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Opsian is a lightweight continuous production profiling tool for the Java Virtual Machine. Understand what your code is actually doing in production.

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Java’s new garbage collector promises low pause times on multi-terabyte heaps

2018372 points234 comments Software Engineering details

Java 11 features a new Garbage Collector, the Z Garbage Collector (ZGC), which is designed for very low pause times on huge multi-terabyte heaps. In this article we'll cover the motivation for a new GC, a technical overview and some of the really exciting possibilities ZGC opens up.