OpenJDK - Concurrent Garbage Collectors: ZGC, Shenandoah, and G1 Comparison

Explore the latest concurrent garbage collectors in OpenJDK HotSpot VM in this informative conference talk. Delve into the algorithms and design goals of ZGC and Shenandoah GC, comparing them to the current default G1 GC. Gain insights into stop-the-world vs. concurrent connections, regionalized heap, copying collectors, regions, and various GC phases and threads. Learn about the evolution of garbage collection techniques and their impact on Java performance. Ideal for Java developers and performance enthusiasts seeking to understand modern garbage collection strategies in OpenJDK.

Introduction
Overview
Stop the world vs concurrent connections
Regionalised heap
Copying collector
Regions
Comparison
GC Phases
GC Threads
Shenandoah
TVB 2015