IObundle Promotes IOb-Cache: Premier Open-Source Cache System for AI/ML Memory Bottlenecks

LISBON, Portugal - Feb. 24, 2026  -- IObundle, Lda has announced significant enhancements to IOb-Cache, the industry's most advanced open-source cache IP core. This peer-reviewed, proven system is now positioned as the definitive solution for overcoming memory access bottlenecks in modern AI and machine learning applications.

A New Standard in Open-Source Architecture IOb-Cache offers capabilities typically reserved for proprietary solutions. Published in the journal Algorithms (2021), it has undergone continuous refinement based on real-world deployments. It stands out as a comprehensive system supporting multiple replacement policies and configurable write strategies (write-through/not-allocate and write-back/allocate).

Solving the "Memory Wall" As AI/ML workloads push computational limits, memory latency remains a primary bottleneck. IOb-Cache addresses this through:

• High-Performance Pipeline: Handles one request per clock cycle for both reads and writes.
• Flexible Configuration: Adjustable ways, address width, line size, and words per line.
• Advanced Policies: Configurable replacement strategies to maximize hit rates.
• Dual Write Modes: Choice of write-through or write-back based on specific workload needs.
• Optimization Tools: A built-in cache-control module for real-time performance monitoring.

Production-Ready Integration Designed for modern hardware workflows, IOb-Cache ensures seamless adoption:

• Versatile Interfaces: Supports both Native IOb (pipelined) and AXI4.
• Modern Frameworks: Integrated with Py2hwsw (Python-based SoC adoption) and FuseSoC for immediate deployment.
• Proven Reliability: Successfully deployed in multiple production systems with complete documentation and integration examples.

Technical Excellence & Open Source Freedom "Memory access efficiency is the make-or-break factor in today's AI and ML systems," says José T. de Sousa, founder and CEO of IObundle. "IOb-Cache provides the sophisticated capabilities these applications demand with the transparency only open source can deliver."

The core is released under the MIT License, allowing unrestricted use in both commercial and non-commercial projects. Recent updates have further improved reliability and synthesis results across various FPGA platforms.

Availability

IOb-Cache is available now on the IObundle GitHub repository: https://github.com/IObundle/iob-cache. The package includes Verilog source code, FuseSoC-compatible releases, and the Py2hwsw framework.

About IObundle

IObundle, Lda specializes in industrial-grade semiconductor IP cores for FPGA and ASIC designs, bridging the gap between production-quality reliability and open-source flexibility.