Java ZGC - The Z Garbage Collector

[Brian]

The Z Garbage Collector, also known as ZGC, is a scalable low 
latency garbage collector designed to meet the following goals:

     Pause times do not exceed 10ms
     Pause times do not increase with the heap or live-set size
     Handle heaps ranging from a few hundred megabytes to multi 
terabytes in size

At a glance, ZGC is:

     Concurrent
     Region-based
     Compacting
     NUMA-aware
     Using colored pointers
     Using load barriers

At its core, ZGC is a concurrent garbage collector, meaning all 
heavy lifting work is done while Java threads continue to 
execute. This greatly limits the impact garbage collection will 
have on your application's response time.