constprop.215]
      5    0.0%    0.0%  v8::internal::MemoryReducer::NotifyPossibleGarbage(v8::internal::MemoryReducer::Event const&)
      5    0.0%    0.0%  v8::internal::JSFunction::GetDerivedMap(v8::internal::Isolate*, v8::internal::Handle<v8::internal::JSFunction>, v8::internal::Handle<v8::internal::JSReceiver>)
      5    0.0%    0.0%  v8::internal::Heap::AllocateJSObjectFromMap(v8::internal::Map*, v8::internal::PretenureFlag, v8::internal::AllocationSite*)
      5    0.0%    0.0%  v8::Value::IntegerValue() const
      5    0.0%    0.0%  v8::V8::DisposeGlobal(v8::internal::Object**)
      4    0.0%    0.0%  write
      4    0.0%    0.0%  v8::internal::IncrementalMarking::WhiteToGreyAndPush(v8::internal::HeapObject*)
      3    0.0%    0.0%  v8::internal::compiler::GraphReducer::Reduce(v8::internal::compiler::Node*)
      3    0.0%    0.0%  v8::internal::compiler::BytecodeGraphBuilder::MakeNode(v8::internal::compiler::Operator const*, int, v8::internal::compiler::Node* const*, bool)
      3    0.0%    0.0%  v8::internal::Heap::ProcessPretenuringFeedback() [clone .part.783]
      3    0.0%    0.0%  v8::internal::CancelableTaskManager::Register(v8::internal::Cancelable*)
      3    0.0%    0.0%  v8::ArrayBufferView::ByteOffset()
      3    0.0%    0.0%  std::__detail::_Prime_rehash_policy::_M_next_bkt(unsigned long) const
      3    0.0%    0.0%  node::Buffer::Length(v8::Local<v8::Object>)
      2    0.0%    0.0%  void v8::internal::Code::BodyDescriptor::IterateBody<v8::internal::MarkingVisitor<(v8::internal::FixedArrayVisitationMode)1, (v8::internal::TraceRetainingPathMode)1, v8::internal::IncrementalMarkingState> >(v8::internal::HeapObject*, v8::internal::MarkingVisitor<(v8::internal::FixedArrayVisitationMode)1, (v8::internal::TraceRetainingPathMode)1, v8::internal::IncrementalMarkingState>*) [clone .constprop.256]
      2    0.0%    0.0%  v8::internal::compiler::Typer::Visitor::Reduce(v8::internal::compiler::Node*)
      2    0.0%    0.0%  v8::internal::compiler::SourcePositionTable::GetSourcePosition(v8::internal::compiler::Node*) const
      2    0.0%    0.0%  v8::internal::compiler::Node::New(v8::internal::Zone*, unsigned int, v8::internal::compiler::Operator const*, int, v8::internal::compiler::Node* const*, bool)
      2    0.0%    0.0%  v8::internal::Zone::New(unsigned long)
      2    0.0%    0.0%  v8::internal::StoreBuffer::MoveAllEntriesToRememberedSet()
      2    0.0%    0.0%  v8::internal::Scavenger::Process(v8::internal::OneshotBarrier*)
      2    0.0%    0.0%  v8::internal::RelocIterator::next()
      2    0.0%    0.0%  v8::internal::PerIsolateAssertScope<(v8::internal::PerIsolateAssertType)1, false>::IsAllowed(v8::internal::Isolate*)
      2    0.0%    0.0%  v8::internal::PagedSpace::SizeOfObjects()
      2    0.0%    0.0%  v8::internal::MemoryReducer::TimerTask::RunInternal()
      2    0.0%    0.0%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
      2    0.0%    0.0%  v8::internal::MarkCompactCollector::RootMarkingVisitor::VisitRootPointer(v8::internal::Root, v8::internal::Object**)
      2    0.0%    0.0%  v8::internal::Isolate::wasm_code_manager()
      2    0.0%    0.0%  v8::internal::Heap::GarbageCollectionEpilogue()
      2    0.0%    0.0%  v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags)
      2    0.0%    0.0%  v8::internal::GCTracer::Start(v8::internal::GarbageCollector, v8::internal::GarbageCollectionReason, char const*)
      2    0.0%    0.0%  v8::internal::CanonicalHandleScope::Lookup(v8::internal::Object*)
      2    0.0%    0.0%  v8::internal::AccountingAllocator::ReturnSegment(v8::internal::Segment*)
      2    0.0%    0.0%  v8::base::Mutex::Unlock()
      2    0.0%    0.0%  v8::Object::CreationContext()
      2    0.0%    0.0%  uv_mutex_lock
      2    0.0%    0.0%  uv_hrtime
      2    0.0%    0.0%  std::vector<v8::internal::SourcePosition, v8::internal::ZoneAllocator<v8::internal::SourcePosition> >::_M_fill_insert(__gnu_cxx::__normal_iterator<v8::internal::SourcePosition*, std::vector<v8::internal::SourcePosition, v8::internal::ZoneAllocator<v8::internal::SourcePosition> > >, unsigned long, v8::internal::SourcePosition const&)
      2    0.0%    0.0%  operator new(unsigned long)
      2    0.0%    0.0%  node::NodePlatform::MonotonicallyIncreasingTime()
      2    0.0%    0.0%  node::NodePlatform::CallOnBackgroundThread(v8::Task*, v8::Platform::ExpectedRuntime)
      2    0.0%    0.0%  node::Binding(v8::FunctionCallbackInfo<v8::Value> const&)
      2    0.0%    0.0%  _IO_vfprintf
      1    0.0%    0.0%  v8::internal::parsing::ParseFunction(v8::internal::ParseInfo*, v8::internal::Handle<v8::internal::SharedFunctionInfo>, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::interpreter::InterpreterCompilationJob::FinalizeJobImpl(v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::interpreter::Interpreter::IterateDispatchTable(v8::internal::RootVisitor*)
      1    0.0%    0.0%  v8::internal::interpreter::ConstantArrayBuilder::Insert(v8::internal::AstRawString const*)
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeLabels::Bind(v8::internal::interpreter::BytecodeArrayBuilder*)
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeArrayWriter::BytecodeArrayWriter(v8::internal::Zone*, v8::internal::interpreter::ConstantArrayBuilder*, v8::internal::SourcePositionTableBuilder::RecordingMode)
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeArrayRandomIterator::UpdateOffsetFromIndex()
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeArrayRandomIterator::IsValid() const
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeArrayBuilder::StoreAccumulatorInRegister(v8::internal::interpreter::Register)
      1    0.0%    0.0%  v8::internal::compiler::Typer::Visitor::TypeInductionVariablePhi(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::SimplifiedOperatorBuilder::CheckIf(v8::internal::DeoptimizeReason)
      1    0.0%    0.0%  v8::internal::compiler::OperatorProperties::HasContextInput(v8::internal::compiler::Operator const*)
      1    0.0%    0.0%  v8::internal::compiler::Operator::Operator(unsigned short, v8::base::Flags<v8::internal::compiler::Operator::Property, unsigned char>, char const*, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long)
      1    0.0%    0.0%  v8::internal::compiler::NodeProperties::GetFrameStateInput(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::NodeProperties::GetEffectInput(v8::internal::compiler::Node*, int)
      1    0.0%    0.0%  v8::internal::compiler::Node::TrimInputCount(int)
      1    0.0%    0.0%  v8::internal::compiler::LoopVariableOptimizer::Run()
      1    0.0%    0.0%  v8::internal::compiler::JSIntrinsicLowering::Reduce(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::GraphReducer::Replace(v8::internal::compiler::Node*, v8::internal::compiler::Node*, unsigned int)
      1    0.0%    0.0%  v8::internal::compiler::FeedbackParameterOf(v8::internal::compiler::Operator const*)
      1    0.0%    0.0%  v8::internal::compiler::DeadCodeElimination::ReduceNode(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::DeadCodeElimination::ReduceEffectNode(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::CommonOperatorReducer::ReduceBranch(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::CommonOperatorBuilder::Call(v8::internal::compiler::CallDescriptor const*)
      1    0.0%    0.0%  v8::internal::compiler::BytecodeLiveness::BytecodeLiveness(int, v8::internal::Zone*)
      1    0.0%    0.0%  v8::internal::compiler::BytecodeGraphBuilder::VisitSingleBytecode(v8::internal::SourcePositionTableIterator*)
      1    0.0%    0.0%  v8::internal::compiler::BitsetType::Lub(v8::internal::compiler::Type*)
      1    0.0%    0.0%  v8::internal::compiler::AccessInfoFactory::ComputePropertyAccessInfo(v8::internal::Handle<v8::internal::Map>, v8::internal::Handle<v8::internal::Name>, v8::internal::compiler::AccessMode, v8::internal::compiler::PropertyAccessInfo*)
      1    0.0%    0.0%  v8::internal::compiler::(anonymous namespace)::UpdateInLiveness(v8::internal::interpreter::Bytecode, v8::internal::compiler::BytecodeLivenessState&, v8::internal::interpreter::BytecodeArrayAccessor const&) [clone .constprop.75]
      1    0.0%    0.0%  v8::internal::compiler::(anonymous namespace)::SourcePositionWrapper::Reduce(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::(anonymous namespace)::AddReducer(v8::internal::compiler::PipelineData*, v8::internal::compiler::GraphReducer*, v8::internal::compiler::Reducer*) [clone .constprop.532]
      1    0.0%    0.0%  v8::internal::Zone::~Zone()
      1    0.0%    0.0%  v8::internal::Worklist<v8::internal::HeapObject*, 64>::Pop(int, v8::internal::HeapObject**)
      1    0.0%    0.0%  v8::internal::VariableProxy::BindTo(v8::internal::Variable*)
      1    0.0%    0.0%  v8::internal::VSNPrintF(v8::internal::Vector<char>, char const*, __va_list_tag*)
      1    0.0%    0.0%  v8::internal::V8::GetCurrentPlatform()
      1    0.0%    0.0%  v8::internal::Sweeper::RawSweep(v8::internal::Page*, v8::internal::Sweeper::FreeListRebuildingMode, v8::internal::FreeSpaceTreatmentMode)
      1    0.0%    0.0%  v8::internal::String::SlowEquals(v8::internal::String*)
      1    0.0%    0.0%  v8::internal::StoreBuffer::StoreBufferOverflow(v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::StoreBuffer::InsertDuringRuntime(v8::internal::StoreBuffer*, unsigned char*)
      1    0.0%    0.0%  v8::internal::StandardFrame::IterateCompiledFrame(v8::internal::RootVisitor*) const
      1    0.0%    0.0%  v8::internal::StackFrame::GetCallerState(v8::internal::StackFrame::State*) const
      1    0.0%    0.0%  v8::internal::SourcePositionTableIterator::Advance()
      1    0.0%    0.0%  v8::internal::SharedFunctionInfo::PassesFilter(char const*)
      1    0.0%    0.0%  v8::internal::Scope::LookupInScopeInfo(v8::internal::AstRawString const*)
      1    0.0%    0.0%  v8::internal::Scanner::ScanIdentifierOrKeyword()
      1    0.0%    0.0%  v8::internal::Runtime_InterpreterNewClosure(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::RootScavengeVisitor::VisitRootPointers(v8::internal::Root, v8::internal::Object**, v8::internal::Object**)
      1    0.0%    0.0%  v8::internal::RelocIterator::RelocIterator(v8::internal::Code*, int)
      1    0.0%    0.0%  v8::internal::Parser::SetFunctionNameFromIdentifierRef(v8::internal::Expression*, v8::internal::Expression*)
      1    0.0%    0.0%  v8::internal::PagedSpace::MergeCompactionSpace(v8::internal::CompactionSpace*)
      1    0.0%    0.0%  v8::internal::NewSpace::UpdateInlineAllocationLimit(int)
      1    0.0%    0.0%  v8::internal::NewSpace::SizeOfObjects()
      1    0.0%    0.0%  v8::internal::NewSpace::Shrink()
      1    0.0%    0.0%  v8::internal::NewSpace::InlineAllocationStep(unsigned char*, unsigned char*, unsigned char*, unsigned long)
      1    0.0%    0.0%  v8::internal::MarkCompactCollector::RecordRelocSlot(v8::internal::Code*, v8::internal::RelocInfo*, v8::internal::Object*)
      1    0.0%    0.0%  v8::internal::Map::CopyWithField(v8::internal::Handle<v8::internal::Map>, v8::internal::Handle<v8::internal::Name>, v8::internal::Handle<v8::internal::FieldType>, v8::internal::PropertyAttributes, v8::internal::PropertyConstness, v8::internal::Representation, v8::internal::TransitionFlag)
      1    0.0%    0.0%  v8::internal::Log::MessageBuilder::WriteToLogFile()
      1    0.0%    0.0%  v8::internal::LoadICNexus::StateFromFeedback() const
      1    0.0%    0.0%  v8::internal::IdentityMapBase::GetEntry(v8::internal::Object*)
      1    0.0%    0.0%  v8::internal::HeapObject::SizeFromMap(v8::internal::Map*) const
      1    0.0%    0.0%  v8::internal::HeapObject::Size() const
      1    0.0%    0.0%  v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags)
      1    0.0%    0.0%  v8::internal::Heap::OldGenerationCapacity()
      1    0.0%    0.0%  v8::internal::Heap::GetFillToAlign(unsigned char*, v8::internal::AllocationAlignment)
      1    0.0%    0.0%  v8::internal::Heap::CreateFillerObjectAt(unsigned char*, int, v8::internal::ClearRecordedSlots) [clone .constprop.818]
      1    0.0%    0.0%  v8::internal::Heap::AllocateWeakCell(v8::internal::HeapObject*)
      1    0.0%    0.0%  v8::internal::Heap::AllocateMap(v8::internal::InstanceType, int, v8::internal::ElementsKind, int)
      1    0.0%    0.0%  v8::internal::Heap::AllocateFillerObject(int, bool, v8::internal::AllocationSpace)
      1    0.0%    0.0%  v8::internal::GlobalHandles::MarkNewSpaceWeakUnmodifiedObjectsPending(bool (*)(v8::internal::Heap*, v8::internal::Object**))
      1    0.0%    0.0%  v8::internal::GCTracer::Stop(v8::internal::GarbageCollector)
      1    0.0%    0.0%  v8::internal::GCTracer::Output(char const*, ...) const
      1    0.0%    0.0%  v8::internal::FixStaleLeftTrimmedHandlesVisitor::VisitRootPointers(v8::internal::Root, v8::internal::Object**, v8::internal::Object**)
      1    0.0%    0.0%  v8::internal::ExitFrame::Iterate(v8::internal::RootVisitor*) const
      1    0.0%    0.0%  v8::internal::EternalHandles::IterateNewSpaceRoots(v8::internal::RootVisitor*)
      1    0.0%    0.0%  v8::internal::EntryFrame::Iterate(v8::internal::RootVisitor*) const
      1    0.0%    0.0%  v8::internal::DependentCode::Insert(v8::internal::Handle<v8::internal::DependentCode>, v8::internal::DependentCode::DependencyGroup, v8::internal::Handle<v8::internal::Object>)
      1    0.0%    0.0%  v8::internal::CompilationCache::Iterate(v8::internal::RootVisitor*)
      1    0.0%    0.0%  v8::internal::Assembler::jmp(v8::internal::Label*, v8::internal::Label::Distance)
      1    0.0%    0.0%  v8::internal::ArrayBufferCollector::FreeAllocationsOnBackgroundThread()
      1    0.0%    0.0%  v8::internal::AggregatedMemoryHistogram<v8::internal::Histogram>::AddSample(double, double)
      1    0.0%    0.0%  v8::base::hash_value(unsigned long)
      1    0.0%    0.0%  v8::base::TemplateHashMapImpl<int, v8::internal::compiler::BytecodeLiveness, v8::base::KeyEqualityMatcher<int>, v8::internal::ZoneAllocationPolicy>::FillEmptyEntry(v8::base::TemplateHashMapEntry<int, v8::internal::compiler::BytecodeLiveness>*, int const&, v8::internal::compiler::BytecodeLiveness const&, unsigned int, v8::internal::ZoneAllocationPolicy)
      1    0.0%    0.0%  v8::Value::IsInt32() const
      1    0.0%    0.0%  uv_timer_stop
      1    0.0%    0.0%  uv_mutex_unlock
      1    0.0%    0.0%  uv_cond_signal
      1    0.0%    0.0%  std::vector<v8::internal::compiler::Node*, v8::internal::ZoneAllocator<v8::internal::compiler::Node*> >::_M_fill_insert(__gnu_cxx::__normal_iterator<v8::internal::compiler::Node**, std::vector<v8::internal::compiler::Node*, v8::internal::ZoneAllocator<v8::internal::compiler::Node*> > >, unsigned long, v8::internal::compiler::Node* const&)
      1    0.0%    0.0%  std::pair<std::_Rb_tree_iterator<v8::internal::compiler::JSInliningHeuristic::Candidate>, bool> std::_Rb_tree<v8::internal::compiler::JSInliningHeuristic::Candidate, v8::internal::compiler::JSInliningHeuristic::Candidate, std::_Identity<v8::internal::compiler::JSInliningHeuristic::Candidate>, v8::internal::compiler::JSInliningHeuristic::CandidateCompare, v8::internal::ZoneAllocator<v8::internal::compiler::JSInliningHeuristic::Candidate> >::_M_insert_unique<v8::internal::compiler::JSInliningHeuristic::Candidate const&>(v8::internal::compiler::JSInliningHeuristic::Candidate const&)
      1    0.0%    0.0%  std::_Deque_base<v8::internal::compiler::BytecodeAnalysis::LoopStackEntry, v8::internal::RecyclingZoneAllocator<v8::internal::compiler::BytecodeAnalysis::LoopStackEntry> >::_M_initialize_map(unsigned long)
      1    0.0%    0.0%  node::PerIsolatePlatformData::PostDelayedTask(std::unique_ptr<v8::Task, std::default_delete<v8::Task> >, double)
      1    0.0%    0.0%  node::PerIsolatePlatformData::FlushForegroundTasksInternal()::{lambda(node::DelayedTask*)#1}::operator()(node::DelayedTask*) const::{lambda(uv_handle_s*)#1}::_FUN(uv_handle_s)
      1    0.0%    0.0%  node::Buffer::HasInstance(v8::Local<v8::Value>)
      1    0.0%    0.0%  int v8::internal::BinarySearch<(v8::internal::SearchMode)1, v8::internal::DescriptorArray>(v8::internal::DescriptorArray*, v8::internal::Name*, int, int*)
      1    0.0%    0.0%  fwrite
      1    0.0%    0.0%  do_futex_wait.constprop.3
      1    0.0%    0.0%  brk
      1    0.0%    0.0%  __GI___libc_write
      1    0.0%    0.0%  _IO_default_xsputn

