Search Hashnode

Search posts, tags, users, and pages

Comment by Jonathan Apodaca on "Can Node.js be considered multi threaded?" | Hashnode

Thread

Jonathan Apodaca

/* no comment */

Mar 7, 2017

Short answer: the core of Node.JS is multithreaded, but all user-code (i.e., JavaScript that you write) is single-threaded. Node.JS spawns multiple threads (allocated strictly for I/O operations), gathers their results and then posts each result back to the one/main/single thread.

So it depends on your perspective, if you will: From the point of the JavaScript developer, Node.JS is single threaded. From the perspective of Node.JS core (libuv), it is multi-threaded.

Multithreaded, but...

Cliff Rowley

Thinker, Tinkererer, Dork.

Mar 7, 2017

This is the correct answer in my opinion. If you ask whether the Node platform itself is single or multi threaded, the answer is clearly multi. However if you ask whether the Node environment is single or multi threaded, the answer is single.

Sai Kishore Komanduri

Engineering an eGovernance Product | Hashnode Alumnus | I love pixel art

Mar 7, 2017

Yep, NodeJS environment runs on a single threaded event loop model; one has to note that new threads are not spawned for all I/O operations; they're usually only spawned for blocking I/O operations.

Nikhil Sharad

Jun 16, 2017

any idea what the limit on the number of worker threads is? Also, is the limit configurable?