Intro

Again learning about Garbage collection, I found about ZGC collector. A quite interesting concurrent region-based collector that aims for 10ms or less pause times.

ZGC

Experimental with JDK  11. The Oracle developers video.

Goals

The aim is to keep it easy to tune.

Multi-terabyte heaps

15% throughput reduction

10ms pause time

   >> Pause times do not increase with heap or live-set size

   >> Pause times do increase with root-set size

Enabling  THP

For use THP on ZGC, we must enable using -XX:+UseTransparentHugePages

REFs

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