The number of threads in the Node process of the Express framework?

Linux environment, write an application using Express framework, launched using pm2 , Node version is V8.11.1 . I check that the value of Threads in the process file / proc/PID/status is 10. Why is this value 10? what does it have to do with? I looked at other processes of the same version of my server, and the value of Threads is also 10? Does it have anything to do with the version of Node ? liunx version is CentOS 7.4

in another linux , there is the same application whose version of Node is V10.14.0 . But if you look at / proc/PID/status , the value of Threads is 11. Please answer this question. liunx version is CentOS 7.0

Javascript node.js linux unix centos

Jul.18,2022

the underlying layer of nodejs is libuv, so the size of threads is UV_THREADPOOL_SIZE + v8_thread_pool_size + 1

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