What is RDMA?

Remote Direct Memory Access (RDMA) is a memory-to-memory communication mechanism that allows one computer to directly access the memory of another without involving the operating system or CPU of either system. This significantly reduces latency and CPU overhead, leading to improved performance in data-intensive applications such as high-performance computing, data centers, and storage systems. RDMA is commonly used to accelerate data transfer between servers, storage devices, and other networked systems.