Z Garbage Collector (ZGC) is an innovative garbage collection algorithm introduced by Oracle in JDK 11. Its principal aim is to minimize application pause times on the Java Virtual Machine (JVM), making it particularly suitable for modern applications that necessitate low latency and high-throughput performance.
ZGC adopts a generational approach to garbage collection, segmenting the heap into two generations: the Young Generation and the Old Generation (also referred to as the Mature Generation). The Young Generation is further divided into the Eden space and two survivor spaces. The Old Generation is where long-lived objects are eventually relocated.