nodejs分析未知和未计入的结果

我正在运行nodejs 4.4.7 LTS

我运行这里描述的探查器https://nodejs.org/en/docs/guides/simple-profiling/ ：

node --prof app.js 

接着：

 node --prof-process isolate-something-v8.log > processed.txt 

我是否缺less分析器或其他东西？

代码是关于什么的：

NodeJS应用程序是socket.io服务器发送数据从WEB到C + +应用程序和反对。

从下面的结果可以看出，这里有大量的未logging的抽搐。 什么可能导致这种情况，以及如何知道在这种情况下我的应用程序的瓶颈？ 有什么可以解决的？

 Code move event for unknown code: 0x61047523c0 Code move event for unknown code: 0x6104bf74a0 Statistical profiling result from isolate-000001E1507CF2D0-v8.log, (211705 ticks, 210634 unaccounted, 0 excluded). [Shared libraries]: ticks total nonlib name [JavaScript]: ticks total nonlib name 71 0.0% 0.0% LazyCompile: *stringToBuffer *SOMETHING*\socket.io\node_modules\engine.io\node_modules\engine.io-parser\lib\index.js:359:24 59 0.0% 0.0% LazyCompile: listOnTimeout timers.js:56:23 50 0.0% 0.0% LazyCompile: *wrapper timers.js:274:19 43 0.0% 0.0% Stub: StringAddStub_CheckNone_NotTenured . . . [C++]: ticks total nonlib name [Summary]: ticks total nonlib name 1071 0.5% 0.5% JavaScript 0 0.0% 0.0% C++ 202 0.1% 0.1% GC 0 0.0% Shared libraries 210634 99.5% Unaccounted [C++ entry points]: ticks cpp total name [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 210634 99.5% UNKNOWN