Tag: omn​​ios

在Node.js程序上使用DTrace时没有函数名称

我试图根据本指南在VirtualBox中的OmniOS虚拟机上使用DTrace进行Node.js程序的CPU分析，我完全按照以下步骤设置（除了使用节点0.10.26）。 不幸的是，DTrace不给我人类可读的JS函数名称，但只是原始函数地址（据我所知），看起来像这样，并不是很有帮助： CPU ID FUNCTION:NAME 0 66407 :tick-30s node`v8::internal::String::ComputeHashField(unibrow::CharacterStream*, int, unsigned int)+0x162 node`v8::internal::Utf8SymbolKey::Hash() [clone .part.342]+0xb9 node`v8::internal::HashTable<v8::internal::SymbolTableShape, v8::internal::HashTableKey*>::FindEntry(v8::internal::Isolate*, v8::internal::HashTableKey*)+0x20 node`v8::internal::SymbolTable::LookupKey(v8::internal::HashTableKey*, v8::internal::Object**)+0x38 node`v8::internal::SymbolTable::LookupSymbol(v8::internal::Vector<char const>, v8::internal::Object**)+0x4e node`v8::internal::Heap::LookupSymbol(v8::internal::Vector<char const>)+0x34 node`v8::internal::Factory::LookupSymbol(v8::internal::Vector<char const>)+0x34 node`v8::internal::JSProxy::CallTrap(char const*, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*)+0x76 node`v8::internal::JSProxy::GetPropertyWithHandler(v8::internal::Object*, v8::internal::String*)+0x108 node`v8::internal::Object::GetProperty(v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, v8::internal::LookupResult*, v8::internal::Handle<v8::internal::String>, PropertyAttributes*)+0x57 node`v8::internal::LoadIC::Load(v8::internal::InlineCacheState, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::String>)+0x49d node`v8::internal::LoadIC_Miss(v8::internal::Arguments, v8::internal::Isolate*)+0xbd 0xa730a376 0x8966eee0 0x8968bb7c 0xa7321899 0xa731308a 以上是运行这些命令的结果： dtrace -n 'profile-97/pid == 12345 […]