SmartNIC has recently emerged as an attractive device to accelerate distributed systems. However, there has been no comprehensive characterization of SmartNIC especially on the network part. This paper presents the first comprehensive study of off-path SmartNIC. Our experimental study uncovers the key performance characteristics of the communication among the client, SmartNIC SoC, and the host. We find without considering SmartNIC hardware architecture, communications with it can cause up to 48% bandwidth degradation due to performance anomalies. We also propose implications to address the anomalies.
翻译：智能网卡（SmartNIC）是近期出现的一种有吸引力的设备，可以用于加速分布式系统。然而，至今还没有对智能网卡进行全面的特性研究，尤其是网络方面。本文提出了第一篇关于离线路径智能网卡的全面研究。我们的实验研究揭示了客户端、智能网卡SoC和主机之间的通信的关键性能特征。我们发现，如果不考虑智能网卡的硬件架构，与它进行通信可能会导致带宽下降高达48％，因为性能异常。我们还提出了解决异常的方案。
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