TCP ≈ RDMA: CPU efficient Remote Storage Access with i10
summary
i10 is a kernel-only implementation of a remote storage stack that runs on commodity NICs and lets unmodified applications use the kernel TCP/IP path while avoiding user/kernel copy overheads. It implements new TCP data path and buffer management, shows microbenchmarks and end-to-end experiments, and saturates a 100 Gbps link for remote accesses while using CPU cycles comparable to RDMA solutions, delivering RDMA-like CPU cost with TCP.
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