 [Summary]:
   ticks  total  nonlib   name
   5664    2.8%    2.8%  JavaScript
  193831   95.2%   96.4%  C++
    329    0.2%    0.2%  GC
   2503    1.2%          Shared libraries
   1590    0.8%          Unaccounted

 [C++ entry points]:
   ticks    cpp   total   name
   3284   42.3%    1.6%  __pthread_cond_signal
   1505   19.4%    0.7%  v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*)
   1179   15.2%    0.6%  v8::internal::Builtin_ArrayBufferConstructor_ConstructStub(int, v8::internal::Object**, v8::internal::Isolate*)
    546    7.0%    0.3%  v8::internal::Runtime_StringParseInt(int, v8::internal::Object**, v8::internal::Isolate*)
    111    1.4%    0.1%  __lll_unlock_wake
    108    1.4%    0.1%  v8::internal::Builtin_ObjectGetPrototypeOf(int, v8::internal::Object**, v8::internal::Isolate*)
     89    1.1%    0.0%  __GI___pthread_mutex_lock
     74    1.0%    0.0%  v8::internal::Map::FindRootMap() const
     72    0.9%    0.0%  v8::internal::Runtime_CompileOptimized_Concurrent(int, v8::internal::Object**, v8::internal::Isolate*)
     72    0.9%    0.0%  __GI___pthread_once
     60    0.8%    0.0%  v8::internal::Builtin_TypedArrayPrototypeBuffer(int, v8::internal::Object**, v8::internal::Isolate*)
     58    0.7%    0.0%  node::fs::WriteBuffer(v8::FunctionCallbackInfo<v8::Value> const&)
     56    0.7%    0.0%  node::fs::Read(v8::FunctionCallbackInfo<v8::Value> const&)
     49    0.6%    0.0%  v8::Value::IsExternal() const
     42    0.5%    0.0%  v8::ArrayBuffer::GetContents()
     37    0.5%    0.0%  v8::External::Value() const
     31    0.4%    0.0%  node::(anonymous namespace)::RunMicrotasks(v8::FunctionCallbackInfo<v8::Value> const&)
     29    0.4%    0.0%  v8::Value::Int32Value() const
     25    0.3%    0.0%  v8::internal::JSTypedArray::GetBuffer()
     23    0.3%    0.0%  v8::Value::IsObject() const
     22    0.3%    0.0%  v8::Value::IsArrayBufferView() const
     19    0.2%    0.0%  uv_buf_init
     18    0.2%    0.0%  v8::Object::InternalFieldCount()
     17    0.2%    0.0%  uv__work_submit
     16    0.2%    0.0%  v8::Value::IsNumber() const
     15    0.2%    0.0%  v8::internal::Isolate::RunMicrotasks()
     15    0.2%    0.0%  v8::Value::Uint32Value() const
     15    0.2%    0.0%  v8::ArrayBufferView::ByteLength()
     15    0.2%    0.0%  v8::ArrayBufferView::Buffer()
     15    0.2%    0.0%  uv_fs_read
     14    0.2%    0.0%  v8::internal::Runtime_CompileLazy(int, v8::internal::Object**, v8::internal::Isolate*)
     13    0.2%    0.0%  v8::internal::JSObject::GetHeaderSize(v8::internal::InstanceType, bool)
     12    0.2%    0.0%  v8::internal::Isolate::RunMicrotasksInternal()
     12    0.2%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::SuppressMicrotaskExecutionScope(v8::Isolate*)
     12    0.2%    0.0%  node::fs::GetReqWrap(node::Environment*, v8::Local<v8::Value>)
     12    0.2%    0.0%  node::Buffer::Data(v8::Local<v8::Object>)
     11    0.1%    0.0%  uv_fs_write
     10    0.1%    0.0%  __lll_lock_wait
      8    0.1%    0.0%  _init
      7    0.1%    0.0%  node::fs::FSReqWrap::SetReturnValue(v8::FunctionCallbackInfo<v8::Value> const&)
      6    0.1%    0.0%  v8::internal::Runtime_StackGuard(int, v8::internal::Object**, v8::internal::Isolate*)
      5    0.1%    0.0%  v8::Value::IntegerValue() const
      3    0.0%    0.0%  v8::internal::Runtime_AllocateInNewSpace(int, v8::internal::Object**, v8::internal::Isolate*)
      3    0.0%    0.0%  v8::ArrayBufferView::ByteOffset()
      3    0.0%    0.0%  node::Buffer::Length(v8::Local<v8::Object>)
      2    0.0%    0.0%  v8::internal::Heap::AllocateRaw(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment)
      2    0.0%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::~SuppressMicrotaskExecutionScope()
      1    0.0%    0.0%  v8::internal::Runtime_LoadIC_Miss(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::Runtime_InterpreterNewClosure(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::Runtime_CreateObjectLiteral(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<true>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
      1    0.0%    0.0%  v8::internal::Builtin_ObjectDefineProperty(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::Value::IsInt32() const
      1    0.0%    0.0%  uv_cond_signal
      1    0.0%    0.0%  node::Buffer::HasInstance(v8::Local<v8::Value>)
      1    0.0%    0.0%  __GI___pthread_mutex_unlock

 [Bottom up (heavy) profile]:
  Note: percentage shows a share of a particular caller in the total
  amount of its parent calls.
  Callers occupying less than 1.0% are not shown.

   ticks parent  name
  179603   88.2%  syscall

   3298    1.6%  __pthread_cond_signal
   1662   50.4%    LazyCompile: *WriteStream._write fs.js:2443:40
   1662  100.0%      LazyCompile: *ondata _stream_readable.js:644:18
    789   47.5%        LazyCompile: *readableAddChunk _stream_readable.js:213:26
    789  100.0%          LazyCompile: *ondata _stream_readable.js:644:18
    770   97.6%            LazyCompile: *fs.read fs.js:2318:55
     14    1.8%            LazyCompile: *Readable.push _stream_readable.js:188:35
    518   31.2%        LazyCompile: *Readable.read _stream_readable.js:365:35
    518  100.0%          LazyCompile: *<anonymous> _stream_readable.js:707:18
    506   97.7%            LazyCompile: *fs.write fs.js:2458:53
     12    2.3%            LazyCompile: *onwrite _stream_writable.js:431:17
    340   20.5%        LazyCompile: *emit events.js:101:44
    175   51.5%          LazyCompile: *readableAddChunk _stream_readable.js:213:26
    175  100.0%            LazyCompile: *Transform._write _stream_transform.js:163:38
    165   48.5%          LazyCompile: *Readable.read _stream_readable.js:365:35
    165  100.0%            LazyCompile: *<anonymous> _stream_readable.js:707:18
   1606   48.7%    LazyCompile: *Readable.read _stream_readable.js:365:35
   1587   98.8%      LazyCompile: *<anonymous> _stream_readable.js:707:18
   1488   93.8%        LazyCompile: *afterWrite _stream_writable.js:459:20
   1437   96.6%          LazyCompile: *_tickCallback internal/process/next_tick.js:92:25
     38    2.6%          LazyCompile: *afterTransform _stream_transform.js:73:24
     29   76.3%            LazyCompile: *Readable.read _stream_readable.js:365:35
      9   23.7%            LazyCompile: ~PassThrough._transform _stream_passthrough.js:41:44
     94    5.9%        LazyCompile: *PassThrough._transform _stream_passthrough.js:41:44
     94  100.0%          LazyCompile: *Readable.read _stream_readable.js:365:35
     94  100.0%            LazyCompile: *<anonymous> _stream_readable.js:707:18

Statistical profiling result from isolate-f2f-bob-c++-v8.log, (190941 ticks, 631 unaccounted, 0 excluded).

