node js cpu 100%

Question

We\'re having a problem where every once in a while one of our environments our node app runs on 100% CPU. The server isn\'t very active and usually runs on 0%-2% CPU. I was

Answer 1

UPDATE 2019 !!

You better use the built in --prof-process to process v8 profiling data, the generated file is no longer v8.log and node-tick-processor won't help you much, so to profile your app and read the v8 profiling data you can proceed as follows:

node --prof your_script.js

Node will generate a file with a name like this isolate-0x103800000-v8.log in your current directory, now you use this file to generate a profiling report

node --prof-process isolate-0x103800000-v8.log > processed.txt

Simple profiling