FastMemory 0.1.1 [ALPHA-2026-08]

TITLE:
FastMemory: 4K Video Frame Buffer SIMD-Aligned Memory vs Java Heap 🚀

DESCRIPTION:
Demonstrating FastMemory, a SIMD-aligned off-heap memory allocator for Java. This performance comparison shows 4K video frame buffer processing (3840x2160 pixels, 31 MB) using 32-byte aligned native memory with page locking versus traditional Java heap arrays.

TECHNICAL HIGHLIGHTS:

• 32-Byte SIMD Alignment: AVX2/AVX-512 vector operations without alignment penalties
• Physical Page Locking: VirtualLock prevents OS swap for real-time video processing
• Zero GC Overhead: Off-heap memory eliminates garbage collection pauses
• FastPointer Integration: Direct 64-bit address arithmetic for pixel manipulation

RESULTS:

• Write Speedup: 1.1x faster than Java heap arrays (21ms vs 23ms)
• SIMD-Ready: 32-byte alignment optimal for AVX2 vector instructions
• Page-Locked: Physical RAM residency prevents swap latency
• Memory Type: Off-heap native vs heap allocation

FASTJAVA CORE REPOSITORIES:

1. FastMemory: https://github.com/andrestubbe/FastMemory
2. FastPointer: https://github.com/andrestubbe/FastPointer
3. FastSIMD: https://github.com/andrestubbe/FastSIMD
4. FastSharedMemory: https://github.com/andrestubbe/FastSharedMemory

Ecosystem Overview: https://github.com/andrestubbe/FastJava

Part of the FastJava Ecosystem — Making the JVM faster.
Made with ⚡ by Andre Stubbe

TAGS:
Java, FastJava, FastMemory, SIMD, Off-Heap, AVX2, Video Processing, Memory Alignment, VirtualLock, Page Locking

FastMemory 0.1.0

FastMemory 0.1.0 - SIMD-Aligned Off-Heap Memory Allocation

Features

• 32-byte SIMD-aligned memory allocation for AVX2/AVX-512
• Physical page locking via VirtualLock
• Zero GC overhead off-heap memory
• FastPointer integration

Installation

Maven

<dependency>
    <groupId>com.github.andrestubbe</groupId>
    <artifactId>FastMemory</artifactId>
    <version>0.1.0</version>
</dependency>

Gradle

implementation 'com.github.andrestubbe:FastMemory:0.1.0'