Heap

JRubyConcurrentConstantMemoryExcel helps you to write Excel files as fast as possible without blowing your heap.

Airframe off-heap memory library

Java Class to perform a heap dump on another jvm process that is running

JRubyConcurrentConstantMemoryExcel helps you to write Excel files as fast as possible without blowing your heap.

This API is a java library for various project scopes. Currently, it has worked in picture editors, and small applets. It can be deployed on all big three platforms : Windows, OSX and Linux. Originally, the file cache manager was the most important feature and the reason for what it was published. It becomes handful to handle heap memory before it overflows by appropriately using it (see javadoc). The new implementation lays on Maven Central repository and can be used as a dependency in a common Web Application (Java EE).

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap memory. It is a fast, scalable and easy to use embedded Java database.

Off-Heap concurrent hash map intended to store GBs of serialized data

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap memory. It is a fast, scalable and easy to use embedded Java database.

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap memory. It is a fast, scalable and easy to use embedded Java database.

Maven plugin to schedule events during performance tests: restarts, calls to other systems, heap dumps, etc.

Fastest off-heap maps for non-concurrent use cases

Off-heap Spring-compliant cache

Set implementations that allow heap-efficient subsets of other sets

O(1) malloc for off-heap storage in Kotlin, and a NativeMemoryMap based on Caffeine.

Map implementations that allow heap-efficient maps where the keys a sub-sets of other sets