Qunar Tech Salon

Dec 23, 2020 · Fundamentals

Exploring Java Serviceability Agent (SA): JVM Memory Model, JIT, and Low‑Level Debugging Tools

This article provides a comprehensive, English‑language walkthrough of Java Serviceability Agent (SA), covering how to obtain and analyze JVM internal structures, the memory model and Linux process layout, the oop/klass split, JIT compilation mechanics, and the implementation of tools such as jmap and jstack, all illustrated with code snippets and diagrams.