Huaicheng LI


Assistant Professor, Virginia Tech CS

Office: 1149 Knowledge Works II

Email: huaicheng@cs.vt.edu

Code: Github

Google Scholar | DBLP

Curriculum Vitae: [pdf]

About

I am an Assistant Professor in the Computer Science department at Virginia Tech (since Fall 2022). My group focuses on fundamental Computer Systems research in the areas of Operating Systems, Storage Systems, Memory Systems, and Systems Architecture. We analyze/benchmark, hack, design, and build systems to explore better systems support for modern/emerging {compute,storage,memory} x {hardware,interfaces,applications} for improved {performance,resource efficiency,programmability}. Our research themes are:

Our research have won prestigious awards (here), generated real-world impact with production deployment in data centers and up-streaming to the official Linux kernel. We maintain FEMU, a storage research platform widely used in the research community. All of our research are open-sourced.

For most up-to-date information, please refer to Huaicheng's CV.

Prospective students: I'm looking for students to join my group. Please check the detailed opening information here. If you're interested, please fill in this form and send me an email (as a reminder).

Publications

Arxiv First-generation Memory Disaggregation for Cloud Platforms
arXiv:2203.00241
Huaicheng Li, Daniel S. Berger, Stanko Novakovic, Lisa Hsu, Dan Ernst, Pantea Zardoshti, Monish Shah, Ishwar Agarwal, Mark D. Hill, Marcus Fontoura, Ricardo Bianchini
ASPLOS'23
RAIZN: Redundant Array of Independent Zoned Namespaces.
Thomas Kim, Jekyeom Jeon, Nikhil Arora, Huaicheng Li, Michael Kaminsky, David Andersen, Gregory R. Ganger, George Amvrosiadis, Matias Bjørling (Conditionally Accepted)
SYSTOR'22
Best Paper Award
Fantastic SSD Internals and How to Learn and Use Them
In Proceedings of the 15th ACM International Systems and Storage Conference (SYSTOR), 2022.
Nanqinqin Li, Mingzhe Hao, Huaicheng Li, Xing Lin, Tim Emami, and Haryadi S. Gunawi.
[paper] [slides] [code]
SOSP'21 IODA: A Host/Device Co-Design for Strong Predictability Contract on Modern Flash Storage
In Proceedings of the 28th ACM Symposium on Operating Systems Principles (SOSP), 2021.
[Acceptance Rate: 15.5%, 54 out of 348]
Huaicheng Li, Martin L. Putra, Ronald Shi, Xing Lin, Gregory R. Ganger, Haryadi S. Gunawi.
artifact-available artifact-available artifact-available
[paper] [slides] [animation] [short talk] [long talk] [poster] [code]
ASPLOS'20 LeapIO: Efficient and Portable Virtual NVMe Storage on ARM SoCs
In Proceedings of the 25th ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS), 2020.
[Acceptance Rate: 18.1%, 86 out of 476]
Huaicheng Li, Mingzhe Hao, Stanko Novakovic, Vaibhav Gogte, Sriram Govindan, Dan R. K. Ports, Irene Zhang, Ricardo Bianchini, Haryadi S. Gunawi, Anirudh Badam.
[paper] [slides] [animation] [talk] [code]
FAST'18 The CASE of FEMU: Cheap, Accurate, Scalable and Extensible Flash Emulator
In Proceedings of the 16th USENIX Conference on File and Storage Technologies (FAST), 2018.
[Acceptance Rate: 16.5%, 23 out of 139]
Huaicheng Li, Mingzhe Hao, Michael Hao Tong, Swaminathan Sundararaman, Matias Bjørling, Haryadi S. Gunawi.
[paper] [slides] [animation] [poster] [talk] [code]
FAST'18
Best Paper Nominee
Fail-Slow at Scale: Evidence of Hardware Performance Faults in Large Production Systems
In Proceedings of the 16th USENIX Conference on File and Storage Technologies (FAST), 2018.
[Acceptance Rate: 16.5%, 23 out of 139]
Haryadi S. Gunawi, Riza O. Suminto, Russell Sears, Casey Golliher, Swaminathan Sundararaman, Xing Lin, Tim Emami, Weiguang Sheng, Nematollah Bidokhti, Caitie McCaffrey, Gary Grider, Parks M. Fields, Kevin Harms, Robert B. Ross, Andree Jacobson, Robert Ricci, Kirk Webb, Peter Alvaro, H. Birali Runesha, Mingzhe Hao, Huaicheng Li.
[paper] [slides] [animation] [poster] [dataset]
Coverage: the Morning Paper, ZDNet, HackerNews
SOSP'17 MittOS: Supporting Millisecond Tail Tolerance with Fast Rejecting SLO-Aware OS Interface
In Proceedings of the 26th ACM Symposium on Operating Systems Principles (SOSP), 2017.
[Acceptance Rate: 16.8%, 39 out of 232]
Mingzhe Hao, Huaicheng Li**, Michael Hao Tong, Chrisma Pakha, Riza Suminto, Cesar Stuardo, Andrew A. Chien, Haryadi S. Gunawi.
[paper] [slides] [animation] [poster] [talk] [code]
** Almost equal-contribution as the first-author
FAST'17
Best Paper Nominee
Tiny-Tail Flash: Near-Perfect Elimination of Garbage Collection Tail Latencies in NAND SSDs
In Proceedings of the 15th USENIX Conference on File and Storage Technologies (FAST), 2017.
[Acceptance Rate: 24.1%, 28 out of 116]
Shiqin Yan, Huaicheng Li, Mingzhe Hao, Michael Hao Tong, Swaminathan Sundararaman, Andrew A. Chien, Haryadi S. Gunawi.
[paper] [slides] [animation] [poster] [talk] [code]
===========
Journal papers
TOS'22 Extending and Programming the NVMe I/O Determinism Interface for Flash Arrays
ACM Transactions on Storage (TOS), Volume XX, Issue X, 2022.
[Extended version of the IODA paper at SOSP'21] (To Appear)
Huaicheng Li, Martin L. Putra, Ronald Shi, Xing Lin, Gregory R. Ganger, Haryadi S. Gunawi.
TOS'18
Fast-Tracked
Fail-Slow at Scale: Evidence of Hardware Performance Faults in Large Production Systems
ACM Transactions on Storage (TOS), Volume 14, Issue 3, November 2018.
[Extended version of the FailSlow paper at FAST'18]
Haryadi S. Gunawi, Riza O. Suminto, Russell Sears, Casey Golliher, Swaminathan Sundararaman, Xing Lin, Tim Emami, Weiguang Sheng, Nematollah Bidokhti, Caitie McCaffrey, Gary Grider, Parks M. Fields, Kevin Harms, Robert B. Ross, Andree Jacobson, Robert Ricci, Kirk Webb, Peter Alvaro, H. Birali Runesha, Mingzhe Hao, Huaicheng Li.
TOS'17
Fast-Tracked
Tiny-Tail Flash: Near-Perfect Elimination of Garbage Collection Tail Latencies in NAND SSDs
ACM Transactions on Storage (TOS), Volume 13, Issue 3, October 2017.
[Extended version of the TinyTail-Flash paper at FAST'17]
Shiqin Yan, Huaicheng Li, Mingzhe Hao, Michael Hao Tong, Swaminathan Sundararaman, Andrew A. Chien, Haryadi S. Gunawi.

