RDMA技术研究综述

RDMA Technology Research: A Survey

RDMA技术是一种直接内存访问技术,其可以实现将数据从一台计算机直接传递到另一台计算机而无需操作系统的介入,从而实现高吞吐、低延迟的网络通信。近年来,为了充分发挥RDMA的优势,RDMA通常与各类技术相结合以提升其可扩展性。将RDMA技术应用于数据库中,有助于提升数据库的高可用性。基于RDMA的新型存储技术可提高网络性能、存储扩展能力及易用性。在介绍RDMA实现原理的基础上,针对当前RDMA技术行业应用的最新研究进展,分析其实现的具体思路以及存在的优势,探索未来RDMA可进一步拓展的方向。

RDMA technology is a direct memory access technology, which can realize the direct transfer of data from one computer to another without the intervention of the operating system, thereby realizing high-throughput and low-latency network communication. In recent years, in order to give full play to the advantages of RDMA and improve scalability, RDMA is usually combined with various technologies and is widely used. The combination of RDMA technology and database technology can greatly improve the high availability performance of the database;new RDMA-based storage technology can improve network performance, Storage expansion capacity, improve ease of use. On the basis of introducing the principles of RDMA implementation, aiming at the latest research progress in the application of the current RDMA technology industry, analyzing the specific ideas and existing advantages of the research, and exploring the direction in which RDMA can be further expanded in the future.