Xiaojian Liao (廖晓坚)

Postdoctoral Researcher, Storage Research Group

Department of Computer Science and Technology, Tsinghua University

Room 8-201, East Main Building, Tsinghua University, Beijing, China

Email: liaoxiaojian AT tsinghua DOT edu DOT cn, Github, Google Scholar

About Me

I am a postdoctoral researcher in the Department of Computer Science and Technology, Tsinghua University. I received my Ph.D. degree from Tsinghua University in 2022 (advised by Professor Jiwu Shu and Youyou Lu), and Bachelor degree from HuaZhong University of Science and Technology. My research interests are in file and storage systems. I’m particular interested in systems designs of emerging storage and network hardware (including NVMe SSDs, Persistent Memory, RDMA and DPUs). My work has been published on OSDI, SOSP, USENIX ATC and EuroSys. Recently, we developed a high-performance distributed file system (SuperFS) based on NVMe, RDMA and PM technologies.



in Department of Computer Science, Tsinghua University

2017 - 2022


in Department of Software Engineering, HuaZhong University of Science and Technology

2013 - 2017


  • Dec, 2022. λ-IO (an I/O stack for computational storage) has been accepted by FAST'23.
  • Nov, 2022. SuperFS (a high-performance distributed file system) got No.1 in the metadata performance of the IO500 10-node list.
  • Sep, 2022. I received ACM SIGOPS ChinaSys Doctoral Dissertation Award, 2022 (only three awardees across China).
  • Aug, 2022. RIO (efficient remote storage access) has been accepted by EuroSys'23.
  • May, 2022. I successfully defended my Ph.D. dissertation.
  • Aug, 2021. ccNVMe (crash-consistent storage protocol for NVMe SSDs) has been accepted by SOSP'21.
  • Apr, 2021. Max, a file system for multicore CPUs and high-performance SSDs, has been accepted by USENIX ATC'21.
  • Aug, 2020. HORAE ([ˈhɔ:ri:]), a new I/O stack on high-performance drives and storage arrays, has been accepted by OSDI'20.

Publication Lists

Conference Papers

  • SingularFS: A Billion-Scale Distributed File System Using a Single Metadata Server.
    Hao Guo, Youyou Lu, Wenhao Lv, Xiaojian Liao, Shaoxun Zeng, Jiwu Shu,
    USENIX Annual Technical Conference (USENIX ATC'23), 2023
  • λ-IO: A Unified IO Stack for Computational Storage.
    Zhe Yang, Youyou Lu, Xiaojian Liao, Youmin Chen, Junru Li, Siyu He, Jiwu Shu,
    The 21st USENIX Conference on File and Storage Technologies (FAST'23), 2023
    [Paper] , [Code]
  • RIO: Order-Preserving and CPU-Efficient Remote Storage Access.
    Xiaojian Liao, Zhe Yang, Jiwu Shu,
    The 18th European Conference on Computer Systems (EuroSys'23), 2023
    [Paper] , [Slides]
  • Efficient Atomic Durability on eADR-enabled Persistent Memory.
    Taiyu Zhou, Yajuan Du, Fan Yang, Xiaojian Liao, Youyou Lu,
    The 31st International Conference on Parallel Architectures and Compilation Techniques (PACT'22), 2022
  • Crash Consistent Non-Volatile Memory Express.
    Xiaojian Liao, Youyou Lu, Zhe Yang, Jiwu Shu,
    The 28th ACM Symposium on Operating Systems Principles (SOSP'21), 2021
    [Paper] , [Slides] , [Code]
  • Max: A Multicore-Accelerated File System for Flash Storage.
    Xiaojian Liao, Youyou Lu, Erci Xu, Jiwu Shu,
    USENIX Annual Technical Conference (USENIX ATC'21), 2021
    [Paper] , [Slides] , [Code]
  • OCVM: Optimizing the Isolation of Virtual Machines with Open-Channel SSDs.
    Zhe Liu, Xiaojian Liao, Fei Li, Zhe Yang, Youyou Lu, Jiwu Shu,
    International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP'20), 2020
  • Write Dependency Disentanglement with HORAE.
    Xiaojian Liao, Youyou Lu, Erci Xu, Jiwu Shu,
    The 14th USENIX Symposium on Operating Systems Design and Implementation (OSDI'20), 2020
    [Paper] , [Slides]

Journal Papers

  • Efficient Crash Consistency for NVMe over PCIe and RDMA.
    Xiaojian Liao, Youyou Lu, Zhe Yang, Jiwu Shu,
    ACM Transactions on Storage (TOS), 2023
  • A Low-Latency Storage Engine with Low CPU Overhead

    Xiaojian Liao, Zhe Yang, Hongzhang Yang, Yaofeng Tu, Jiwu Shu.
    Journal of Computer Research and Delevopment (in Chinese), 2022

Selected Honors

  • [2022] Ranked #1 in the IO500 10 Node Challenge Metadata Score
  • [2022] ACM SIGOPS ChinaSys Doctoral Dissertation Award
  • [2022] Shuimu Tsinghua Scholar (清华大学水木学者)
  • [2022] Distinguished Doctoral Graduate of Tsinghua University (清华大学优秀博士毕业生)
  • [2022] Distinguished Doctoral Dissertation Award of Tsinghua University (清华大学优秀博士学位论文)
  • [2021] Zhong Shimo Scholarship (钟士模奖学金, the highest honour of CS students, 4 postgraduate students were awarded)
  • [2021] First Prize of 1984 Innovation Scholarship (only 1 project from the CS department was awarded)
  • [2021] National Scholarship (9 PhD students from the CS department were selected)
  • [2020] ByteDance Scholars Program (10 students nationwide were selected)
  • [2015] National Scholarship (2% from the SE department)
  • [2014] Outstanding Undergraduate of HUST (1% from the SE department)