 [Shared libraries]:
   ticks  total  nonlib   name
   1115    0.6%          /lib/x86_64-linux-gnu/libpthread-2.23.so
    170    0.1%          /lib/x86_64-linux-gnu/libc-2.23.so
     78    0.0%          [vdso]
      9    0.0%          /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21
      2    0.0%          /lib/x86_64-linux-gnu/libm-2.23.so

 [JavaScript]:
   ticks  total  nonlib   name
    215    0.1%    0.1%  Builtin: CompileLazy
    112    0.1%    0.1%  LazyCompile: *next /home/jeremiah/Documents/bob/fs/file-sink.js:111:41
     87    0.0%    0.0%  LazyCompile: *FileSource.pull /home/jeremiah/Documents/bob/fs/file-source.js:89:37
     78    0.0%    0.0%  Stub: JSEntryStub
     57    0.0%    0.0%  Builtin: CallFunction_ReceiverIsAny
     53    0.0%    0.0%  LazyCompile: *fs.write /home/jeremiah/Documents/bob/fs/file-sink.js:128:46
     53    0.0%    0.0%  Builtin: JSEntryTrampoline
     46    0.0%    0.0%  LazyCompile: *fs.read /home/jeremiah/Documents/bob/fs/file-source.js:128:56
     46    0.0%    0.0%  Builtin: JSConstructStubApi
     42    0.0%    0.0%  Builtin: RecordWrite
     37    0.0%    0.0%  Builtin: Call_ReceiverIsAny
     33    0.0%    0.0%  Stub: CallApiCallbackStub {2}
     31    0.0%    0.0%  Builtin: StrictEqual
     25    0.0%    0.0%  Builtin: ArgumentsAdaptorTrampoline
     22    0.0%    0.0%  LazyCompile: *wrapper fs.js:852:19
     21    0.0%    0.0%  LazyCompile: *wrapper fs.js:814:19
     15    0.0%    0.0%  Builtin: HandleApiCall
     15    0.0%    0.0%  Builtin: CallFunction_ReceiverIsNullOrUndefined
     10    0.0%    0.0%  Stub: DoubleToIStub
     10    0.0%    0.0%  Stub: CEntryStub
      9    0.0%    0.0%  Stub: CallApiCallbackStub
      8    0.0%    0.0%  Builtin: Call_ReceiverIsNullOrUndefined
      6    0.0%    0.0%  Stub: CallApiCallbackStub {1}
      2    0.0%    0.0%  Builtin: AdaptorWithExitFrame
      1    0.0%    0.0%  Builtin: KeyedLoadIC
      1    0.0%    0.0%  Builtin: InterpreterEntryTrampoline

 [C++]:
   ticks  total  nonlib   name
  178639   93.6%   94.2%  syscall
   2504    1.3%    1.3%  __pthread_cond_signal
    611    0.3%    0.3%  node::fs::NewFSReqWrap(v8::FunctionCallbackInfo<v8::Value> const&)
    273    0.1%    0.1%  v8::internal::LookupIterator::PropertyOrElement(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, bool*, v8::internal::LookupIterator::Configuration)
    219    0.1%    0.1%  v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*)
    156    0.1%    0.1%  v8::internal::LookupIterator::State v8::internal::LookupIterator::LookupInRegularHolder<false>(v8::internal::Map*, v8::internal::JSReceiver*)
    133    0.1%    0.1%  v8::Context::Enter()
    116    0.1%    0.1%  uv__io_poll
    115    0.1%    0.1%  v8::Isolate::GetCurrentContext()
    115    0.1%    0.1%  uv__async_io
    114    0.1%    0.1%  (anonymous namespace)::v8impl::FunctionCallbackWrapper::Invoke(v8::FunctionCallbackInfo<v8::Value> const&)
    108    0.1%    0.1%  v8::External::Value() const
     99    0.1%    0.1%  node::InternalCallbackScope::Close()
     98    0.1%    0.1%  node::InternalCallbackScope::InternalCallbackScope(node::Environment*, v8::Local<v8::Object>, node::async_context const&, node::InternalCallbackScope::ResourceExpectation)
     95    0.0%    0.1%  v8::internal::Heap::CopyJSObject(v8::internal::JSObject*, v8::internal::AllocationSite*)
     88    0.0%    0.0%  node::InternalMakeCallback(node::Environment*, v8::Local<v8::Object>, v8::Local<v8::Function>, int, v8::Local<v8::Value>*, node::async_context)
     87    0.0%    0.0%  node::AsyncWrap::EmitTraceEventBefore()
     85    0.0%    0.0%  __GI___pthread_getspecific
     84    0.0%    0.0%  __GI___pthread_mutex_lock
     82    0.0%    0.0%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<true>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
     82    0.0%    0.0%  v8::Function::Call(v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>*)
     81    0.0%    0.0%  v8::Value::IsFunction() const
     81    0.0%    0.0%  v8::Object::Get(v8::Local<v8::Value>)
     81    0.0%    0.0%  v8::Object::Get(v8::Local<v8::Context>, v8::Local<v8::Value>)
     80    0.0%    0.0%  v8::internal::JSObject::FastPropertyAt(v8::internal::Handle<v8::internal::JSObject>, v8::internal::Representation, v8::internal::FieldIndex)
     79    0.0%    0.0%  v8::internal::String::IsUtf8EqualTo(v8::internal::Vector<char const>, bool)
     78    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<true>::CallDepthScope(v8::internal::Isolate*, v8::Local<v8::Context>)
     76    0.0%    0.0%  v8::HandleScope::Initialize(v8::Isolate*)
     73    0.0%    0.0%  v8::internal::Logger::ApiEntryCall(char const*)
     72    0.0%    0.0%  v8::internal::StringHasher::ComputeUtf8Hash(v8::internal::Vector<char const>, unsigned int, int*)
     65    0.0%    0.0%  v8::internal::Object::GetProperty(v8::internal::LookupIterator*)
     64    0.0%    0.0%  node::AsyncWrap::EmitTraceEventAfter()
     63    0.0%    0.0%  v8::internal::Map::FindRootMap() const
     61    0.0%    0.0%  v8::Context::Exit()
     61    0.0%    0.0%  sigemptyset
     59    0.0%    0.0%  v8::internal::LookupIterator::FetchValue() const [clone .part.49]
     57    0.0%    0.0%  v8::internal::ApiNatives::InstantiateObject(v8::internal::Handle<v8::internal::ObjectTemplateInfo>, v8::internal::Handle<v8::internal::JSReceiver>)
     56    0.0%    0.0%  (anonymous namespace)::v8impl::Unwrap(napi_env__*, napi_value__*, void**, (anonymous namespace)::v8impl::UnwrapAction) [clone .part.30]
     55    0.0%    0.0%  v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*)
     54    0.0%    0.0%  node::fs::AfterInteger(uv_fs_s*)
     52    0.0%    0.0%  v8::internal::(anonymous namespace)::ProbeInstantiationsCache(v8::internal::Isolate*, int, v8::internal::(anonymous namespace)::CachingMode)
     51    0.0%    0.0%  node::AsyncWrap::MakeCallback(v8::Local<v8::Function>, int, v8::Local<v8::Value>*)
     51    0.0%    0.0%  (anonymous namespace)::v8impl::FunctionCallbackWrapper::Args(napi_value__**, unsigned long)
     50    0.0%    0.0%  void v8::internal::LookupIterator::NextInternal<false>(v8::internal::Map*, v8::internal::JSReceiver*)
     49    0.0%    0.0%  v8::Value::IsExternal() const
     49    0.0%    0.0%  cfree
     48    0.0%    0.0%  v8::internal::GlobalHandles::Destroy(v8::internal::Object**)
     47    0.0%    0.0%  v8::internal::StringTable::LookupKey(v8::internal::Isolate*, v8::internal::StringTableKey*)
     45    0.0%    0.0%  v8::Value::IsObject() const
     44    0.0%    0.0%  v8::internal::ThreadId::GetCurrentThreadId()
     44    0.0%    0.0%  v8::Locker::IsActive()
     44    0.0%    0.0%  uv__run_check
     43    0.0%    0.0%  node::fs::Read(v8::FunctionCallbackInfo<v8::Value> const&)
     43    0.0%    0.0%  node::fs::FSReqWrap::Resolve(v8::Local<v8::Value>)
     43    0.0%    0.0%  napi_call_function
     42    0.0%    0.0%  v8::internal::HashTable<v8::internal::StringTable, v8::internal::StringTableShape>::FindEntry(v8::internal::Isolate*, v8::internal::StringTableKey*)
     42    0.0%    0.0%  uv__run_prepare
     40    0.0%    0.0%  v8::internal::HandleScope::Extend(v8::internal::Isolate*)
     40    0.0%    0.0%  __clock_gettime
     39    0.0%    0.0%  v8::internal::Heap::AllocateRaw(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment)
     39    0.0%    0.0%  node::fs::WriteBuffer(v8::FunctionCallbackInfo<v8::Value> const&)
     39    0.0%    0.0%  node::fs::FSReqWrap::~FSReqWrap()
     38    0.0%    0.0%  v8::internal::HandleScope::DeleteExtensions(v8::internal::Isolate*)
     38    0.0%    0.0%  napi_get_cb_info
     38    0.0%    0.0%  __GI___pthread_once
     37    0.0%    0.0%  v8::internal::TimerEventScope<v8::internal::TimerEventExecute>::LogTimerEvent(v8::internal::Logger::StartEnd)
     37    0.0%    0.0%  napi_get_reference_value
     37    0.0%    0.0%  _init
     36    0.0%    0.0%  v8::TryCatch::TryCatch(v8::Isolate*)
     36    0.0%    0.0%  strlen
     33    0.0%    0.0%  v8::internal::JSTypedArray::GetBuffer()
     33    0.0%    0.0%  uv_run
     32    0.0%    0.0%  node::AsyncWrap::EmitBefore(node::Environment*, double)
     31    0.0%    0.0%  v8::internal::Isolate::FireCallCompletedCallback()
     31    0.0%    0.0%  v8::Object::InternalFieldCount()
     31    0.0%    0.0%  v8::EscapableHandleScope::Escape(v8::internal::Object**)
     31    0.0%    0.0%  napi_unwrap
     28    0.0%    0.0%  uv__run_idle
     28    0.0%    0.0%  node::contextify::ContextifyScript::New(v8::FunctionCallbackInfo<v8::Value> const&)
     28    0.0%    0.0%  node::AsyncWrap::EmitTraceEventDestroy()
     27    0.0%    0.0%  v8::internal::FunctionCallbackArguments::Call(void (*)(v8::FunctionCallbackInfo<v8::Value> const&))
     27    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<false>::CallDepthScope(v8::internal::Isolate*, v8::Local<v8::Context>)
     27    0.0%    0.0%  __GI___pthread_mutex_unlock
     26    0.0%    0.0%  v8::Value::IsArrayBufferView() const
     25    0.0%    0.0%  uv__work_done
     25    0.0%    0.0%  __errno_location
     24    0.0%    0.0%  v8::internal::Runtime::GetObjectProperty(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, bool*)
     24    0.0%    0.0%  v8::ArrayBuffer::GetContents()
     24    0.0%    0.0%  sigaddset
     24    0.0%    0.0%  __pthread_enable_asynccancel
     23    0.0%    0.0%  v8::internal::Factory::InternalizeUtf8String(v8::internal::Vector<char const>)
     23    0.0%    0.0%  v8::Value::ToObject(v8::Local<v8::Context>) const
     22    0.0%    0.0%  v8::HandleScope::~HandleScope()
     21    0.0%    0.0%  napi_get_named_property
     20    0.0%    0.0%  v8::TryCatch::HasCaught() const
     20    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<true>::~CallDepthScope() [clone .constprop.576]
     20    0.0%    0.0%  node::Environment::CheckImmediate(uv_check_s*)
     19    0.0%    0.0%  v8::Value::Int32Value() const
     18    0.0%    0.0%  void v8::internal::LookupIterator::Start<false>()
     18    0.0%    0.0%  v8::Value::IsNumber() const
     18    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<false>::~CallDepthScope() [clone .constprop.574]
     18    0.0%    0.0%  uv_fs_req_cleanup
     18    0.0%    0.0%  operator delete(void*)
     17    0.0%    0.0%  v8::internal::JSObject::GetHeaderSize(v8::internal::InstanceType, bool)
     16    0.0%    0.0%  v8::internal::Map::IsUnboxedDoubleField(v8::internal::FieldIndex) const
     16    0.0%    0.0%  v8::internal::Isolate::RunMicrotasksInternal()
     16    0.0%    0.0%  v8::internal::Isolate::RunMicrotasks()
     16    0.0%    0.0%  v8::internal::Isolate::RegisterTryCatchHandler(v8::TryCatch*)
     16    0.0%    0.0%  v8::base::Thread::GetThreadLocal(int)
     16    0.0%    0.0%  uv__fs_done
     15    0.0%    0.0%  void v8::internal::CopyWords<v8::internal::Object*>(v8::internal::Object**, v8::internal::Object* const*, unsigned long)
     15    0.0%    0.0%  v8::internal::SaveContext::SaveContext(v8::internal::Isolate*)
     15    0.0%    0.0%  v8::internal::LookupIterator::GetDataValue() const
     15    0.0%    0.0%  v8::String::NewFromUtf8(v8::Isolate*, char const*, v8::NewStringType, int)
     15    0.0%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::SuppressMicrotaskExecutionScope(v8::Isolate*)
     15    0.0%    0.0%  v8::HandleScope::CreateHandle(v8::internal::HeapObject*, v8::internal::Object*)
     15    0.0%    0.0%  operator delete(void*, unsigned long)
     15    0.0%    0.0%  __GI___libc_read
     14    0.0%    0.0%  v8::TryCatch::~TryCatch()
     14    0.0%    0.0%  node::AsyncWrap::EmitAfter(node::Environment*, double)
     13    0.0%    0.0%  v8::internal::Utf8StringKey::IsMatch(v8::internal::Object*)
     13    0.0%    0.0%  v8::EscapableHandleScope::EscapableHandleScope(v8::Isolate*)
     13    0.0%    0.0%  uv_buf_init
     13    0.0%    0.0%  node::fs::GetReqWrap(node::Environment*, v8::Local<v8::Value>)
     12    0.0%    0.0%  uv__hrtime
     11    0.0%    0.0%  uv_fs_read
     11    0.0%    0.0%  uv__run_timers
     11    0.0%    0.0%  uv__epoll_pwait
     11    0.0%    0.0%  uv(float, long double,...)(...)
     10    0.0%    0.0%  v8::HandleScope::HandleScope(v8::Isolate*)
      9    0.0%    0.0%  v8::internal::SaveContext::~SaveContext()
      9    0.0%    0.0%  v8::Isolate::RunMicrotasks()
      9    0.0%    0.0%  v8::CpuProfiler::SetIdle(bool)
      9    0.0%    0.0%  v8::ArrayBufferView::ByteLength()
      9    0.0%    0.0%  uv_fs_write
      9    0.0%    0.0%  uv__next_timeout
      9    0.0%    0.0%  __lll_unlock_wake
      9    0.0%    0.0%  __lll_lock_wait
      8    0.0%    0.0%  v8::Integer::New(v8::Isolate*, int)
      8    0.0%    0.0%  node::AsyncWrap::~AsyncWrap()
      7    0.0%    0.0%  v8::internal::PerIsolateAssertScope<(v8::internal::PerIsolateAssertType)0, true>::IsAllowed(v8::internal::Isolate*)
      7    0.0%    0.0%  v8::internal::Factory::CopyJSObject(v8::internal::Handle<v8::internal::JSObject>)
      7    0.0%    0.0%  v8::Value::Uint32Value() const
      7    0.0%    0.0%  v8::Object::SetAlignedPointerInInternalField(int, void*)
      7    0.0%    0.0%  uv__work_submit
      7    0.0%    0.0%  node::Environment::StartProfilerIdleNotifier()::{lambda(uv_check_s*)#2}::_FUN(uv_check_s*)
      6    0.0%    0.0%  v8::internal::SerializerDeserializer::Iterate(v8::internal::Isolate*, v8::internal::RootVisitor*)
      6    0.0%    0.0%  v8::ArrayBufferView::Buffer()
      5    0.0%    0.0%  v8::internal::Logger::ApiObjectAccess(char const*, v8::internal::JSObject*)
      5    0.0%    0.0%  v8::Value::IntegerValue() const
      5    0.0%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::~SuppressMicrotaskExecutionScope()
      4    0.0%    0.0%  v8::ArrayBufferView::ByteOffset()
      3    0.0%    0.0%  node::fs::FSReqWrap::SetReturnValue(v8::FunctionCallbackInfo<v8::Value> const&)
      3    0.0%    0.0%  node::Environment::StartProfilerIdleNotifier()::{lambda(uv_prepare_s*)#1}::_FUN(uv_prepare_s*)
      3    0.0%    0.0%  node::Buffer::Data(v8::Local<v8::Object>)
      3    0.0%    0.0%  __libc_malloc
      3    0.0%    0.0%  _IO_vfprintf
      2    0.0%    0.0%  write
      2    0.0%    0.0%  v8::internal::Scavenger::Process(v8::internal::OneshotBarrier*)
      2    0.0%    0.0%  v8::internal::RootScavengeVisitor::VisitRootPointer(v8::internal::Root, v8::internal::Object**)
      2    0.0%    0.0%  v8::internal::Heap::Scavenge()
      2    0.0%    0.0%  v8::Value::IsInt32() const
      2    0.0%    0.0%  v8::V8::DisposeGlobal(v8::internal::Object**)
      2    0.0%    0.0%  uv_mutex_unlock
      2    0.0%    0.0%  node::Buffer::Length(v8::Local<v8::Object>)
      2    0.0%    0.0%  node::Binding(v8::FunctionCallbackInfo<v8::Value> const&)
      1    0.0%    0.0%  v8::internal::StackFrame::GetCallerState(v8::internal::StackFrame::State*) const
      1    0.0%    0.0%  v8::internal::Script::GetPositionInfo(int, v8::internal::Script::PositionInfo*, v8::internal::Script::OffsetFlag) const
      1    0.0%    0.0%  v8::internal::Scavenger::ScavengePage(v8::internal::MemoryChunk*)
      1    0.0%    0.0%  v8::internal::ScavengeJob::ScheduleIdleTaskIfNeeded(v8::internal::Heap*, int)
      1    0.0%    0.0%  v8::internal::ParserBase<v8::internal::Parser>::ValidateExpression(bool*)
      1    0.0%    0.0%  v8::internal::ParserBase<v8::internal::Parser>::ParseMemberExpression(bool*, bool*)
      1    0.0%    0.0%  v8::internal::PagedSpace::SizeOfObjects()
      1    0.0%    0.0%  v8::internal::OldSpaces::next()
      1    0.0%    0.0%  v8::internal::NewSpace::UpdateAllocationInfo()
      1    0.0%    0.0%  v8::internal::MemoryChunk::ReleaseAllocatedMemory()
      1    0.0%    0.0%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
      1    0.0%    0.0%  v8::internal::Map::GetBackPointer() const
      1    0.0%    0.0%  v8::internal::LookupIterator::PrepareTransitionToDataProperty(v8::internal::Handle<v8::internal::JSObject>, v8::internal::Handle<v8::internal::Object>, v8::internal::PropertyAttributes, v8::internal::Object::StoreFromKeyed)
      1    0.0%    0.0%  v8::internal::LocalAllocationBuffer::Close()
      1    0.0%    0.0%  v8::internal::Isolate::UnregisterTryCatchHandler(v8::TryCatch*)
      1    0.0%    0.0%  v8::internal::Heap::GetFillToAlign(unsigned char*, v8::internal::AllocationAlignment)
      1    0.0%    0.0%  v8::internal::HandleScopeImplementer::Iterate(v8::internal::RootVisitor*)
      1    0.0%    0.0%  v8::internal::GlobalHandles::DispatchPendingPhantomCallbacks(bool)
      1    0.0%    0.0%  v8::internal::GCTracer::Scope::~Scope()
      1    0.0%    0.0%  v8::internal::Bitmap::Clear()
      1    0.0%    0.0%  v8::internal::AstValueFactory::GetString(unsigned int, bool, v8::internal::Vector<unsigned char const>)
      1    0.0%    0.0%  v8::internal::Accessors::FunctionPrototypeGetter(v8::Local<v8::Name>, v8::PropertyCallbackInfo<v8::Value> const&)
      1    0.0%    0.0%  v8::internal::Accessors::FunctionLengthGetter(v8::Local<v8::Name>, v8::PropertyCallbackInfo<v8::Value> const&)
      1    0.0%    0.0%  uv_mutex_lock
      1    0.0%    0.0%  strchrnul
      1    0.0%    0.0%  std::__detail::_Prime_rehash_policy::_M_next_bkt(unsigned long) const
      1    0.0%    0.0%  node::cares_wrap::(anonymous namespace)::ChannelWrap::New(v8::FunctionCallbackInfo<v8::Value> const&)
      1    0.0%    0.0%  node::NodePlatform::CallOnBackgroundThread(v8::Task*, v8::Platform::ExpectedRuntime)
      1    0.0%    0.0%  fwrite
      1    0.0%    0.0%  do_futex_wait.constprop.3
      1    0.0%    0.0%  __GI___pthread_mutex_init

