Heap

An off-heap reference implementation for Arrow columnar data format.

Core off-heap memory management libraries for Arrow ValueVectors.

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.

TrueZIP is a Java based Virtual File System (VFS) to enable transparent, multi-threaded read/write access to archive files (ZIP, TAR etc.) as if they were directories. Archive files may be arbitrarily nested and the nesting level is only limited by heap and file system size.

DirectMemory Cache is a multi layered cache implementation featuring off-heap memory management (a-la BigMemory) to enable efficient handling of a large number of java objects without affecting jvm garbage collection performance

HPROF heap dump parser

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

Library for efficiently working with heap and off-heap memory

VisualVM is a visual tool integrating commandline JDK tools and lightweight profiling capabilities.

VisualVM is a visual tool integrating commandline JDK tools and lightweight profiling capabilities.

VisualVM is a visual tool integrating commandline JDK tools and lightweight profiling capabilities.

VisualVM is a visual tool integrating commandline JDK tools and lightweight profiling capabilities.

Test framework to confirm suspected classloader leak, and create heap dumps to track the leaks

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

Java library to automate the analysis of Android heap dumps.

A library that offers data structures allocated off the java heap.

A free, production-ready, efficient Java library containing a collection of heap data-structures.

Core off-heap memory management libraries for Arrow ValueVectors.

LArray: A Large off-heap arrays for Scala/Java

An off-heap reference implementation for Arrow columnar data format.

In heap cache, controlled by JVM, affecting GC

WebJar for heap

VisualVM is a visual tool integrating commandline JDK tools and lightweight profiling capabilities.

VisualVM is a visual tool integrating commandline JDK tools and lightweight profiling capabilities.

LArray off-heap buffer library

Qbicc heap API

flink optimized by tencent oceanus team

The Apache Software Foundation provides support for the Apache community of open-source software projects. The Apache projects are characterized by a collaborative, consensus based development process, an open and pragmatic software license, and a desire to create high quality software that leads the way in its field. We consider ourselves not simply a group of projects sharing a server, but rather a community of developers and users.

The Apache Software Foundation provides support for the Apache community of open-source software projects. The Apache projects are characterized by a collaborative, consensus based development process, an open and pragmatic software license, and a desire to create high quality software that leads the way in its field. We consider ourselves not simply a group of projects sharing a server, but rather a community of developers and users.

The Apache Software Foundation provides support for the Apache community of open-source software projects. The Apache projects are characterized by a collaborative, consensus based development process, an open and pragmatic software license, and a desire to create high quality software that leads the way in its field. We consider ourselves not simply a group of projects sharing a server, but rather a community of developers and users.

High Performance Primitive Collections Realtime (fork of HPPC from Carrotsearch) Fundamental data structures (maps, sets, lists, queues, heaps, sorts) generated for combinations of object and primitive types to conserve JVM memory and speed up execution. The Realtime fork intends to extend the existing collections, by tweaking to remove any dynamic allocations at runtime, and to obtain low variance execution times whatever the input nature.

Heap Dump for GraalVM Insight

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).

Liferay Ant Heap Dump

Support for serializing the build time heap

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.

Imcache is a Java Caching Library. It supports various kinds of caching models that have been applied so far. Imcache intends to speed up applications by providing a means to manage cached data. It offers solutions ranging from small applications to large scale applications.

Imcache is a Java Caching Library. It supports various kinds of caching models that have been applied so far. Imcache intends to speed up applications by providing a means to manage cached data. It offers solutions ranging from small applications to large scale applications.

scala-offheap-macros

LArray off-heap buffer library

Annotation-based Servlet for handling REST APIs

An off-heap slab cache for Java.

A scalable, concurrent, in-memory Key Value (KV) map. Oak implements a concurrent Key-Value map that can keep all keys and values off-heap. This enables working with bigger heap sizes than JVM's managed heap. OakMap implements an API similar to the industry standard Java8 ConcurrentNavigableMap API. It provides strong (atomic) semantics for read, write, and read-modify-write, as well as (non-atomic) range query (scan) operations, both forward and backward. OakMap is optimized for big keys and values, in particular, for incremental maintenance of objects (update in-place). It is faster and scales better with additional CPU cores than the popular Java ConcurrentNavigableMap ConcurrentSkipListMap

LArray: A Large off-heap arrays for Scala/Java

Apache NetBeans is an integrated development environment, tooling platform, and application framework.

Tools to work with off-heap memory and byte arrays using sun.misc.Unsafe

A core Java library for HeapStats analyzer

Heapster enables monitoring of Clusters using cAdvisor.

scala-offheap

Secure off-heap memory storage for application secrets (like cryptographic keys)