Java® Performance Companion

2. Garbage First Garbage Collector in Depth

This chapter aims at providing in-depth knowledge on the principles supporting HotSpot’s latest garbage collector: the Garbage First garbage collector (referred to as G1 GC for short). These principles were highlighted in Chapter 1, “Garbage First Overview.”

At various points during the narration, concepts like the collection cycles, internal structures, and algorithms will be introduced, followed by comprehensive details. The aim is to document the details without overloading the uninitiated.

To gain the most from the chapter, the reader is expected to be familiar with basic garbage collection concepts and terms and generally how garbage collection works in the Java HotSpot JVM. These concepts and ...