 [Summary]:
   ticks  total  nonlib   name
   1035    0.5%    0.5%  JavaScript
  187901   98.4%   99.1%  C++
     46    0.0%    0.0%  GC
   1374    0.7%          Shared libraries
    631    0.3%          Unaccounted

 [C++ entry points]:
   ticks    cpp   total   name
   2502   43.2%    1.3%  __pthread_cond_signal
   1091   18.8%    0.6%  v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*)
    113    1.9%    0.1%  (anonymous namespace)::v8impl::FunctionCallbackWrapper::Invoke(v8::FunctionCallbackInfo<v8::Value> const&)
    108    1.9%    0.1%  v8::External::Value() const
     97    1.7%    0.1%  v8::internal::LookupIterator::PropertyOrElement(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, bool*, v8::internal::LookupIterator::Configuration)
     79    1.4%    0.0%  v8::internal::String::IsUtf8EqualTo(v8::internal::Vector<char const>, bool)
     76    1.3%    0.0%  v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*)
     72    1.2%    0.0%  v8::internal::StringHasher::ComputeUtf8Hash(v8::internal::Vector<char const>, unsigned int, int*)
     72    1.2%    0.0%  v8::internal::LookupIterator::State v8::internal::LookupIterator::LookupInRegularHolder<false>(v8::internal::Map*, v8::internal::JSReceiver*)
     63    1.1%    0.0%  v8::internal::Map::FindRootMap() const
     63    1.1%    0.0%  __GI___pthread_mutex_lock
     60    1.0%    0.0%  v8::Isolate::GetCurrentContext()
     56    1.0%    0.0%  (anonymous namespace)::v8impl::Unwrap(napi_env__*, napi_value__*, void**, (anonymous namespace)::v8impl::UnwrapAction) [clone .part.30]
     51    0.9%    0.0%  (anonymous namespace)::v8impl::FunctionCallbackWrapper::Args(napi_value__**, unsigned long)
     50    0.9%    0.0%  void v8::internal::LookupIterator::NextInternal<false>(v8::internal::Map*, v8::internal::JSReceiver*)
     49    0.8%    0.0%  v8::Value::IsExternal() const
     47    0.8%    0.0%  v8::internal::StringTable::LookupKey(v8::internal::Isolate*, v8::internal::StringTableKey*)
     45    0.8%    0.0%  v8::Value::IsObject() const
     43    0.7%    0.0%  napi_call_function
     42    0.7%    0.0%  v8::internal::HashTable<v8::internal::StringTable, v8::internal::StringTableShape>::FindEntry(v8::internal::Isolate*, v8::internal::StringTableKey*)
     40    0.7%    0.0%  node::fs::Read(v8::FunctionCallbackInfo<v8::Value> const&)
     38    0.7%    0.0%  napi_get_cb_info
     38    0.7%    0.0%  __GI___pthread_once
     37    0.6%    0.0%  napi_get_reference_value
     36    0.6%    0.0%  v8::TryCatch::TryCatch(v8::Isolate*)
     36    0.6%    0.0%  strlen
     35    0.6%    0.0%  node::fs::WriteBuffer(v8::FunctionCallbackInfo<v8::Value> const&)
     33    0.6%    0.0%  v8::internal::JSTypedArray::GetBuffer()
     33    0.6%    0.0%  v8::internal::JSObject::FastPropertyAt(v8::internal::Handle<v8::internal::JSObject>, v8::internal::Representation, v8::internal::FieldIndex)
     31    0.5%    0.0%  v8::Function::Call(v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>*)
     31    0.5%    0.0%  napi_unwrap
     27    0.5%    0.0%  v8::Value::IsFunction() const
     26    0.4%    0.0%  v8::Value::IsArrayBufferView() const
     24    0.4%    0.0%  v8::internal::LookupIterator::FetchValue() const [clone .part.49]
     24    0.4%    0.0%  v8::ArrayBuffer::GetContents()
     23    0.4%    0.0%  v8::internal::Factory::InternalizeUtf8String(v8::internal::Vector<char const>)
     23    0.4%    0.0%  v8::Value::ToObject(v8::Local<v8::Context>) const
     23    0.4%    0.0%  v8::Object::Get(v8::Local<v8::Context>, v8::Local<v8::Value>)
     21    0.4%    0.0%  napi_get_named_property
     20    0.3%    0.0%  v8::TryCatch::HasCaught() const
     19    0.3%    0.0%  v8::Value::Int32Value() const
     18    0.3%    0.0%  v8::Value::IsNumber() const
     16    0.3%    0.0%  v8::internal::Logger::ApiEntryCall(char const*)
     16    0.3%    0.0%  v8::internal::Isolate::RegisterTryCatchHandler(v8::TryCatch*)
     16    0.3%    0.0%  v8::EscapableHandleScope::Escape(v8::internal::Object**)
     15    0.3%    0.0%  v8::String::NewFromUtf8(v8::Isolate*, char const*, v8::NewStringType, int)
     15    0.3%    0.0%  v8::HandleScope::Initialize(v8::Isolate*)
     15    0.3%    0.0%  v8::HandleScope::CreateHandle(v8::internal::HeapObject*, v8::internal::Object*)
     14    0.2%    0.0%  v8::TryCatch::~TryCatch()
     14    0.2%    0.0%  v8::(anonymous namespace)::CallDepthScope<true>::~CallDepthScope() [clone .constprop.576]
     14    0.2%    0.0%  v8::(anonymous namespace)::CallDepthScope<true>::CallDepthScope(v8::internal::Isolate*, v8::Local<v8::Context>)
     13    0.2%    0.0%  v8::internal::Utf8StringKey::IsMatch(v8::internal::Object*)
     13    0.2%    0.0%  uv_buf_init
     13    0.2%    0.0%  node::fs::GetReqWrap(node::Environment*, v8::Local<v8::Value>)
     12    0.2%    0.0%  v8::(anonymous namespace)::CallDepthScope<false>::CallDepthScope(v8::internal::Isolate*, v8::Local<v8::Context>)
     12    0.2%    0.0%  _init
     11    0.2%    0.0%  void v8::internal::LookupIterator::Start<false>()
     11    0.2%    0.0%  v8::internal::Isolate::FireCallCompletedCallback()
     11    0.2%    0.0%  v8::Object::InternalFieldCount()
     11    0.2%    0.0%  uv_fs_read
     10    0.2%    0.0%  v8::internal::Runtime::GetObjectProperty(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, bool*)
      9    0.2%    0.0%  v8::ArrayBufferView::ByteLength()
      9    0.2%    0.0%  uv_fs_write
      8    0.1%    0.0%  v8::HandleScope::~HandleScope()
      8    0.1%    0.0%  __GI___pthread_getspecific
      7    0.1%    0.0%  v8::Value::Uint32Value() const
      7    0.1%    0.0%  uv__work_submit
      6    0.1%    0.0%  v8::internal::TimerEventScope<v8::internal::TimerEventExecute>::LogTimerEvent(v8::internal::Logger::StartEnd)
      6    0.1%    0.0%  v8::internal::Object::GetProperty(v8::internal::LookupIterator*)
      6    0.1%    0.0%  v8::ArrayBufferView::Buffer()
      5    0.1%    0.0%  v8::Value::IntegerValue() const
      5    0.1%    0.0%  __lll_unlock_wake
      4    0.1%    0.0%  v8::internal::ThreadId::GetCurrentThreadId()
      4    0.1%    0.0%  v8::internal::SaveContext::~SaveContext()
      4    0.1%    0.0%  v8::internal::SaveContext::SaveContext(v8::internal::Isolate*)
      4    0.1%    0.0%  v8::EscapableHandleScope::EscapableHandleScope(v8::Isolate*)
      4    0.1%    0.0%  v8::ArrayBufferView::ByteOffset()
      3    0.1%    0.0%  v8::internal::Runtime_CompileLazy(int, v8::internal::Object**, v8::internal::Isolate*)
      3    0.1%    0.0%  v8::Locker::IsActive()
      3    0.1%    0.0%  node::fs::FSReqWrap::SetReturnValue(v8::FunctionCallbackInfo<v8::Value> const&)
      3    0.1%    0.0%  node::Buffer::Data(v8::Local<v8::Object>)
      2    0.0%    0.0%  v8::internal::Runtime_StoreIC_Miss(int, v8::internal::Object**, v8::internal::Isolate*)
      2    0.0%    0.0%  v8::internal::Runtime_DeserializeLazy(int, v8::internal::Object**, v8::internal::Isolate*)
      2    0.0%    0.0%  v8::internal::LookupIterator::GetDataValue() const
      2    0.0%    0.0%  v8::Value::IsInt32() const
      2    0.0%    0.0%  node::Buffer::Length(v8::Local<v8::Object>)
      1    0.0%    0.0%  v8::internal::Runtime_LoadIC_Miss(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::Runtime_GetOwnPropertyDescriptor(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::Runtime_CompileOptimized_Concurrent(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::Runtime_AllocateInNewSpace(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
      1    0.0%    0.0%  v8::internal::Map::IsUnboxedDoubleField(v8::internal::FieldIndex) const
      1    0.0%    0.0%  v8::internal::JSObject::GetHeaderSize(v8::internal::InstanceType, bool)
      1    0.0%    0.0%  v8::internal::Isolate::UnregisterTryCatchHandler(v8::TryCatch*)
      1    0.0%    0.0%  v8::base::Thread::GetThreadLocal(int)
      1    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<false>::~CallDepthScope() [clone .constprop.574]

 [Bottom up (heavy) profile]:
  Note: percentage shows a share of a particular caller in the total
  amount of its parent calls.
  Callers occupying less than 1.0% are not shown.

   ticks parent  name
  178639   93.6%  syscall

   2504    1.3%  __pthread_cond_signal
   1283   51.2%    LazyCompile: *FileSource.pull /home/jeremiah/Documents/bob/fs/file-source.js:89:37
   1277   99.5%      Stub: CallApiCallbackStub
   1277  100.0%        LazyCompile: *fs.write /home/jeremiah/Documents/bob/fs/file-sink.js:128:46
   1277  100.0%          LazyCompile: *wrapper fs.js:852:19
   1216   48.6%    LazyCompile: *next /home/jeremiah/Documents/bob/fs/file-sink.js:111:41
   1214   99.8%      Stub: CallApiCallbackStub {1}
   1214  100.0%        LazyCompile: *fs.read /home/jeremiah/Documents/bob/fs/file-source.js:128:56
   1214  100.0%          LazyCompile: *wrapper fs.js:814:19

Statistical profiling result from isolate-f2f-streams3-v8.log, (203588 ticks, 1590 unaccounted, 0 excluded).

