Xiaojian Liao

Ph.D. Student

Storage Research Group

Department of Computer Science and Technology, Tsinghua University

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

Email: liao-xj17@mails.tsinghua.edu.cn, Github, Google Scholar

About Me

I am a fifth-year Ph.D. student at Storage Research group in Tsinghua University, advised by Professor Jiwu Shu and Youyou Lu. My research interests are in file systems, flash storage and distributed systems. Recently, I’m rethinking the architecture and interfaces of modern storage hardware and software. I have designed system software and new storage protocols atop the dual-interface (byte-addressable) SSDs, which expose an additional byte interface (besides the traditional block interface) via the PMR (persistent memory region) or CMB (controller memory buffer) features of the NVMe.



in Department of Computer Science, Tsinghua University

2017 - present


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

2013 - 2017


  • Aug., 2021. Our work ccNVMe, an extended protocol of NVMe that provides atomicity and reduces PCIe traffic, has been accepted by SOSP'21.
  • Apr., 2021. Our work Max, a file system for multicore CPUs and high-performance SSDs, has been accepted by USENIX ATC'21.
  • Aug., 2020. Our work HORAE ([ˈhɔ:ri:]) (Write Dependency Disentanglement with HORAE), a new I/O stack on high-performance drives and storage arrays, has been accepted by OSDI'20.

Publication Lists

Conference Papers

  • 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
    PDF , 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
    PDF , 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'2020), 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
    PDF , Slides

Journal Papers

  • 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

Honors Awarded

  • [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)
  • [2017] Outstanding Graduate of HUST
  • [2015] National Scholarship (2% from the SE department)
  • [2014] Outstanding Undergraduate of HUST (1% from the SE department)
  • [2014] First Prize of the 6th National College Students’ Math Competition (ranked 25th in Hubei Province)