Dissertation

Evolving Storage Stack for Predictability and Efficiency
Ph.D. Thesis, University of Chicago. Nomination for ACM SIGOPS Dissertation Award (1 per department)
Huaicheng Li
2020

Teaching Experience

  • Instructor, CS3214: Computer Systems (Fall 2022), Virginia Tech
  • 2022
  • Co-Instructor, 18-746 Storage Systems (Fall 2021), Carnegie Mellon University
  • 2021
  • Guest Lecturer, 18-746 Storage Systems (Fall 2020), Carnegie Mellon University
  • 2020

    Student Advising

    VT students

  • Jinshu Liu (Ph.D. student)
  • 2022-Present

    Pre-VT mentees/collaborators

  • CMU: Nirjhar Mukherjee, Thomas Kim, Zixu Chen, Aditya Shetty
  • 2020-2022
  • UChicago: Martin L. Putra, Fadhil I. Kurnia, Yesa Rahmad, Ronald Shi, etc.
  • 2018-2021

    Honors & Awards

  • SYSTOR'22 Best Paper Award ("Fantastic SSD Internals")
  • 2022
  • Distinguished Reviewer Award, SYSTOR'21
  • 2021
  • FAST'18 Best Paper Nominee ("Fail-Slow At Scale")
  • 2018
  • FAST'17 Best Paper Nominee ("Tiny-Tail Flash")
  • 2017

    Service

    Program Committee (PC)

  • ASPLOS'23 (ERC)
  • 2022
  • APSys'21, SYSTOR'21
  • 2021

    Journal Reviewing

  • TOS, TOCS, TPDS, TC, JPDS, CACM
  • 2018-2021

    Open-source Software

  • IODA: A Host/Device Co-Design for I/O Determinism on Modern Flash Storage, Star Fork
  • 2021
  • LeapIO: A Framework for Efficient Storage Offloading to ARM SoCs, Star Fork
  • 2020
  • FEMU: Fast, Accurate, Scalable and Extensible NVMe SSD Emulator, Star Fork
  • 2018
  • MittSSD: OS Support for Millisecond-level Tail Tolerance, Star
  • 2017
  • ttFlash: A Flash Storage Architecture Design for Tiny Tail Latencies, Star Fork
  • 2017
  • Contributor of the Linux Kernel OpenChannel-SSD Subsystem, pblk taget, Commit, Star Fork
  • 2017