未知和___channel_get_opt占用node.js分析器结果中的大部分ticks

我只是按照这里的指导对我的node.js应用程序进行了分析： https ： //nodejs.org/en/docs/guides/simple-profiling/ 。 我的node.js应用程序正在提供一个API，其中有一些调用cloudant。 分析结果显示___channel_get_opt，未知似乎占据了大部分的滴答如下。

潜在的瓶颈是什么？

谢谢。

[C++]: ticks total nonlib name 15622 15.9% 16.0% ___channel_get_opt 1968 2.0% 2.0% v8::internal::IncrementalMarking::Step(long, v8::internal::IncrementalMarking::CompletionAction, v8::internal::IncrementalMarking::ForceMarkingAction, v8::internal::IncrementalMarking::ForceCompletionAction) 1500 1.5% 1.5% void node::StreamBase::JSMethod<node::StreamWrap, &(int node::StreamBase::WriteString<(node::encoding)1>(v8::FunctionCallbackInfo<v8::Value> const&))>(v8::FunctionCallbackInfo<v8::Value> const&) 1278 1.3% 1.3% v8::internal::Context::RemoveOptimizedFunction(v8::internal::JSFunction*) 1240 1.3% 1.3% node::TCPWrap::Connect(v8::FunctionCallbackInfo<v8::Value> const&) 1171 1.2% 1.2% _szone_malloc_should_clear [Summary]: ticks total nonlib name 18462 18.8% 19.0% JavaScript 67692 68.8% 69.5% C++ 6486 6.6% 6.7% GC 1021 1.0% Shared libraries 11182 11.4% Unaccounted [C++ entry points]: ticks cpp total name 7122 19.9% 7.2% v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*) 3957 11.1% 4.0% v8::internal::Runtime_KeyedStoreIC_Miss(int, v8::internal::Object**, v8::internal::Isolate*) 1480 4.1% 1.5% v8::internal::Builtin_ObjectKeys(int, v8::internal::Object**, v8::internal::Isolate*) 1289 3.6% 1.3% v8::internal::Runtime_KeyedLoadIC_Miss(int, v8::internal::Object**, v8::internal::Isolate*) 1285 3.6% 1.3% v8::internal::Runtime_NotifyDeoptimized(int, v8::internal::Object**, v8::internal::Isolate*) 1139 3.2% 1.2% v8::internal::Runtime_KeyedGetProperty(int, v8::internal::Object**, v8::internal::Isolate*) 998 2.8% 1.0% v8::internal::Runtime_DebugPromiseEvent(int, v8::internal::Object**, v8::internal::Isolate*) 961 2.7% 1.0% v8::internal::Runtime_AllocateInTargetSpace(int, v8::internal::Object**, v8::internal::Isolate*) 928 2.6% 0.9% v8::internal::Runtime_DebugAsyncTaskEvent(int, v8::internal::Object**, v8::internal::Isolate*) 895 2.5% 0.9% v8::internal::Runtime_CompileOptimized_Concurrent(int, v8::internal::Object**, v8::internal::Isolate*) 862 2.4% 0.9% v8::internal::Runtime_ParseJson(int, v8::internal::Object**, v8::internal::Isolate*) 721 2.0% 0.7% v8::internal::Runtime_StoreIC_Miss(int, v8::internal::Object**, v8::internal::Isolate*) 699 2.0% 0.7% v8::internal::Runtime_SetProperty(int, v8::internal::Object**, v8::internal::Isolate*) [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 2.0% are not shown. ticks parent name 15622 15.9% ___channel_get_opt 11182 11.4% UNKNOWN 1675 15.0% v8::internal::Builtin_HandleApiCall(int, v8::internal::Object**, v8::internal::Isolate*) 1337 79.8% LazyCompile: *Socket._writeGeneric net.js:665:42 1077 80.6% LazyCompile: *Socket._writev net.js:728:36 874 81.2% LazyCompile: *clearBuffer _stream_writable.js:403:21 791 90.5% LazyCompile: *Writable.uncork _stream_writable.js:259:37 52 5.9% LazyCompile: ~end /Users/winattack/Documents/work/engage-service/node_modules/compression/index.js:91:28 24 2.7% Handler: uri {22} 203 18.8% LazyCompile: ~doWrite _stream_writable.js:326:17 203 100.0% LazyCompile: ~clearBuffer _stream_writable.js:403:21 198 14.8% LazyCompile: *clearBuffer _stream_writable.js:403:21 160 80.8% LazyCompile: *_flushOutput _http_outgoing.js:667:63 160 100.0% LazyCompile: *OutgoingMessage._flush _http_outgoing.js:649:44 38 19.2% LazyCompile: *OutgoingMessage.end _http_outgoing.js:548:41 38 100.0% LazyCompile: ~end /Users/winattack/Documents/work/engage-service/node_modules/compression/index.js:91:28 52 3.9% Handler: body {10} 52 100.0% LazyCompile: ~clearBuffer _stream_writable.js:403:21 52 100.0% LazyCompile: *_flushOutput _http_outgoing.js:667:63 181 10.8% LazyCompile: *TLSSocket._start _tls_wrap.js:613:38 181 100.0% LazyCompile: ~<anonymous> _tls_wrap.js:1064:41 181 100.0% LazyCompile: ~g events.js:287:13 173 95.6% LazyCompile: *emit events.js:136:44 8 4.4% LazyCompile: ~emitNone events.js:84:18 157 9.4% LazyCompile: *createWriteReq net.js:737:24 121 77.1% LazyCompile: *Socket._writeGeneric net.js:665:42 121 100.0% LazyCompile: ~Socket._write net.js:733:35 100 82.6% LazyCompile: *clearBuffer _stream_writable.js:403:21 12 9.9% LazyCompile: ~doWrite _stream_writable.js:326:17 9 7.4% LazyCompile: ~controller /Users/winattack/Documents/work/engage-service/server_build/idea_garage_server.js:3637:29 36 22.9% LazyCompile: ~Socket._writeGeneric net.js:665:42 36 100.0% LazyCompile: ~Socket._write net.js:733:35 18 50.0% LazyCompile: ~doWrite _stream_writable.js:326:17 10 27.8% LazyCompile: *clearBuffer _stream_writable.js:403:21 8 22.2% Handler: getFieldInfo