Tiara: A Programmable Line-Rate ISA for Remote Memory Access (opens in new tab)

RDMA one-sided verbs are the natural primitive for memory disaggregation, but they require the client to supply the exact remote address. The 1-RTT performance breaks down when the target address depends on data that must first be read from remote memory, a pattern we call the Indirection Wall. Indirection is pervasive: graph traversals follow pointers hop by hop, address translation walks multi-level page tables, distributed coordination requir...