Performance isolation method for send queue of rdma network interface card and rdma network interface card

Abstract

The present disclosure provides a performance isolation method for a send queue of an RDMA network interface card and an RDMA network interface card. The method includes: buffering, by an RDMA network interface card on a sending side, an identified WQE of a latency-sensitive tenant and an identified WQE of a bandwidth-sensitive tenant into a latency-sensitive group and a bandwidth-sensitive group in a buffering module, respectively; determining, by using an inter-group scheduler, whether to schedule a WQE in a latency-sensitive group or a WQE in a bandwidth-sensitive group; requesting, by a first scheduler, to schedule a latency-sensitive WQE in the latency-sensitive group by using a first scheduling algorithm; scheduling, by a second scheduler, a bandwidth-sensitive WQE in a wait station by using a second scheduling algorithm; transmitting, by the inter-group scheduler, a WQE scheduling result to a WQE processing module on the RDMA network interface card on the sending side.