Replicating Persistent Memory Key-Value Stores with Efficient RDMA Abstraction
summary
The talk presents Rowan, an RDMA abstraction implemented on standard RDMA NICs that aggregates concurrent remote writes for persistent-memory key-value stores and applies them to PM sequentially to avoid device-level write amplification. It explains how Rowan enables one-sided, low-latency replication and describes Rowan-KV, a log-structured PM KVS built on this abstraction, with evaluation results showing higher throughput and lower PUT latency compared to RPC- and RDMA WRITE–based replication while greatly reducing DLWA.
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