What's everyone favorite solution for load testing a Kotlin server?

# server

[mbonnin]

What's everyone favorite solution for load testing a Kotlin server?

[hho]

Why would it matter that it's a Kotlin server?

[CLOVIS]

I have used

while true; do
    curl …
done

before, but I assume you're searching for something a bit more advanced? 😅

[mbonnin]

Why would it matter that it's a Kotlin server?

So that I don't have to learn another language to setup my test suite

[mbonnin]

I see a bunch of python and go scripts out there which I'd like to avoid

[hho]

But then the question should be: "What's everyone's favorite Kotlin solution for load testing a server?"

[mbonnin]

True

[mbonnin]

But is there one?

[Sam]

Gatling is okay in Kotlin. But to be honest, load testing tools have such specific DSLs that you'll feel like you're learning a new language anyway.

[mbonnin]

Yea, I've taken a quick look at both Gatling and JMeter and it seems like a lot to take in

[Sam]

I'd just pick a tool you like and not worry too much about what language it's in. I've used k6 for a small project, and Gatling + Kotlin for a bigger one. I wish I'd just stuck to k6 for both.

[Lidonis Calhau]

I have used gatling for complicated setup or just ktor + coroutine for simple stuff

[hho]

k6 is my favorite too, but it's JS – not Kotlin

[mbonnin]

Will take a look at k6, thanks!

[mbonnin]

In case anyone is interested, I found this page to be a pretty good presentation of the various tools: https://grafana.com/blog/2020/03/03/open-source-load-testing-tool-review/

[Dariusz Kuc]

if you want to easily test the server limits -> https://github.com/tsenart/vegeta

[Dariusz Kuc]

I'd pick gatling over jmeter but they don't get anywhere near close in the perf of vegeta

[Tim Mortimer]

Another vote for k6 here!

[mbonnin]

k2, k6, ... it all makes sense ⛰️ !

[Lee Turner]

I have used Locust before which is a python based load testing tool - https://locust.io/

The nice thing about Locust is that it allows you to create workers in a range of supported languages and java/kotlin is one of those languages - https://github.com/myzhan/locust4j

Good article here on integrating the two and creating tests in both Java and Kotlin - https://www.blazemeter.com/blog/locust-performance-testing