 [Shared libraries]:
   ticks  total  nonlib   name
   1605    0.8%          /lib/x86_64-linux-gnu/libpthread-2.23.so
    763    0.4%          /lib/x86_64-linux-gnu/libc-2.23.so
    118    0.1%          [vdso]
     15    0.0%          /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21
      1    0.0%          /lib/x86_64-linux-gnu/libm-2.23.so
      1    0.0%          /lib/x86_64-linux-gnu/ld-2.23.so

 [JavaScript]:
   ticks  total  nonlib   name
    511    0.3%    0.3%  LazyCompile: *Readable.read _stream_readable.js:365:35
    368    0.2%    0.2%  Builtin: CompileLazy
    362    0.2%    0.2%  Builtin: LoadIC
    279    0.1%    0.1%  LazyCompile: *_tickCallback internal/process/next_tick.js:92:25
    260    0.1%    0.1%  LazyCompile: *fs.read fs.js:2318:55
    229    0.1%    0.1%  LazyCompile: *readableAddChunk _stream_readable.js:213:26
    224    0.1%    0.1%  LazyCompile: *ondata _stream_readable.js:644:18
    211    0.1%    0.1%  LazyCompile: *nextTick internal/process/next_tick.js:146:20
    197    0.1%    0.1%  Builtin: KeyedLoadIC_Megamorphic
    145    0.1%    0.1%  Builtin: CallFunction_ReceiverIsAny
    141    0.1%    0.1%  LazyCompile: *<anonymous> _stream_readable.js:707:18
    132    0.1%    0.1%  Builtin: CallFunction_ReceiverIsNotNullOrUndefined
    123    0.1%    0.1%  LazyCompile: *WriteStream._write fs.js:2443:40
    115    0.1%    0.1%  Builtin: JSConstructStubGenericUnrestrictedReturn
    114    0.1%    0.1%  Stub: JSEntryStub
    114    0.1%    0.1%  Builtin: KeyedLoadIC
    113    0.1%    0.1%  Builtin: ArgumentsAdaptorTrampoline
    110    0.1%    0.1%  Builtin: RecordWrite
    104    0.1%    0.1%  Builtin: KeyedLoadIC_PolymorphicName
     91    0.0%    0.0%  LazyCompile: *fs.write fs.js:2458:53
     79    0.0%    0.0%  Builtin: FastNewObject
     78    0.0%    0.0%  LazyCompile: *emitPromiseRejectionWarnings internal/process/promises.js:86:38
     76    0.0%    0.0%  LazyCompile: *wrapper fs.js:814:19
     72    0.0%    0.0%  Builtin: JSEntryTrampoline
     68    0.0%    0.0%  LazyCompile: *Uint8Array native typedarray.js:154:31
     67    0.0%    0.0%  Builtin: CallWithArrayLike
     65    0.0%    0.0%  LazyCompile: *validateBuffer fs.js:174:24
     63    0.0%    0.0%  LazyCompile: *emitReadable _stream_readable.js:510:22
     62    0.0%    0.0%  Builtin: TypedArrayInitializeWithBuffer
     58    0.0%    0.0%  Builtin: JSConstructStubApi
     54    0.0%    0.0%  Builtin: Call_ReceiverIsAny
     53    0.0%    0.0%  LazyCompile: *afterWrite _stream_writable.js:459:20
     48    0.0%    0.0%  LazyCompile: *maybeReadMore_ _stream_readable.js:544:24
     45    0.0%    0.0%  Builtin: ClassOf
     44    0.0%    0.0%  LazyCompile: *adjustOffset buffer.js:998:22
     43    0.0%    0.0%  Stub: CEntryStub {1}
     41    0.0%    0.0%  LazyCompile: *Transform._read _stream_transform.js:180:37
     40    0.0%    0.0%  Builtin: Divide
     39    0.0%    0.0%  LazyCompile: *fromList _stream_readable.js:979:18
     34    0.0%    0.0%  LazyCompile: *validateUint32 fs.js:273:24
     34    0.0%    0.0%  LazyCompile: *push internal/streams/BufferList.js:17:7
     33    0.0%    0.0%  Builtin: InterpreterEntryTrampoline
     32    0.0%    0.0%  Stub: CallApiCallbackStub {1}
     30    0.0%    0.0%  LazyCompile: *Transform._write _stream_transform.js:163:38
     28    0.0%    0.0%  Stub: CEntryStub
     28    0.0%    0.0%  LazyCompile: *emitReadable_ _stream_readable.js:520:23
     28    0.0%    0.0%  Builtin: LoadICTrampoline
     26    0.0%    0.0%  LazyCompile: *wrapper fs.js:852:19
     24    0.0%    0.0%  Builtin: StrictEqual
     24    0.0%    0.0%  Builtin: CallFunction_ReceiverIsNullOrUndefined
     23    0.0%    0.0%  Builtin: GreaterThan
     22    0.0%    0.0%  Builtin: Add
     21    0.0%    0.0%  Builtin: HandleApiCall
     19    0.0%    0.0%  Builtin: Modulus
     19    0.0%    0.0%  Builtin: LessThan
     15    0.0%    0.0%  LazyCompile: *emit events.js:101:44
     14    0.0%    0.0%  Builtin: StoreIC
     14    0.0%    0.0%  Builtin: Equal
     13    0.0%    0.0%  Builtin: TypedArrayConstructByArrayBuffer
     11    0.0%    0.0%  LazyCompile: *Readable.push _stream_readable.js:188:35
     11    0.0%    0.0%  Builtin: Call_ReceiverIsNullOrUndefined
     10    0.0%    0.0%  Builtin: Subtract
     10    0.0%    0.0%  Builtin: KeyedLoadICTrampoline
     10    0.0%    0.0%  Builtin: CallForwardVarargs
      9    0.0%    0.0%  Builtin: CallVarargs
      8    0.0%    0.0%  LazyCompile: *PassThrough._transform _stream_passthrough.js:41:44
      7    0.0%    0.0%  Builtin: AdaptorWithExitFrame
      6    0.0%    0.0%  Stub: CallApiCallbackStub
      6    0.0%    0.0%  LazyCompile: *slice buffer.js:1014:40
      6    0.0%    0.0%  Builtin: NumberParseInt
      6    0.0%    0.0%  Builtin: NumberIsSafeInteger
      5    0.0%    0.0%  LazyCompile: *onwrite _stream_writable.js:431:17
      5    0.0%    0.0%  LazyCompile: *afterTransform _stream_transform.js:73:24
      4    0.0%    0.0%  LazyCompile: *howMuchToRead _stream_readable.js:339:23
      3    0.0%    0.0%  LazyCompile: *debugs.(anonymous function) util.js:259:29
      3    0.0%    0.0%  LazyCompile: *chunkInvalid _stream_readable.js:278:22
      3    0.0%    0.0%  Builtin: KeyedStoreIC
      2    0.0%    0.0%  Builtin: MathMin
      2    0.0%    0.0%  Builtin: Construct
      2    0.0%    0.0%  Builtin: Call_ReceiverIsNotNullOrUndefined
      2    0.0%    0.0%  Builtin: CallBoundFunction
      2    0.0%    0.0%  Builtin: AdaptorWithBuiltinExitFrame
      1    0.0%    0.0%  Stub: StoreFastElementStub
      1    0.0%    0.0%  LazyCompile: *validateOffsetLengthRead fs.js:195:34
      1    0.0%    0.0%  LazyCompile: *getDefaultTriggerAsyncId internal/async_hooks.js:264:34
      1    0.0%    0.0%  LazyCompile: *fs.write fs.js:851:20
      1    0.0%    0.0%  LazyCompile: *emitBeforeScript internal/async_hooks.js:314:26
      1    0.0%    0.0%  LazyCompile: *emitAfterScript internal/async_hooks.js:328:25
      1    0.0%    0.0%  LazyCompile: *doWrite _stream_writable.js:388:17
      1    0.0%    0.0%  Builtin: StringEqual
      1    0.0%    0.0%  Builtin: ObjectGetPrototypeOf
      1    0.0%    0.0%  Builtin: MathTrunc
      1    0.0%    0.0%  Builtin: LoadIC_FunctionPrototype
      1    0.0%    0.0%  Builtin: KeyedStoreIC_Megamorphic

