node-webworker-threads | Lightweight Web Worker API implementation | Architecture library
kandi X-RAY | node-webworker-threads Summary
kandi X-RAY | node-webworker-threads Summary
After the initialization phase of a Node program, whose purpose is to setup listeners and callbacks to be executed in response to events, the next phase, the proper execution of the program, is orchestrated by the event loop whose duty is to juggle events, listeners and callbacks quickly and without any hiccups nor interruptions that would ruin its performance. Both the event loop and said listeners and callbacks run sequentially in a single thread of execution, Node's main thread. If any of them ever blocks, nothing else will happen for the duration of the block: no more events will be handled, no more callbacks nor listeners nor timeouts nor setImmediate()ed functions will have the chance to run and do their job, because they won't be called by the blocked event loop, and the program will turn sluggish at best, or appear to be frozen and dead at worst.
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QUESTION
I think the question is pretty explicit. JavaScript is single threaded and NodeJS still achieves incredible performances. We could think obvious that multi-threading would take NodeJS performances further, but it might be wrong in some cases.
For example, I'm currently building a starter project using NextJS. I wonder if handling each request in a separate thread would be worth it.
Thank you!
...ANSWER
Answered 2018-Mar-12 at 11:39As far as I know in production mode nodeJs "usually" used as:
- nginx server (used as security layer and as HTTPS proxy)
- number of child NodeJs processes (amount === number of cores)
That means that all cores are used,
request is processed by single core,
server processes several requests at once
=== UPDATE ===
If you want to divide single request processing into several threads - then just remember that cross-process communication is expensive in NodeJS, and you need to delegate huge tasks to other threads/webworkers
If you see the need to split app into several threads - consider using microservices architecture, e.g. using http://senecajs.org/
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