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亚博取款快速到账:美国威斯康辛麦迪逊分校刘铭教授学术报告

来源: 点击: 时间:2022年07月21日 09:51

报告题目:Gimbal: Enabling Multi-tenant Storage Disaggregation on SmartNIC JBOFs

报告嘉宾:Ming Liu

报告时间:2022.7.22上午9:00

报告地点:腾讯会议 331 184 288

主持人:  蒋万春

报告摘要:

Emerging SmartNIC-based disaggregated NVMe storage has become a promising storage infrastructure due to its competitive IO performance and low cost. These SmartNIC JBOFs are shared among multiple co-resident applications, and there is a need for the platform to ensure fairness, QoS, and high utilization. Unfortunately, given the limited computing capability of the SmartNICs and the non-deterministic nature of NVMe drives, it is challenging to provide such support on today’s SmartNIC JBOFs.


In this talk, I will present Gimbal, a software storage switch that orchestrates IO traffic between Ethernet ports and NVMe drives for co-located tenants. It enables efficient multi-tenancy on SmartNIC JBOFs using the following techniques: a delay-based SSD congestion control algorithm, dynamic estimation of SSD write costs, a fair scheduler that operates at the granularity of a virtual slot, and an end-to-end credit-based flow control channel. Our prototyped system not only achieves up to X6.6 better utilization and 62.6% less tail latency but also improves the fairness for complex workloads. It also improves a commercial key-value store performance in a multi-tenant environment with X1.7 better throughput and 35.0% less tail latency on average.


嘉宾简介:

Ming Liu is an Assistant Professor in the Computer Sciences Department at the University of Wisconsin-Madison. Prior to joining UW-Madison, He received his PhD from the University of Washington in 2020 and worked as a postdoctoral researcher at VMware Research Group. He works on networking and systems, with a focus on network-based hardware acceleration (including SmartNICs/DPUs, customized interconnects, RMT switches, and network-attached active/passive devices).


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