Gradle Plugin bootRun Optimizations Reduce Application Performance on Temurin-17 JDK about spring-boot

[wilkinsona]

Both bootRun and spring-boot:run are focused on fast startup of the JVM:

By default, bootRun will configure the JVM to optimize its launch for faster startup during development.

This comes at the cost of potentially reduced peak performance. I think that's what you're seeing here and I don't think it's specific to any particular JVM.

As the documentation states, the goal is to speed things up during application development when starting the app occurs frequently. Where peak performance is required, the application should be started in a way that's intended for a "production" environment. That's often java -jar or java -cp with an exploded jar referencing Spring Boot's launcher or the application's main class directly.

I don't think we should change anything here. From what we've seen, your situation is atypical and I think the current defaults are working as documented and strike the right balance. Thanks anyway for raising your concerns.

[locosmac]

Thank you for the feedback.