Why You Don't Need to Worry About Scaling Your Spring Web App with Marco Behler

When writing a new Spring web app, teams often have some nagging scaling doubts:

- How many users can my app simultaneously handle?
- How fast will my @RestControllers dash out those JSON responses?
- How much memory, CPU, or I/O does my application need?
- How much money do I need to spend on hosting?

Surprisingly, there's very little advice out there on how to sensibly approach these questions in a practical way—apart from simply autoscaling random Kubernetes pods into oblivion.

In this #almostnoslides session, we’re going to use an IDE, a pen tablet, and a few libraries to get a deep, practical understanding of the following:

- Throughput and latency: How to (reliably) find out how many users your Spring app can handle
- CPU/memory/IO: How much (or how little) your app actually needs
- Hosting: What server your app needs

By the end of this talk, you’ll have learned solid load-testing processes and skills that make you never worry about scaling your Spring web apps again.

Resources

[AleksandarT]

Awesome talk! The point that Marco made is straight on point. Most of the time 99.99% of the applications will never have such scale - so we do not need to worry :D

[codecoffee-farsi]

Wonderful talk @Marco, what a great explanation. Thank you.