Talk Proposal: The Node.js Event Loop: Not So Single Threaded

[nebrius]

Abstract

You've probably heard, and possibly lamented, that Node.js is single threaded. It's true that all JavaScript executed by Node.js is run in a single thread. This means each JavScript file you write, module you require, and even Node.js itself, all contend for processing time.

But JavaScript isn't the only code in Node.js. There's also a lot of C++, most important of which is the event loop. One of the event loops responsibilities is to manage a set of threads called the thread pool. As it turns out, most C++ code in Node.js is multithreaded!

Come learn how the event loop works in detail, how it affects the performance of your app, and how you can use this knowledge to your advantage!

Details

This talk will have the following outline:

• A brief history of multitasking
• Which parts of Node.js are single threaded, and which parts are multithreaded
• A series of illustrative examples that defines behavior
• What actually is the event loop?

Previous recording

https://www.youtube.com/watch?v=zphcsoSJMvM

[carolstran]

HEY @nebrius, been a long time since 🇮🇸 - Hope you're doing well and thanks for submitting! Got you on the list and we'll let you know once the deadline passes and we've gone through all of the proposals 🤖

[nebrius]

Hey @carolstran! It has been a while. I'm glad to see your involved in Berlin.js, and I hope things have been going well for you too 😄 I'll keep an eye out for your response.

[nebrius]

Oh, and I forgot to mention that both talks were originally created as 25 minute talks, but can be scaled down to as little as probably 15 minutes if needed.

[carolstran]

Hey hey @nebrius! Just got off a call with my co-orgas and we'd love to have this talk at the JSConf Special 🎉 If you could confirm within the next couple of days that you're still available on May 30 (and still interested), that'd be lovely.

If you have any questions about the event, feel free to write here or you can DM us on Twitter!

[nebrius]

I’m still available and interested, yes! I’ll see you there

[carolstran]

Awesome then you're in! Looking forward to it ✨

We're waiting to confirm the rest of the schedule but then we'll put it on the website and announce on Twitter. If you have any updates you want to make to your talk title or description, just let me know.