RDMA (Remote Direct Memory Access) service quality assurance method and system for multiple application scenes of data center

• Main Authors: WANG XIAOLIANG, SONG HEXIANG, LU SANGLU
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a data center multi-application scene-oriented RDMA (Remote Direct Memory Access) service quality assurance method and system, a traffic sender marks data as a delay sensitive type or a bandwidth sensitive type according to a priority identifier and a data size of the data when submitting a sending request, and for delay sensitive type traffic data, the traffic data is marked as a bandwidth sensitive type or a bandwidth sensitive type. The flow sender only measures the completion time of each message and further calculates the end queuing delay of each message, and for bandwidth sensitive flow data, the flow sender controls the bandwidth sensitive flow sending rate according to the calculated queuing delay; in the system, data packaging and classification, delay judgment calculation and sending rate adjustment are realized through a network communication thread module and a service quality thread module in an application process. For a complex flow model of a data center, description i