Peter Lawrey discusses Unsafe in Java 8, Project Panama in Java 17 and Java 19, including pactical uses with code examples, demo using Panama, Event Sourcing using shared memory with Chronicle Queue.

Latest version of open source Java In-Memory Data Grid Hazelcast supports entry processing, multi-thread execution, continuous queries and lazy indexing. They have also re-implemented all of the ...

Want a heap dump? Check out the jmap (Java memory map) and jhat (Java heap analysis tool) shipped with Hotspot-based JVMs (Sun, OpenJDK). Looking for a bit more?

Hadoop MapReduce has been widely embraced for analyzing large, static data sets. New technology integrates a stand-alone MapReduce engine into an in-memory data grid, enabling real-time analytics on ...

Again, the OS treats memory as one large one-dimensional array, called a memory map . Either a hardware component integrated in the master CPU or on the board does the conversion between logical and ...

The Java Runtime Environment spawns a JVM, which is a software layer that runs on top of a computer’s operating system, providing additional services specific to Java.

Please note we believe that the ability to scale on multiple JVM stances in the same machine is horizontal scalability instead of vertical. The IPC mechanisms among JVM instances are limited. Two JVM ...