Understanding RDMA Microarchitecture Resources for Performance Isolation

Explore a 14-minute conference talk from USENIX NSDI '23 that delves into the challenges of RDMA performance isolation in cloud environments. Learn about the complex NIC microarchitecture resources that impact RDMA workloads and the unique issues they present for multi-tenant cloud systems. Discover a new model for representing RDMA operations' use of RNIC resources and a test suite developed to evaluate existing performance isolation solutions. Gain insights into the limitations of current approaches and the potential directions for future RDMA performance isolation designs. Understand the implications of this research for cloud providers aiming to support RDMA in general-purpose guest VMs and benefit third-party workloads while maintaining strong performance isolation between tenants.