An Oracle-developed, low-latency Java garbage collector geared to large heaps could move to the open source community, if a proposal to do so gets community approval. Votes are due by November 8.

A proposal floating in the Java community would improve application performance by extending the ZGC (Z Garbage Collector) to maintain separate generations for young and old objects.

ZGC is a concurrent, single-generation garbage collector. Stop-The-World phases are limited to root scanning, which means GC pause times won't increase with the heap size.

JEP 439: Generational ZGC: Improves application performance by extending the Z Garbage Collector (ZGC) to maintain separate generations for young and old objects.

"ZGC has become a highly reliable and predictable garbage collection mechanism for managing huge datasets with minimal latency," Chad Arimura, Oracle's VP of Developer Relations, told me on a Zoom ...

JEP 439: Generational ZGC: Improves application performance by extending the Z Garbage Collector (ZGC) to maintain separate generations for young and old objects. Generational ZGC helps improve ...

JEP 490: ZGC: Remove the Non-Generational Mode: Helps developers reduce the maintenance cost of supporting two different modes by removing the non-generational mode of the Z Garbage Collector (ZGC).

Z GC is a scalable, low-latency garbage collector with a main goal to keep GC pause times less than 10 ms. Early access of the Z GC algorithm is available in Java 11 and 12, so if your application ...