일시: 2025. 10. 16. (목요일), 오후 3시 30분 ~ 오후 5시
장소: 제4공학관 D408

Speaker: Jialin Li, Ph.D. (Sung Kah Kay Assistant Professor in the School of Computing at the National University of Singapore)

Title: Scaling Distributed Systems Design

Abstract:

Distributed systems today face increasing challenges in performance, scalability, and cost. In this talk, I will present three works with novel designs to address these challenges. The first work, NeoBFT, co-designs BFT replication protocol with programmable networking hardware to improve blockchain performance. In particular, the design offloads secure transaction ordering with authentication to a data center switch to eliminate the BFT coordination overhead due to equivocation tolerance. The second work, HyperEdge, significantly reduces the operational cost of a global-scale CDN without compromising video streaming quality. HyperEdge employs a pool of underutilized low-cost devices scattered across the globe, and carefully incorporates centralized management to guarantee content delivery performance. The last work, SimBricks, addresses the challenge of design exploration, testing, and performance evaluation of modern distributed systems. SimBricks applies a modular design philosophy, integrating battle-tested simulators for processors, hardware devices, and networks into an end-to-end simulation framework.

Bio:

Jialin Li is the Sung Kah Kay Assistant Professor in the School of Computing at the National University of Singapore. He finished his PhD at the University of Washington in 2019. His research work has been awarded best paper awards at OSDI and NSDI. His current research interests include co-designing distributed systems with modern hardware, data plane operating systems, and decentralized system infrastructure.