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Learn about a groundbreaking system for memory disaggregation in datacenters through this 14-minute conference presentation from NSDI '25. Discover how researchers from Shanghai Jiao Tong University developed ODRP (On-Demand Remote Paging), the first system to intelligently chain native RDMA data path primitives for offloading memory access and management operations directly onto RDMA-capable NICs. Explore the challenges of current RDMA-based memory disaggregation systems that rely on control path operations, leading to performance-memory utilization trade-offs and high CPU usage on memory nodes. Understand how ODRP addresses these limitations by leveraging OS swapping semantics and adopting a client-assisted principle to overcome RNIC capability constraints. Examine the system's impressive results, achieving significantly better memory utilization with zero CPU usage while introducing only 0.8% to 14.6% performance overhead in real-world applications compared to state-of-the-art systems. Gain insights into the technical innovations that enable dynamic memory management in the RDMA data path and the implications for next-generation datacenter architectures.
