How is Leyden improving Java Performance? Part 1 of 3

In this series of 3 blog posts we will explain how OpenJDK project Leyden is helping to improve a specific area of performance where Java has notably lagged behind other languages i.e. application ‘startup’, ‘warmup’, and ‘initial footprint’. Part 1 explains what those terms mean and why Java faces challenges in matching the behaviour of other languages. It then provides an overview of what Leyden has done to improve startup and warmup in existing JDK releases and what is planned for upcoming releases. Part 2 describes how to use the new capabilities offered by Leyden and presents test results which show that very significant progress has already been made and is set to continue. Part 3 provides a more detailed account of how Leyden’s proposed solution operates and presents a first look at tooling that allows you to assess the benefits that result and tune your application to make the most of what Leyden offers. A Brief History of Java Performance Java has been one of the most popular