UCX Overview

Unified Communication X (UCX) is a general communication framework between the application layer and the driver layer. It provides unified communication interfaces for applications and supports TCP/IP and Remote Direct Memory Access (RDMA). UCX was designed for high performance compact scenarios where RDMA can be enabled to achieve high throughput and low latency. This document describes how to deploy and configure UCX on a Kunpeng server running openEuler 20.03.

With the development of software-defined storage, the requirements for latency and CPU usage are increasingly strict, and RDMA becomes a preferred choice. The Kunpeng BoostKit for SDS RDMA network acceleration feature applies the UCX framework to enable RDMA in front- and back-end networks of a Ceph cluster. UCX can enable RDMA and TCP/IP together. It has been applied to both the front-end network and cluster network.