Zhuolong Yu

Professor (特任教授)
Department of Computer Science and Technology
University of Science and Technology of China
E-mail: zhuolongyu [at] ustc [dot] edu [dot] cn

Zhuolong Yu

About me

Zhuolong Yu is currently a Professor (特任教授) at the School of Computer Science and Technology, University of Science and Technology of China (USTC). He received his Ph.D. from Johns Hopkins University, where he was advised by Prof. Xin Jin and Prof. Vladimir Braverman.

Before joining USTC, he spent two and a half years at Microsoft, working on high-performance networking—particularly RDMA—to support hyperscale AI training workloads (including large-scale training clusters for GPT-4.5, and cross-region training) and cloud storage systems (Azure Storage).

His research interests include designing high-performance and programmable networked systems for cloud and AI workloads, low-latency communication and RDMA for large-scale distributed systems, and cloud-scale data center networks and intelligent computing infrastructure.

余卓隆,现为中国科学技术大学计算机科学与技术学院特任教授,博士生导师。 他于约翰斯·霍普金斯大学获得博士学位,师从金鑫(Xin Jin)教授Vladimir Braverman 教授

在加入中国科学技术大学之前,他曾在微软公司工作两年半,主要从事高性能网络系统的研发,重点聚焦 RDMA 技术, 为超大规模 AI 训练系统(包括 GPT-4.5 等大模型训练集群,和跨地域大模型训练)以及云存储系统(Azure Storage)提供底层网络支撑。

他的研究方向包括:面向云计算与人工智能负载的高性能与可编程网络系统设计, 大规模分布式系统中的低时延通信与 RDMA 技术,以及云规模数据中心网络与智能计算基础设施。


Education

  • Ph.D. in Computer Science, Johns Hopkins University, 2023
  • Master in Computer Science, University of Science and Technology of China, 2018
  • Bachelor in Computer Science, University of Science and Technology of China, 2015

  • Selected Publications

  • Enabling Reconfiguration-Communication Overlap for Collective Communication in Optical Networks
    Changbo Wu, Zhuolong Yu, Gongming Zhao, Hongli Xu
    arXiv 2025
    [PDF]
  • SDR-RDMA: Software-Defined Reliability Architecture for Planetary Scale RDMA Communication
    Mikhail Khalilov, Siyuan Shen, Marcin Chrapek, Tiancheng Chen, Kenji Nakano, Peter-Jan Gootzen, Salvatore Di Girolamo, Rami Nudelman, Gil Bloch, Sreevatsa Anantharamu, Mahmoud Elhaddad, Jithin Jose, Abdul Kabbani, Scott Moe, Konstantin Taranov, Zhuolong Yu, Jie Zhang, Nicola Mazzoletti, Torsten Hoefler
    SC 2025
    [Artifacts Available] [Artifacts Functional] [Artifacts Reusable]
    [PDF][Code]
  • Uno: A One-Stop Solution for Inter-and Intra-Datacenter Congestion Control and Reliable Connectivity
    Tommaso Bonato, Sepehr Abdous, Abdul Kabbani, Ahmad Ghalayini, Nadeen Gebara, Terry Lam, Anup Agarwal, Tiancheng Chen, Zhuolong Yu, Konstantin Taranov, Mahmoud Elhaddad, Daniele De Sensi, Soudeh Ghorbani, Torsten Hoefler
    SC 2025
    [Artifacts Available] [Artifacts Functional] [Artifacts Reusable]
    [PDF][Code]
  • Understanding the Micro-Behaviors of Hardware Offloaded Network Stacks with Lumina
    Zhuolong Yu, Bowen Su, Wei Bai, Shachar Raindel, Vladimir Braverman, Xin Jin
    SIGCOMM 2023
    Extensively used at Microsoft and NVIDIA to debug and validate new RDMA transport features (e.g., multipath RDMA, long-haul RDMA) for large-scale AI and storage systems.
    [PDF][Code]
  • Zeta: A Scalable and Robust East-West Communication Framework in Large-Scale Clouds
    Qianyu Zhang, Gongming Zhao, Hongli Xu, Zhuolong Yu, Liguang Xie, Yangming Zhao, Chunming Qiao, Ying Xiong, Liusheng Huang
    NSDI 2022
    [PDF]
  • Programmable packet scheduling with a single queue
    Zhuolong Yu, Chuheng Hu, Jingfeng Wu, Xiao Sun, Vladimir Braverman, Mosharaf Chowdhury, Zhenhua Liu, Xin Jin
    SIGCOMM 2021
    [Artifacts Available] [Artifacts Functional] [Artifacts Reusable]
    [PDF] [Slides] [Code]
  • Twenty Years After: Hierarchical Core-Stateless Fair Queueing
    Zhuolong Yu, Jingfeng Wu, Vladimir Braverman, Ion Stoica, Xin Jin
    NSDI 2021
    [PDF] [Slides] [Code]
  • NetLock: Fast, Centralized Lock Management Using Programmable Switches
    Zhuolong Yu, Yiwen Zhang, Vladimir Braverman, Mosharaf Chowdhury, Xin Jin
    SIGCOMM 2020
    [Artifacts Available] [Artifacts Functional] [Artifacts Reusable]
    [PDF] [Slides] [Code]
  • QPipe: Quantiles Sketch Fully in the Data Plane
    Nikita Ivkin*, Zhuolong Yu*, Vladimir Braverman, Xin Jin
    CONEXT 2019
    (* Equal Contribution)
    [PDF] [Slides(pdf)] [Slides(keynote)] [Code]
  • Minimizing Flow Statistics Collection Cost of SDN Using Wildcard Requests
    Hongli Xu, Zhuolong Yu, Chen Qian, Xiang-yang Li, Zichun Liu, Liusheng Huang
    INFOCOM 2017
    [PDF]
  • Realtime update with joint optimization of route selection and update scheduling for SDNs
    Hongli Xu, Zhuolong Yu, Xiang-yang Li, Chen Qian, Liusheng Huang, Taeho Jung
    ICNP 2016
    (Best paper runner-up, fast-tracked to IEEE/ACM Transaction on Networking)
    [PDF]
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