QuestDB is a high performance, open-source, time-series database

Jlama is a modern LLM inference engine for Java

Llama 3+ inference in pure Java

A Java version of simdjson, a high-performance JSON parser utilizing SIMD instructions

Fast & memory efficient hash tables for Java

A high-performance Llama3 implementation using Micronaut and GraalVM Native Image

A Google Swiss table implementation written in Java

Basic speed tests on SIMD operations with Java 13 Vector API

A proof-of-concept implementation of swisstable in Java using Vector API

Fast Java implementations of programs tested on "The Computer Language Benchmarks Game" using not yet standardized OpenJDK features

System benchmarks over JVM with JMH - SIMD (superscalar processing), Branch prediction, False sharing.

Faster alternative implementations of Arrays.hashCode(byte[])

An SIMD-powered search algorithm in Java that beats binary search for larger arrays

Ultra-fast, SIMD-accelerated full-text search engine built on Java 22.

Android image filtering with Assembly

⚡High-performance math library for Java. JNI SIMD + OpenCL GPU acceleration. Faster than java.lang.Math.

High-performance math library using Java Vector API (requires JDK 26+)

Introduction to cache coherence: false sharing, MESI protocol and vectorization

Java Native Vectorisation Interface (JNVI)

SIMD operations, CERN's COLT vs DeepLearning4J - Vectorization for Deep Learning