 [C++]:
   ticks  total  nonlib   name
  179603   88.2%   89.3%  syscall
   3298    1.6%    1.6%  __pthread_cond_signal
    837    0.4%    0.4%  node::fs::NewFSReqWrap(v8::FunctionCallbackInfo<v8::Value> const&)
    427    0.2%    0.2%  v8::internal::LookupIterator::PropertyOrElement(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, bool*, v8::internal::LookupIterator::Configuration)
    399    0.2%    0.2%  v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*)
    333    0.2%    0.2%  v8::Context::Enter()
    198    0.1%    0.1%  node::InternalCallbackScope::InternalCallbackScope(node::Environment*, v8::Local<v8::Object>, node::async_context const&, node::InternalCallbackScope::ResourceExpectation)
    190    0.1%    0.1%  v8::internal::LookupIterator::State v8::internal::LookupIterator::LookupInRegularHolder<false>(v8::internal::Map*, v8::internal::JSReceiver*)
    183    0.1%    0.1%  uv__io_poll
    174    0.1%    0.1%  uv__async_io
    170    0.1%    0.1%  v8::internal::Heap::CopyJSObject(v8::internal::JSObject*, v8::internal::AllocationSite*)
    162    0.1%    0.1%  __GI___pthread_mutex_lock
    161    0.1%    0.1%  v8::internal::Runtime_StringParseInt(int, v8::internal::Object**, v8::internal::Isolate*)
    161    0.1%    0.1%  v8::internal::Heap::AllocateRaw(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment)
    157    0.1%    0.1%  node::AsyncWrap::EmitTraceEventBefore()
    156    0.1%    0.1%  node::fs::AfterInteger(uv_fs_s*)
    147    0.1%    0.1%  v8::Object::Get(v8::Local<v8::Value>)
    147    0.1%    0.1%  node::InternalCallbackScope::Close()
    139    0.1%    0.1%  node::InternalMakeCallback(node::Environment*, v8::Local<v8::Object>, v8::Local<v8::Function>, int, v8::Local<v8::Value>*, node::async_context)
    137    0.1%    0.1%  v8::Value::IsFunction() const
    137    0.1%    0.1%  __GI___pthread_getspecific
    133    0.1%    0.1%  cfree
    131    0.1%    0.1%  v8::Object::Get(v8::Local<v8::Context>, v8::Local<v8::Value>)
    125    0.1%    0.1%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<true>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
    120    0.1%    0.1%  __lll_unlock_wake
    119    0.1%    0.1%  node::AsyncWrap::EmitTraceEventAfter()
    117    0.1%    0.1%  v8::Isolate::GetCurrentContext()
    114    0.1%    0.1%  v8::internal::Object::GetProperty(v8::internal::LookupIterator*)
    114    0.1%    0.1%  v8::internal::Heap::RegisterNewArrayBuffer(v8::internal::JSArrayBuffer*)
    108    0.1%    0.1%  v8::internal::Builtin_ObjectGetPrototypeOf(int, v8::internal::Object**, v8::internal::Isolate*)
    107    0.1%    0.1%  v8::HandleScope::Initialize(v8::Isolate*)
    107    0.1%    0.1%  v8::Function::Call(v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>*)
    103    0.1%    0.1%  v8::internal::Logger::ApiEntryCall(char const*)
     92    0.0%    0.0%  v8::internal::GlobalHandles::Destroy(v8::internal::Object**)
     89    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<true>::CallDepthScope(v8::internal::Isolate*, v8::Local<v8::Context>)
     88    0.0%    0.0%  __libc_malloc
     86    0.0%    0.0%  v8::internal::TimerEventScope<v8::internal::TimerEventExecute>::LogTimerEvent(v8::internal::Logger::StartEnd)
     83    0.0%    0.0%  node::fs::FSReqWrap::Resolve(v8::Local<v8::Value>)
     76    0.0%    0.0%  v8::internal::ApiNatives::InstantiateObject(v8::internal::Handle<v8::internal::ObjectTemplateInfo>, v8::internal::Handle<v8::internal::JSReceiver>)
     74    0.0%    0.0%  v8::internal::Map::FindRootMap() const
     74    0.0%    0.0%  v8::internal::JSObject::FastPropertyAt(v8::internal::Handle<v8::internal::JSObject>, v8::internal::Representation, v8::internal::FieldIndex)
     73    0.0%    0.0%  v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*)
     73    0.0%    0.0%  v8::Locker::IsActive()
     73    0.0%    0.0%  v8::Context::Exit()
     73    0.0%    0.0%  sigemptyset
     72    0.0%    0.0%  uv__run_check
     72    0.0%    0.0%  __GI___pthread_once
     71    0.0%    0.0%  v8::internal::Heap::InitializeJSObjectFromMap(v8::internal::JSObject*, v8::internal::Object*, v8::internal::Map*)
     70    0.0%    0.0%  v8::Object::InternalFieldCount()
     69    0.0%    0.0%  v8::internal::StringToInt(v8::internal::Isolate*, v8::internal::Handle<v8::internal::String>, int)
     68    0.0%    0.0%  _init
     63    0.0%    0.0%  v8::internal::ThreadId::GetCurrentThreadId()
     63    0.0%    0.0%  node::fs::Read(v8::FunctionCallbackInfo<v8::Value> const&)
     63    0.0%    0.0%  node::fs::FSReqWrap::~FSReqWrap()
     62    0.0%    0.0%  v8::internal::(anonymous namespace)::ProbeInstantiationsCache(v8::internal::Isolate*, int, v8::internal::(anonymous namespace)::CachingMode)
     61    0.0%    0.0%  v8::internal::JSObject::GetHeaderSize(v8::internal::InstanceType, bool)
     61    0.0%    0.0%  __libc_realloc
     60    0.0%    0.0%  v8::internal::ArrayBufferTracker::PrepareToFreeDeadInNewSpace(v8::internal::Heap*)
     59    0.0%    0.0%  v8::CpuProfiler::SetIdle(bool)
     59    0.0%    0.0%  node::fs::WriteBuffer(v8::FunctionCallbackInfo<v8::Value> const&)
     58    0.0%    0.0%  node::AsyncWrap::MakeCallback(v8::Local<v8::Function>, int, v8::Local<v8::Value>*)
     56    0.0%    0.0%  void v8::internal::(anonymous namespace)::StringToIntHelper::DetectRadixInternal<unsigned char const*>(unsigned char const*, int)
     56    0.0%    0.0%  v8::internal::Object::ConvertToString(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>)
     56    0.0%    0.0%  uv_run
     56    0.0%    0.0%  uv__fs_done
     55    0.0%    0.0%  v8::internal::LookupIterator::FetchValue() const [clone .part.49]
     55    0.0%    0.0%  uv__run_prepare
     55    0.0%    0.0%  __errno_location
     53    0.0%    0.0%  __clock_gettime
     52    0.0%    0.0%  v8::internal::Isolate::FireCallCompletedCallback()
     51    0.0%    0.0%  v8::EscapableHandleScope::Escape(v8::internal::Object**)
     51    0.0%    0.0%  uv__run_timers
     49    0.0%    0.0%  v8::Value::IsExternal() const
     46    0.0%    0.0%  v8::internal::SaveContext::SaveContext(v8::internal::Isolate*)
     45    0.0%    0.0%  v8::Function::Call(v8::Local<v8::Value>, int, v8::Local<v8::Value>*)
     45    0.0%    0.0%  std::__detail::_Prime_rehash_policy::_M_need_rehash(unsigned long, unsigned long, unsigned long) const
     45    0.0%    0.0%  __GI___pthread_mutex_unlock
     44    0.0%    0.0%  v8::internal::Heap::AllocateHeapNumber(v8::internal::MutableMode, v8::internal::PretenureFlag)
     44    0.0%    0.0%  v8::internal::HandleScope::Extend(v8::internal::Isolate*)
     44    0.0%    0.0%  v8::internal::Builtin_TypedArrayPrototypeBuffer(int, v8::internal::Object**, v8::internal::Isolate*)
     44    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<true>::~CallDepthScope() [clone .constprop.576]
     43    0.0%    0.0%  node::AsyncWrap::EmitBefore(node::Environment*, double)
     43    0.0%    0.0%  __lll_lock_wait
     43    0.0%    0.0%  __GI___libc_read
     42    0.0%    0.0%  v8::ArrayBuffer::GetContents()
     42    0.0%    0.0%  uv__work_done
     41    0.0%    0.0%  v8::internal::JSTypedArray::GetBuffer()
     41    0.0%    0.0%  operator delete(void*, unsigned long)
     38    0.0%    0.0%  v8::internal::Runtime::GetObjectProperty(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, bool*)
     37    0.0%    0.0%  v8::External::Value() const
     37    0.0%    0.0%  uv_fs_req_cleanup
     36    0.0%    0.0%  v8::internal::JSArrayBuffer::Setup(v8::internal::Handle<v8::internal::JSArrayBuffer>, v8::internal::Isolate*, bool, void*, unsigned long, void*, unsigned long, v8::internal::SharedFlag)
     35    0.0%    0.0%  v8::internal::LookupIterator::GetDataValue() const
     35    0.0%    0.0%  v8::HandleScope::~HandleScope()
     34    0.0%    0.0%  v8::internal::SaveContext::~SaveContext()
     33    0.0%    0.0%  node::(anonymous namespace)::RunMicrotasks(v8::FunctionCallbackInfo<v8::Value> const&)
     31    0.0%    0.0%  v8::internal::Isolate::RunMicrotasks()
     31    0.0%    0.0%  node::ArrayBufferAllocator::Allocate(unsigned long)
     30    0.0%    0.0%  node::AsyncWrap::EmitTraceEventDestroy()
     29    0.0%    0.0%  v8::Value::Int32Value() const
     29    0.0%    0.0%  sigaddset
     29    0.0%    0.0%  operator delete(void*)
     28    0.0%    0.0%  v8::internal::JSObject::New(v8::internal::Handle<v8::internal::JSFunction>, v8::internal::Handle<v8::internal::JSReceiver>, v8::internal::Handle<v8::internal::AllocationSite>)
     27    0.0%    0.0%  v8::internal::Builtin_ArrayBufferConstructor_ConstructStub(int, v8::internal::Object**, v8::internal::Isolate*)
     26    0.0%    0.0%  v8::base::Thread::GetThreadLocal(int)
     26    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<false>::~CallDepthScope() [clone .constprop.574]
     25    0.0%    0.0%  v8::internal::HandleScope::DeleteExtensions(v8::internal::Isolate*)
     25    0.0%    0.0%  v8::internal::FunctionCallbackArguments::Call(void (*)(v8::FunctionCallbackInfo<v8::Value> const&))
     25    0.0%    0.0%  v8::internal::Factory::NewJSObjectFromMap(v8::internal::Handle<v8::internal::Map>, v8::internal::PretenureFlag, v8::internal::Handle<v8::internal::AllocationSite>)
     24    0.0%    0.0%  v8::internal::Map::IsUnboxedDoubleField(v8::internal::FieldIndex) const
     24    0.0%    0.0%  v8::internal::Factory::CopyJSObject(v8::internal::Handle<v8::internal::JSObject>)
     24    0.0%    0.0%  v8::(anonymous namespace)::CallDepthScope<false>::CallDepthScope(v8::internal::Isolate*, v8::Local<v8::Context>)
     24    0.0%    0.0%  uv__run_idle
     24    0.0%    0.0%  uv(float, long double,...)(...)
     24    0.0%    0.0%  std::_Hashtable<v8::internal::JSArrayBuffer*, v8::internal::JSArrayBuffer*, std::allocator<v8::internal::JSArrayBuffer*>, std::__detail::_Identity, std::equal_to<v8::internal::JSArrayBuffer*>, v8::internal::LocalArrayBufferTracker::Hasher, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, true, true> >::_M_insert_unique_node(unsigned long, unsigned long, std::__detail::_Hash_node<v8::internal::JSArrayBuffer*, true>*)
     23    0.0%    0.0%  v8::internal::Factory::NewNumber(double, v8::internal::PretenureFlag)
     23    0.0%    0.0%  v8::Value::IsObject() const
     23    0.0%    0.0%  v8::Object::SetAlignedPointerInInternalField(int, void*)
     23    0.0%    0.0%  node::Environment::StartProfilerIdleNotifier()::{lambda(uv_check_s*)#2}::_FUN(uv_check_s*)
     23    0.0%    0.0%  node::AsyncWrap::EmitAfter(node::Environment*, double)
     22    0.0%    0.0%  v8::internal::IncrementalMarking::Step(unsigned long, v8::internal::IncrementalMarking::CompletionAction, v8::internal::StepOrigin, v8::internal::WorklistToProcess)
     22    0.0%    0.0%  v8::Value::IsArrayBufferView() const
     20    0.0%    0.0%  void v8::internal::LookupIterator::Start<false>()
     20    0.0%    0.0%  v8::internal::JSFunction::EnsureHasInitialMap(v8::internal::Handle<v8::internal::JSFunction>)
     19    0.0%    0.0%  v8::internal::Isolate::RunMicrotasksInternal()
     19    0.0%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::SuppressMicrotaskExecutionScope(v8::Isolate*)
     19    0.0%    0.0%  uv_buf_init
     19    0.0%    0.0%  uv__next_timeout
     19    0.0%    0.0%  node::Environment::CheckImmediate(uv_check_s*)
     18    0.0%    0.0%  node::contextify::ContextifyScript::New(v8::FunctionCallbackInfo<v8::Value> const&)
     18    0.0%    0.0%  __pthread_enable_asynccancel
     17    0.0%    0.0%  uv__work_submit
     17    0.0%    0.0%  node::AsyncWrap::~AsyncWrap()
     16    0.0%    0.0%  v8::internal::PerIsolateAssertScope<(v8::internal::PerIsolateAssertType)0, true>::IsAllowed(v8::internal::Isolate*)
     16    0.0%    0.0%  v8::Value::IsNumber() const
     16    0.0%    0.0%  uv__epoll_pwait
     15    0.0%    0.0%  v8::Value::Uint32Value() const
     15    0.0%    0.0%  v8::ArrayBufferView::ByteLength()
     15    0.0%    0.0%  v8::ArrayBufferView::Buffer()
     15    0.0%    0.0%  uv_fs_read
     14    0.0%    0.0%  v8::internal::StoreBuffer::MoveEntriesToRememberedSet(int)
     14    0.0%    0.0%  v8::internal::Heap::InitializeJSObjectBody(v8::internal::JSObject*, v8::internal::Map*, int)
     14    0.0%    0.0%  uv__hrtime
     14    0.0%    0.0%  std::_Hashtable<v8::internal::JSArrayBuffer*, v8::internal::JSArrayBuffer*, std::allocator<v8::internal::JSArrayBuffer*>, std::__detail::_Identity, std::equal_to<v8::internal::JSArrayBuffer*>, v8::internal::LocalArrayBufferTracker::Hasher, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, true, true> >::erase(std::__detail::_Node_const_iterator<v8::internal::JSArrayBuffer*, true, true>)
     14    0.0%    0.0%  bool v8::base::AsAtomic32::SetBits<unsigned int>(unsigned int*, unsigned int, unsigned int)
     13    0.0%    0.0%  v8::internal::compiler::GraphReducer::ReduceTop()
     13    0.0%    0.0%  v8::internal::String::GetFlatContent()
     13    0.0%    0.0%  v8::internal::Scavenger::ScavengePage(v8::internal::MemoryChunk*)
     13    0.0%    0.0%  v8::internal::JSArrayBuffer::SetupAllocatingData(v8::internal::Handle<v8::internal::JSArrayBuffer>, v8::internal::Isolate*, unsigned long, bool, v8::internal::SharedFlag)
     13    0.0%    0.0%  v8::Integer::New(v8::Isolate*, int)
     13    0.0%    0.0%  v8::HandleScope::HandleScope(v8::Isolate*)
     13    0.0%    0.0%  v8::EscapableHandleScope::EscapableHandleScope(v8::Isolate*)
     12    0.0%    0.0%  void v8::internal::CopyWords<v8::internal::Object*>(v8::internal::Object**, v8::internal::Object* const*, unsigned long)
     12    0.0%    0.0%  v8::internal::SerializerDeserializer::Iterate(v8::internal::Isolate*, v8::internal::RootVisitor*)
     12    0.0%    0.0%  node::fs::GetReqWrap(node::Environment*, v8::Local<v8::Value>)
     12    0.0%    0.0%  node::Buffer::Data(v8::Local<v8::Object>)
     11    0.0%    0.0%  v8::internal::Factory::NewHeapNumber(v8::internal::MutableMode, v8::internal::PretenureFlag)
     11    0.0%    0.0%  uv_fs_write
     10    0.0%    0.0%  v8::internal::Heap::RecordWrite(v8::internal::Object*, v8::internal::Object**, v8::internal::Object*)
     10    0.0%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::~SuppressMicrotaskExecutionScope()
     10    0.0%    0.0%  v8::Isolate::CheckMemoryPressure()
      8    0.0%    0.0%  void v8::internal::BodyDescriptorBase::IteratePointers<v8::internal::MarkingVisitor<(v8::internal::FixedArrayVisitationMode)1, (v8::internal::TraceRetainingPathMode)1, v8::internal::IncrementalMarkingState> >(v8::internal::HeapObject*, int, int, v8::internal::MarkingVisitor<(v8::internal::FixedArrayVisitationMode)1, (v8::internal::TraceRetainingPathMode)1, v8::internal::IncrementalMarkingState>*)
      8    0.0%    0.0%  v8::internal::RootScavengeVisitor::VisitRootPointer(v8::internal::Root, v8::internal::Object**)
      8    0.0%    0.0%  v8::internal::Heap::CheckMemoryPressure()
      8    0.0%    0.0%  v8::internal::Heap::Allocate(v8::internal::Map*, v8::internal::AllocationSpace, v8::internal::AllocationSite*)
      7    0.0%    0.0%  v8::internal::Logger::ApiObjectAccess(char const*, v8::internal::JSObject*)
      7    0.0%    0.0%  v8::internal::Heap::Scavenge()
      7    0.0%    0.0%  v8::Isolate::RunMicrotasks()
      7    0.0%    0.0%  node::fs::FSReqWrap::SetReturnValue(v8::FunctionCallbackInfo<v8::Value> const&)
      7    0.0%    0.0%  node::Environment::StartProfilerIdleNotifier()::{lambda(uv_prepare_s*)#1}::_FUN(uv_prepare_s*)
      6    0.0%    0.0%  v8::internal::compiler::GraphTrimmer::TrimGraph()
      6    0.0%    0.0%  v8::internal::JSDate::set_value(v8::internal::Object*, v8::internal::WriteBarrierMode) [clone .constprop.574]
      6    0.0%    0.0%  v8::internal::Bitmap::Clear()
      6    0.0%    0.0%  v8::internal::(anonymous namespace)::ConstructBuffer(v8::internal::Isolate*, v8::internal::Handle<v8::internal::JSFunction>, v8::internal::Handle<v8::internal::JSReceiver>, v8::internal::Handle<v8::internal::Object>, bool)
      5    0.0%    0.0%  void std::vector<v8::internal::JSArrayBuffer::Allocation, std::allocator<v8::internal::JSArrayBuffer::Allocation> >::_M_emplace_back_aux<void*&, unsigned long, v8::ArrayBuffer::Allocator::AllocationMode>(void*&, unsigned long&&, v8::ArrayBuffer::Allocator::AllocationMode&&)
      5    0.0%    0.0%  v8::internal::Scavenger::ScavengeObject(v8::internal::HeapObject**, v8::internal::HeapObject*) [clone .constprop.215]
