This is a small test suite for running Virtual Threads on the modern Java 21 and Spring Boot 3.2

How to run

mvn clean install

Where to find the results

./target/gatling/virtualthreadssimulation-*

How to switch Virtual Threads on and off

Please check the application.properties:

This is the default config with Virtual Threads from the Spring Boot config:

spring.threads.virtual.enabled=true
spring.threads.virtual.enabled.manually=false

This is the config for manually tuned threads:

spring.threads.virtual.enabled=false
spring.threads.virtual.enabled.manually=true

This is the config for enabling the simple platform threads:

spring.threads.virtual.enabled=false
spring.threads.virtual.enabled.manually=false

Where to find the actual test scenario

./src/test/scala/gatling/basic/VirtualThreadSimulation.scala

How to tune Gatling properties:

./src/test/resources/gatling.conf

Prerequisites

You need to install:

• Java 21 (tested on Liberica JDK 21.0.1 LTS)
• Maven (tested on the version 3.9.6)

Internally it uses:

• Spring Boot 3.2
• Gatling 3.9
• Scala 2.13
• You don't need to install any of these libs

Inspiration

I got the initial idea on how to run Gatling tests from this repo. Thank you, @amithimani!