Optimizing the JVM and GC
The JVM is the core runtime environment for executing Java applications, and its performance directly influences application efficiency and scalability. We will explore strategies for optimizing the JVM and configuring the GC to minimize latency, improve throughput, and reduce memory overhead. But first, let’s take a step back and revisit the JVM and GC.
Revisiting the JVM
The JVM is pivotal in the Java ecosystem, providing a consistent execution environment across diverse hardware and operating systems (OSs). Understanding how the JVM manages memory and CPU resources is essential for performance-critical applications. The JVM architecture is illustrated in Figure 13.1.

Figure 13.1: JVM architecture
The diagram shows the architecture of the JVM. The class files contain the compiled bytecode, which the Class Loader subsystem is responsible for loading into memory. The runtime data areas manage various memory regions...