I am a fourth-year Ph.D. student in the Department of Computer and Information Science at the University of Pennsylvania supervised by Prof. Vincent Liu. Before Penn, I sampled random experiences in various contexts of networked systems.

My research interests are broadly in systems and networking, which attracts me with its nature of being tangible and inherently interdisciplinary (e.g., with areas including distributed systems, programming languages, and machine learning), and I am keen to acquire new knowledge with a problem-driven mindset. I also have a personal interest of peeking into the domain from the control theory perspective. Recently, I am focusing around addressing challenges to support system functions in Terabit networks, by exploiting opportunities with the emerging artifacts such as switch ASICs (programmable, non-programmable, INT-enabled), SmartNICs, FPGAs, xPUs, and high-speed interconnects.

News

• May 2023
  Cowbird accepted to SIGCOMM 2023.
• Apr 2023
  Attending NSDI 2023 in person, see you in Boston!
• Nov 2022
  Attending HotNets 2022 in person, see you in Austin!
• May 2022
  Cebinae accepted to SIGCOMM 2022.
• May 2022
  PrintQueue accepted to SIGCOMM 2022.
• Apr 2022
  Attending NSDI 2022 in person, see you in Seattle!
• Dec 2021
  OrbWeaver accepted to NSDI 2022.
• May 2021
  Selected as Penn Presidential PhD Fellow!
• May 2020
  Mantis accepted to SIGCOMM 2020.
• Aug 2019
  Passed Google Summer of Code 2019 final evaluation with Network Simulator 3.
• Aug 2019
  Started Ph.D. trajectory @ UPenn CIS!

Recent Publication

• Cowbird: Freeing CPUs to Compute by Offloading the Disaggregation of Memory
  Xinyi Chen, Liangcheng Yu, Vincent Liu, Qizhen Zhang
  SIGCOMM, Sep 2023 [To appear]
  

  

• Cebinae: Scalable In-network Fairness Augmentation
  Liangcheng Yu, John Sonchack, Vincent Liu
  SIGCOMM, Aug 2022 [paper, code, slides]
  Artifact available Artifact functional Artifact reusable

  

• PrintQueue: Performance Diagnosis via Queue Measurement in the Data Plane
  Yiran Lei, Liangcheng Yu, Vincent Liu, Mingwei Xu
  SIGCOMM, Aug 2022 [paper, code]
  Artifact available Artifact functional Artifact reusable

  

• OrbWeaver: Using IDLE Cycles in Programmable Networks for Opportunistic Coordination
  Liangcheng Yu, John Sonchack, Vincent Liu
  NSDI, Apr 2022 [paper, slides, code, video]

  

• Mantis: Reactive Programmable Switches
  Liangcheng Yu, John Sonchack, Vincent Liu
  SIGCOMM, Aug 2020 [paper, video, code, slides, APNIC blog]
  Artifact available Artifact functional Artifact reusable

  

Teaching Assistant

• CIS 553 Networked Systems, Spring 2020, University of Pennsylvania
• CIT 595 Operating Systems, Summer 2020 Coursera Online, University of Pennsylvania
• CIS 551 Computer and Network Security, Fall 2020, University of Pennsylvania

Experience (See All)

• 05/2021~04/2022
  SDE Intern & Student Researcher, NetInfra, Google LLC
• 09/2018~04/2019
  Visiting Student Researcher, Berkeley NetSys Lab, UC Berkeley
• 10/2017~02/2018
  Intern, Swedish Institute of Computer Science (RISE SICS), Kista, Stockholm
• 08/2017~01/2018
  Software Developer Intern, Ericsson, Kista, Stockholm

Award (See All)

• Penn Presidential PhD Fellow, 2021
• NSDI '21 Student Grant, 2021
• Master thesis grant, Zeno Karl Schindler Foundation (Geneva, Switzerland), 2018
• Honorable mention, IEEE ComSoc student competition, 2017
• ETH Zürich Swiss-European Mobility Program (SEMP) scholarship, 2017
• KTH student ambassador for Information and Network Engineering, 2017
• KTH one-year scholarship for academic excellence, 2017

Service (See All)

• Student Volunteer, PLDI 2021
• Shadow PC Member, Artifact Evaluation Committee Member, EuroSys 2021
• Reviewer, IEEE Transactions on Dependable and Secure Computing 2021
• Reviewer, IEEE/ACM Transactions on Networking 2020
• Reviewer, IEEE Wireless Communications Magazine 2020
• Student Volunteer, SIGCOMM 2020

Misc

• leoyu@seas.upenn.edu
• SysNet deadlines
• Vinty
• Significant Other