Java Cold Starts in Serverless - Optimizing Performance and Costs

Explore the truth about Java cold starts in serverless environments in this 56-minute conference talk from GeeCON Prague 2022. Discover why Java's reputation for slow cold starts in AWS Lambda and serverless applications is often misunderstood. Learn about the real culprits behind slow startups and how modern frameworks like Quarkus and Piranha Cloud are revolutionizing Java's performance in serverless contexts. Dive into practical demonstrations comparing these frameworks, understanding their capabilities, and seeing firsthand how they minimize cold start times. Gain insights into advanced optimization techniques, including JVM tuning, custom runtimes, and GraalVM native binaries, while also considering their limitations and cost implications. Witness live examples showcasing how Jakarta EE-based AWS Lambda functions can achieve remarkably fast cold starts, challenging preconceptions about Java's performance in serverless architectures.