Multiprocessing for NodeJS Web Servers: Dealing with CPU-bound tasks
<p>This article is heavily based on <a href="https://www.youtube.com/watch?v=hmTl5Y4ee_Y" rel="noopener ugc nofollow" target="_blank">Hussein Nasser’s</a> video on a similar topic. Check it out if you haven’t.</p>
<h2>Prerequisites:</h2>
<p>I don’t fancy putting big ‘pre-requisite’ blocks in my text — I find they can do more harm than good, sometimes — but I won’t deny that knowing these would make life easier for all of us:<br />
— Familiarity with the NodeJS and Express ecosystem — you’ve built an Express server, no matter how simple.<br />
— A basic knowledge of Promises(specifically async/await and .then())<br />
— A basic knowledge of asynchronous JavaScript — You should be able to write code that uses Callbacks, Promises, async/await.</p>
<h2>Intro</h2>
<p>Imagine you’re building an innovative weather forecasting app that depends on intricate meteorological simulations for pinpoint predictions. These calculations, however, pose an issue: they’re CPU-intensive and can potentially stall your application from responding and processing requests; Node.js excels in handling I/O-bound tasks with its <strong>async/await</strong> logic, but CPU-intensive operations require a different approach. In this article, we’ll embark on a journey into multiprocessing to gracefully handle CPU-bound tasks, allowing us to build high-performance applications.</p>
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