RDMA Performance in Virtual Machines Using QDR InfiniBand on VSphere 5

Provided by: VMW Games
Topic: Virtualization
Format: PDF
This report details the results of Remote Direct Memory Access (RDMA) performance experiments using Mellanox QDR InfiniBand adapters in Red Hat Linux guests running on the VMware vSphere 5 virtualization platform. The authors demonstrate that latencies under 2?s and bandwidths of 26Gb/s can be achieved using guest-level RDMA with pass-through mode on VMware's ESXi hypervisor. While networking, interconnect, and storage latencies have long been of concern within the High Performance Computing (HPC) community, latency is becoming increasingly important in the modern Enterprise as well.

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