      5    0.0%    0.0%  v8::internal::MemoryReducer::NotifyPossibleGarbage(v8::internal::MemoryReducer::Event const&)
      5    0.0%    0.0%  v8::internal::JSFunction::GetDerivedMap(v8::internal::Isolate*, v8::internal::Handle<v8::internal::JSFunction>, v8::internal::Handle<v8::internal::JSReceiver>)
      5    0.0%    0.0%  v8::internal::Heap::AllocateJSObjectFromMap(v8::internal::Map*, v8::internal::PretenureFlag, v8::internal::AllocationSite*)
      5    0.0%    0.0%  v8::Value::IntegerValue() const
      5    0.0%    0.0%  v8::V8::DisposeGlobal(v8::internal::Object**)
      4    0.0%    0.0%  write
      4    0.0%    0.0%  v8::internal::IncrementalMarking::WhiteToGreyAndPush(v8::internal::HeapObject*)
      3    0.0%    0.0%  v8::internal::compiler::GraphReducer::Reduce(v8::internal::compiler::Node*)
      3    0.0%    0.0%  v8::internal::compiler::BytecodeGraphBuilder::MakeNode(v8::internal::compiler::Operator const*, int, v8::internal::compiler::Node* const*, bool)
      3    0.0%    0.0%  v8::internal::Heap::ProcessPretenuringFeedback() [clone .part.783]
      3    0.0%    0.0%  v8::internal::CancelableTaskManager::Register(v8::internal::Cancelable*)
      3    0.0%    0.0%  v8::ArrayBufferView::ByteOffset()
      3    0.0%    0.0%  std::__detail::_Prime_rehash_policy::_M_next_bkt(unsigned long) const
      3    0.0%    0.0%  node::Buffer::Length(v8::Local<v8::Object>)
      2    0.0%    0.0%  void v8::internal::Code::BodyDescriptor::IterateBody<v8::internal::MarkingVisitor<(v8::internal::FixedArrayVisitationMode)1, (v8::internal::TraceRetainingPathMode)1, v8::internal::IncrementalMarkingState> >(v8::internal::HeapObject*, v8::internal::MarkingVisitor<(v8::internal::FixedArrayVisitationMode)1, (v8::internal::TraceRetainingPathMode)1, v8::internal::IncrementalMarkingState>*) [clone .constprop.256]
      2    0.0%    0.0%  v8::internal::compiler::Typer::Visitor::Reduce(v8::internal::compiler::Node*)
      2    0.0%    0.0%  v8::internal::compiler::SourcePositionTable::GetSourcePosition(v8::internal::compiler::Node*) const
      2    0.0%    0.0%  v8::internal::compiler::Node::New(v8::internal::Zone*, unsigned int, v8::internal::compiler::Operator const*, int, v8::internal::compiler::Node* const*, bool)
      2    0.0%    0.0%  v8::internal::Zone::New(unsigned long)
      2    0.0%    0.0%  v8::internal::StoreBuffer::MoveAllEntriesToRememberedSet()
      2    0.0%    0.0%  v8::internal::Scavenger::Process(v8::internal::OneshotBarrier*)
      2    0.0%    0.0%  v8::internal::RelocIterator::next()
      2    0.0%    0.0%  v8::internal::PerIsolateAssertScope<(v8::internal::PerIsolateAssertType)1, false>::IsAllowed(v8::internal::Isolate*)
      2    0.0%    0.0%  v8::internal::PagedSpace::SizeOfObjects()
      2    0.0%    0.0%  v8::internal::MemoryReducer::TimerTask::RunInternal()
      2    0.0%    0.0%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<false>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
      2    0.0%    0.0%  v8::internal::MarkCompactCollector::RootMarkingVisitor::VisitRootPointer(v8::internal::Root, v8::internal::Object**)
      2    0.0%    0.0%  v8::internal::Isolate::wasm_code_manager()
      2    0.0%    0.0%  v8::internal::Heap::GarbageCollectionEpilogue()
      2    0.0%    0.0%  v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags)
      2    0.0%    0.0%  v8::internal::GCTracer::Start(v8::internal::GarbageCollector, v8::internal::GarbageCollectionReason, char const*)
      2    0.0%    0.0%  v8::internal::CanonicalHandleScope::Lookup(v8::internal::Object*)
      2    0.0%    0.0%  v8::internal::AccountingAllocator::ReturnSegment(v8::internal::Segment*)
      2    0.0%    0.0%  v8::base::Mutex::Unlock()
      2    0.0%    0.0%  v8::Object::CreationContext()
      2    0.0%    0.0%  uv_mutex_lock
      2    0.0%    0.0%  uv_hrtime
      2    0.0%    0.0%  std::vector<v8::internal::SourcePosition, v8::internal::ZoneAllocator<v8::internal::SourcePosition> >::_M_fill_insert(__gnu_cxx::__normal_iterator<v8::internal::SourcePosition*, std::vector<v8::internal::SourcePosition, v8::internal::ZoneAllocator<v8::internal::SourcePosition> > >, unsigned long, v8::internal::SourcePosition const&)
      2    0.0%    0.0%  operator new(unsigned long)
      2    0.0%    0.0%  node::NodePlatform::MonotonicallyIncreasingTime()
      2    0.0%    0.0%  node::NodePlatform::CallOnBackgroundThread(v8::Task*, v8::Platform::ExpectedRuntime)
      2    0.0%    0.0%  node::Binding(v8::FunctionCallbackInfo<v8::Value> const&)
      2    0.0%    0.0%  _IO_vfprintf
      1    0.0%    0.0%  v8::internal::parsing::ParseFunction(v8::internal::ParseInfo*, v8::internal::Handle<v8::internal::SharedFunctionInfo>, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::interpreter::InterpreterCompilationJob::FinalizeJobImpl(v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::interpreter::Interpreter::IterateDispatchTable(v8::internal::RootVisitor*)
      1    0.0%    0.0%  v8::internal::interpreter::ConstantArrayBuilder::Insert(v8::internal::AstRawString const*)
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeLabels::Bind(v8::internal::interpreter::BytecodeArrayBuilder*)
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeArrayWriter::BytecodeArrayWriter(v8::internal::Zone*, v8::internal::interpreter::ConstantArrayBuilder*, v8::internal::SourcePositionTableBuilder::RecordingMode)
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeArrayRandomIterator::UpdateOffsetFromIndex()
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeArrayRandomIterator::IsValid() const
      1    0.0%    0.0%  v8::internal::interpreter::BytecodeArrayBuilder::StoreAccumulatorInRegister(v8::internal::interpreter::Register)
      1    0.0%    0.0%  v8::internal::compiler::Typer::Visitor::TypeInductionVariablePhi(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::SimplifiedOperatorBuilder::CheckIf(v8::internal::DeoptimizeReason)
      1    0.0%    0.0%  v8::internal::compiler::OperatorProperties::HasContextInput(v8::internal::compiler::Operator const*)
      1    0.0%    0.0%  v8::internal::compiler::Operator::Operator(unsigned short, v8::base::Flags<v8::internal::compiler::Operator::Property, unsigned char>, char const*, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long)
      1    0.0%    0.0%  v8::internal::compiler::NodeProperties::GetFrameStateInput(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::NodeProperties::GetEffectInput(v8::internal::compiler::Node*, int)
      1    0.0%    0.0%  v8::internal::compiler::Node::TrimInputCount(int)
      1    0.0%    0.0%  v8::internal::compiler::LoopVariableOptimizer::Run()
      1    0.0%    0.0%  v8::internal::compiler::JSIntrinsicLowering::Reduce(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::GraphReducer::Replace(v8::internal::compiler::Node*, v8::internal::compiler::Node*, unsigned int)
      1    0.0%    0.0%  v8::internal::compiler::FeedbackParameterOf(v8::internal::compiler::Operator const*)
      1    0.0%    0.0%  v8::internal::compiler::DeadCodeElimination::ReduceNode(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::DeadCodeElimination::ReduceEffectNode(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::CommonOperatorReducer::ReduceBranch(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::CommonOperatorBuilder::Call(v8::internal::compiler::CallDescriptor const*)
      1    0.0%    0.0%  v8::internal::compiler::BytecodeLiveness::BytecodeLiveness(int, v8::internal::Zone*)
      1    0.0%    0.0%  v8::internal::compiler::BytecodeGraphBuilder::VisitSingleBytecode(v8::internal::SourcePositionTableIterator*)
      1    0.0%    0.0%  v8::internal::compiler::BitsetType::Lub(v8::internal::compiler::Type*)
      1    0.0%    0.0%  v8::internal::compiler::AccessInfoFactory::ComputePropertyAccessInfo(v8::internal::Handle<v8::internal::Map>, v8::internal::Handle<v8::internal::Name>, v8::internal::compiler::AccessMode, v8::internal::compiler::PropertyAccessInfo*)
      1    0.0%    0.0%  v8::internal::compiler::(anonymous namespace)::UpdateInLiveness(v8::internal::interpreter::Bytecode, v8::internal::compiler::BytecodeLivenessState&, v8::internal::interpreter::BytecodeArrayAccessor const&) [clone .constprop.75]
      1    0.0%    0.0%  v8::internal::compiler::(anonymous namespace)::SourcePositionWrapper::Reduce(v8::internal::compiler::Node*)
      1    0.0%    0.0%  v8::internal::compiler::(anonymous namespace)::AddReducer(v8::internal::compiler::PipelineData*, v8::internal::compiler::GraphReducer*, v8::internal::compiler::Reducer*) [clone .constprop.532]
      1    0.0%    0.0%  v8::internal::Zone::~Zone()
      1    0.0%    0.0%  v8::internal::Worklist<v8::internal::HeapObject*, 64>::Pop(int, v8::internal::HeapObject**)
      1    0.0%    0.0%  v8::internal::VariableProxy::BindTo(v8::internal::Variable*)
      1    0.0%    0.0%  v8::internal::VSNPrintF(v8::internal::Vector<char>, char const*, __va_list_tag*)
      1    0.0%    0.0%  v8::internal::V8::GetCurrentPlatform()
      1    0.0%    0.0%  v8::internal::Sweeper::RawSweep(v8::internal::Page*, v8::internal::Sweeper::FreeListRebuildingMode, v8::internal::FreeSpaceTreatmentMode)
      1    0.0%    0.0%  v8::internal::String::SlowEquals(v8::internal::String*)
      1    0.0%    0.0%  v8::internal::StoreBuffer::StoreBufferOverflow(v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::StoreBuffer::InsertDuringRuntime(v8::internal::StoreBuffer*, unsigned char*)
      1    0.0%    0.0%  v8::internal::StandardFrame::IterateCompiledFrame(v8::internal::RootVisitor*) const
      1    0.0%    0.0%  v8::internal::StackFrame::GetCallerState(v8::internal::StackFrame::State*) const
      1    0.0%    0.0%  v8::internal::SourcePositionTableIterator::Advance()
      1    0.0%    0.0%  v8::internal::SharedFunctionInfo::PassesFilter(char const*)
      1    0.0%    0.0%  v8::internal::Scope::LookupInScopeInfo(v8::internal::AstRawString const*)
      1    0.0%    0.0%  v8::internal::Scanner::ScanIdentifierOrKeyword()
      1    0.0%    0.0%  v8::internal::Runtime_InterpreterNewClosure(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::RootScavengeVisitor::VisitRootPointers(v8::internal::Root, v8::internal::Object**, v8::internal::Object**)
      1    0.0%    0.0%  v8::internal::RelocIterator::RelocIterator(v8::internal::Code*, int)
      1    0.0%    0.0%  v8::internal::Parser::SetFunctionNameFromIdentifierRef(v8::internal::Expression*, v8::internal::Expression*)
      1    0.0%    0.0%  v8::internal::PagedSpace::MergeCompactionSpace(v8::internal::CompactionSpace*)
      1    0.0%    0.0%  v8::internal::NewSpace::UpdateInlineAllocationLimit(int)
      1    0.0%    0.0%  v8::internal::NewSpace::SizeOfObjects()
      1    0.0%    0.0%  v8::internal::NewSpace::Shrink()
      1    0.0%    0.0%  v8::internal::NewSpace::InlineAllocationStep(unsigned char*, unsigned char*, unsigned char*, unsigned long)
      1    0.0%    0.0%  v8::internal::MarkCompactCollector::RecordRelocSlot(v8::internal::Code*, v8::internal::RelocInfo*, v8::internal::Object*)
      1    0.0%    0.0%  v8::internal::Map::CopyWithField(v8::internal::Handle<v8::internal::Map>, v8::internal::Handle<v8::internal::Name>, v8::internal::Handle<v8::internal::FieldType>, v8::internal::PropertyAttributes, v8::internal::PropertyConstness, v8::internal::Representation, v8::internal::TransitionFlag)
      1    0.0%    0.0%  v8::internal::Log::MessageBuilder::WriteToLogFile()
      1    0.0%    0.0%  v8::internal::LoadICNexus::StateFromFeedback() const
      1    0.0%    0.0%  v8::internal::IdentityMapBase::GetEntry(v8::internal::Object*)
      1    0.0%    0.0%  v8::internal::HeapObject::SizeFromMap(v8::internal::Map*) const
      1    0.0%    0.0%  v8::internal::HeapObject::Size() const
      1    0.0%    0.0%  v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags)
      1    0.0%    0.0%  v8::internal::Heap::OldGenerationCapacity()
      1    0.0%    0.0%  v8::internal::Heap::GetFillToAlign(unsigned char*, v8::internal::AllocationAlignment)
      1    0.0%    0.0%  v8::internal::Heap::CreateFillerObjectAt(unsigned char*, int, v8::internal::ClearRecordedSlots) [clone .constprop.818]
      1    0.0%    0.0%  v8::internal::Heap::AllocateWeakCell(v8::internal::HeapObject*)
      1    0.0%    0.0%  v8::internal::Heap::AllocateMap(v8::internal::InstanceType, int, v8::internal::ElementsKind, int)
      1    0.0%    0.0%  v8::internal::Heap::AllocateFillerObject(int, bool, v8::internal::AllocationSpace)
      1    0.0%    0.0%  v8::internal::GlobalHandles::MarkNewSpaceWeakUnmodifiedObjectsPending(bool (*)(v8::internal::Heap*, v8::internal::Object**))
      1    0.0%    0.0%  v8::internal::GCTracer::Stop(v8::internal::GarbageCollector)
      1    0.0%    0.0%  v8::internal::GCTracer::Output(char const*, ...) const
      1    0.0%    0.0%  v8::internal::FixStaleLeftTrimmedHandlesVisitor::VisitRootPointers(v8::internal::Root, v8::internal::Object**, v8::internal::Object**)
      1    0.0%    0.0%  v8::internal::ExitFrame::Iterate(v8::internal::RootVisitor*) const
      1    0.0%    0.0%  v8::internal::EternalHandles::IterateNewSpaceRoots(v8::internal::RootVisitor*)
      1    0.0%    0.0%  v8::internal::EntryFrame::Iterate(v8::internal::RootVisitor*) const
      1    0.0%    0.0%  v8::internal::DependentCode::Insert(v8::internal::Handle<v8::internal::DependentCode>, v8::internal::DependentCode::DependencyGroup, v8::internal::Handle<v8::internal::Object>)
      1    0.0%    0.0%  v8::internal::CompilationCache::Iterate(v8::internal::RootVisitor*)
      1    0.0%    0.0%  v8::internal::Assembler::jmp(v8::internal::Label*, v8::internal::Label::Distance)
      1    0.0%    0.0%  v8::internal::ArrayBufferCollector::FreeAllocationsOnBackgroundThread()
      1    0.0%    0.0%  v8::internal::AggregatedMemoryHistogram<v8::internal::Histogram>::AddSample(double, double)
      1    0.0%    0.0%  v8::base::hash_value(unsigned long)
      1    0.0%    0.0%  v8::base::TemplateHashMapImpl<int, v8::internal::compiler::BytecodeLiveness, v8::base::KeyEqualityMatcher<int>, v8::internal::ZoneAllocationPolicy>::FillEmptyEntry(v8::base::TemplateHashMapEntry<int, v8::internal::compiler::BytecodeLiveness>*, int const&, v8::internal::compiler::BytecodeLiveness const&, unsigned int, v8::internal::ZoneAllocationPolicy)
      1    0.0%    0.0%  v8::Value::IsInt32() const
      1    0.0%    0.0%  uv_timer_stop
      1    0.0%    0.0%  uv_mutex_unlock
      1    0.0%    0.0%  uv_cond_signal
      1    0.0%    0.0%  std::vector<v8::internal::compiler::Node*, v8::internal::ZoneAllocator<v8::internal::compiler::Node*> >::_M_fill_insert(__gnu_cxx::__normal_iterator<v8::internal::compiler::Node**, std::vector<v8::internal::compiler::Node*, v8::internal::ZoneAllocator<v8::internal::compiler::Node*> > >, unsigned long, v8::internal::compiler::Node* const&)
      1    0.0%    0.0%  std::pair<std::_Rb_tree_iterator<v8::internal::compiler::JSInliningHeuristic::Candidate>, bool> std::_Rb_tree<v8::internal::compiler::JSInliningHeuristic::Candidate, v8::internal::compiler::JSInliningHeuristic::Candidate, std::_Identity<v8::internal::compiler::JSInliningHeuristic::Candidate>, v8::internal::compiler::JSInliningHeuristic::CandidateCompare, v8::internal::ZoneAllocator<v8::internal::compiler::JSInliningHeuristic::Candidate> >::_M_insert_unique<v8::internal::compiler::JSInliningHeuristic::Candidate const&>(v8::internal::compiler::JSInliningHeuristic::Candidate const&)
      1    0.0%    0.0%  std::_Deque_base<v8::internal::compiler::BytecodeAnalysis::LoopStackEntry, v8::internal::RecyclingZoneAllocator<v8::internal::compiler::BytecodeAnalysis::LoopStackEntry> >::_M_initialize_map(unsigned long)
      1    0.0%    0.0%  node::PerIsolatePlatformData::PostDelayedTask(std::unique_ptr<v8::Task, std::default_delete<v8::Task> >, double)
      1    0.0%    0.0%  node::PerIsolatePlatformData::FlushForegroundTasksInternal()::{lambda(node::DelayedTask*)#1}::operator()(node::DelayedTask*) const::{lambda(uv_handle_s*)#1}::_FUN(uv_handle_s)
      1    0.0%    0.0%  node::Buffer::HasInstance(v8::Local<v8::Value>)
      1    0.0%    0.0%  int v8::internal::BinarySearch<(v8::internal::SearchMode)1, v8::internal::DescriptorArray>(v8::internal::DescriptorArray*, v8::internal::Name*, int, int*)
      1    0.0%    0.0%  fwrite
      1    0.0%    0.0%  do_futex_wait.constprop.3
      1    0.0%    0.0%  brk
      1    0.0%    0.0%  __GI___libc_write
      1    0.0%    0.0%  _IO_default_xsputn

