Spring I/O 2024 - 30-31 May, Barcelona

Slides: https://2024.springio.net/slides/efficient-containers-with-spring-boot-3-java-21-and-cds-springio24.pdf

Repo: https://github.com/sdeleuze/petclinic-efficient-container/

Spring Boot 3 brings runtime efficiency and performance related enhancements in order to optimize and reduce the cost of the hosting of your Spring Boot applications deployed as containers on production.

In this presentation, Sébastien will share an overview on how to migrate Spring Boot 2 applications running on Java 8 to Spring Boot 3 running on Java 21, and how to leverage builtin support for technologies like Virtual Threads, Spring Ahead-Of-Time optimisations, CDS and Buildpacks to run them faster and more efficiently on the JVM.

Sébastien will also share related data points and provide a glimpse into the future by demonstrating how Project Leyden should allow to speedup even more the startup and warmup of your Spring Boot applications.

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Sébastien Deleuze explains how to enhance runtime efficiency in Spring Boot applications using Spring Boot 3, Java 21, and Class Data Sharing (CDS). Key focuses include minimizing startup time, reducing memory consumption, and optimizing container deployments. Deleuze introduces features such as native image support, ahead-of-time (AOT) optimizations, and virtual threads, which collectively improve application performance and scalability. He also highlights improvements in developer experience with Spring Boot 3.1 and the integration of CDS in Spring Boot 3.3, demonstrating practical steps and benchmarking results to showcase these optimizations.

Efficient containers with Spring Boot 3, Java 21 and CDS by Sébastien Deleuze @ Spring I/O 2024