Performance Characterization of SmartNIC NVMe-over-Fabrics Target Offloading
Jiexiong Xu, Yue Qiu, Yiquan Chen, Yijing Wang, Wenhai Lin, Yiquan Lin, Shushu Zhao, Yuqi Liu, Ying Wang, Wenzhi Chen · 2024
The NVMe-over-Fabrics (NVMe-oF) is gaining popularity in cloud data centers as a remote storage protocol for accessing NVMe storage devices across servers. With the rapid increase in throughput of the NVMe storage devices, the NVMe-oF stack consumes a significant amount of valuable CPU resources. To release these valuable computing power to other tasks, many smartNICs now support NVMe-oF Target offloading. However, this emerging NVMe-oF offloading scheme's performance has not been fully investigated.