 [Summary]:
   ticks  total  nonlib   name
   5664    2.8%    2.8%  JavaScript
  193831   95.2%   96.4%  C++
    329    0.2%    0.2%  GC
   2503    1.2%          Shared libraries
   1590    0.8%          Unaccounted

 [C++ entry points]:
   ticks    cpp   total   name
   3284   42.3%    1.6%  __pthread_cond_signal
   1505   19.4%    0.7%  v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*)
   1179   15.2%    0.6%  v8::internal::Builtin_ArrayBufferConstructor_ConstructStub(int, v8::internal::Object**, v8::internal::Isolate*)
    546    7.0%    0.3%  v8::internal::Runtime_StringParseInt(int, v8::internal::Object**, v8::internal::Isolate*)
    111    1.4%    0.1%  __lll_unlock_wake
    108    1.4%    0.1%  v8::internal::Builtin_ObjectGetPrototypeOf(int, v8::internal::Object**, v8::internal::Isolate*)
     89    1.1%    0.0%  __GI___pthread_mutex_lock
     74    1.0%    0.0%  v8::internal::Map::FindRootMap() const
     72    0.9%    0.0%  v8::internal::Runtime_CompileOptimized_Concurrent(int, v8::internal::Object**, v8::internal::Isolate*)
     72    0.9%    0.0%  __GI___pthread_once
     60    0.8%    0.0%  v8::internal::Builtin_TypedArrayPrototypeBuffer(int, v8::internal::Object**, v8::internal::Isolate*)
     58    0.7%    0.0%  node::fs::WriteBuffer(v8::FunctionCallbackInfo<v8::Value> const&)
     56    0.7%    0.0%  node::fs::Read(v8::FunctionCallbackInfo<v8::Value> const&)
     49    0.6%    0.0%  v8::Value::IsExternal() const
     42    0.5%    0.0%  v8::ArrayBuffer::GetContents()
     37    0.5%    0.0%  v8::External::Value() const
     31    0.4%    0.0%  node::(anonymous namespace)::RunMicrotasks(v8::FunctionCallbackInfo<v8::Value> const&)
     29    0.4%    0.0%  v8::Value::Int32Value() const
     25    0.3%    0.0%  v8::internal::JSTypedArray::GetBuffer()
     23    0.3%    0.0%  v8::Value::IsObject() const
     22    0.3%    0.0%  v8::Value::IsArrayBufferView() const
     19    0.2%    0.0%  uv_buf_init
     18    0.2%    0.0%  v8::Object::InternalFieldCount()
     17    0.2%    0.0%  uv__work_submit
     16    0.2%    0.0%  v8::Value::IsNumber() const
     15    0.2%    0.0%  v8::internal::Isolate::RunMicrotasks()
     15    0.2%    0.0%  v8::Value::Uint32Value() const
     15    0.2%    0.0%  v8::ArrayBufferView::ByteLength()
     15    0.2%    0.0%  v8::ArrayBufferView::Buffer()
     15    0.2%    0.0%  uv_fs_read
     14    0.2%    0.0%  v8::internal::Runtime_CompileLazy(int, v8::internal::Object**, v8::internal::Isolate*)
     13    0.2%    0.0%  v8::internal::JSObject::GetHeaderSize(v8::internal::InstanceType, bool)
     12    0.2%    0.0%  v8::internal::Isolate::RunMicrotasksInternal()
     12    0.2%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::SuppressMicrotaskExecutionScope(v8::Isolate*)
     12    0.2%    0.0%  node::fs::GetReqWrap(node::Environment*, v8::Local<v8::Value>)
     12    0.2%    0.0%  node::Buffer::Data(v8::Local<v8::Object>)
     11    0.1%    0.0%  uv_fs_write
     10    0.1%    0.0%  __lll_lock_wait
      8    0.1%    0.0%  _init
      7    0.1%    0.0%  node::fs::FSReqWrap::SetReturnValue(v8::FunctionCallbackInfo<v8::Value> const&)
      6    0.1%    0.0%  v8::internal::Runtime_StackGuard(int, v8::internal::Object**, v8::internal::Isolate*)
      5    0.1%    0.0%  v8::Value::IntegerValue() const
      3    0.0%    0.0%  v8::internal::Runtime_AllocateInNewSpace(int, v8::internal::Object**, v8::internal::Isolate*)
      3    0.0%    0.0%  v8::ArrayBufferView::ByteOffset()
      3    0.0%    0.0%  node::Buffer::Length(v8::Local<v8::Object>)
      2    0.0%    0.0%  v8::internal::Heap::AllocateRaw(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment)
      2    0.0%    0.0%  v8::Isolate::SuppressMicrotaskExecutionScope::~SuppressMicrotaskExecutionScope()
      1    0.0%    0.0%  v8::internal::Runtime_LoadIC_Miss(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::Runtime_InterpreterNewClosure(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::Runtime_CreateObjectLiteral(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::internal::MaybeHandle<v8::internal::Object> v8::internal::(anonymous namespace)::HandleApiCallHelper<true>(v8::internal::Isolate*, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::HeapObject>, v8::internal::Handle<v8::internal::FunctionTemplateInfo>, v8::internal::Handle<v8::internal::Object>, v8::internal::BuiltinArguments)
      1    0.0%    0.0%  v8::internal::Builtin_ObjectDefineProperty(int, v8::internal::Object**, v8::internal::Isolate*)
      1    0.0%    0.0%  v8::Value::IsInt32() const
      1    0.0%    0.0%  uv_cond_signal
      1    0.0%    0.0%  node::Buffer::HasInstance(v8::Local<v8::Value>)
      1    0.0%    0.0%  __GI___pthread_mutex_unlock

 [Bottom up (heavy) profile]:
  Note: percentage shows a share of a particular caller in the total
  amount of its parent calls.
  Callers occupying less than 1.0% are not shown.

   ticks parent  name
  179603   88.2%  syscall

   3298    1.6%  __pthread_cond_signal
   1662   50.4%    LazyCompile: *WriteStream._write fs.js:2443:40
   1662  100.0%      LazyCompile: *ondata _stream_readable.js:644:18
    789   47.5%        LazyCompile: *readableAddChunk _stream_readable.js:213:26
    789  100.0%          LazyCompile: *ondata _stream_readable.js:644:18
    770   97.6%            LazyCompile: *fs.read fs.js:2318:55
     14    1.8%            LazyCompile: *Readable.push _stream_readable.js:188:35
    518   31.2%        LazyCompile: *Readable.read _stream_readable.js:365:35
    518  100.0%          LazyCompile: *<anonymous> _stream_readable.js:707:18
    506   97.7%            LazyCompile: *fs.write fs.js:2458:53
     12    2.3%            LazyCompile: *onwrite _stream_writable.js:431:17
    340   20.5%        LazyCompile: *emit events.js:101:44
    175   51.5%          LazyCompile: *readableAddChunk _stream_readable.js:213:26
    175  100.0%            LazyCompile: *Transform._write _stream_transform.js:163:38
    165   48.5%          LazyCompile: *Readable.read _stream_readable.js:365:35
    165  100.0%            LazyCompile: *<anonymous> _stream_readable.js:707:18
   1606   48.7%    LazyCompile: *Readable.read _stream_readable.js:365:35
   1587   98.8%      LazyCompile: *<anonymous> _stream_readable.js:707:18
   1488   93.8%        LazyCompile: *afterWrite _stream_writable.js:459:20
   1437   96.6%          LazyCompile: *_tickCallback internal/process/next_tick.js:92:25
     38    2.6%          LazyCompile: *afterTransform _stream_transform.js:73:24
     29   76.3%            LazyCompile: *Readable.read _stream_readable.js:365:35
      9   23.7%            LazyCompile: ~PassThrough._transform _stream_passthrough.js:41:44
     94    5.9%        LazyCompile: *PassThrough._transform _stream_passthrough.js:41:44
     94  100.0%          LazyCompile: *Readable.read _stream_readable.js:365:35
     94  100.0%            LazyCompile: *<anonymous> _stream_readable.js:707:18