Tong Xing

About

I am a systems researcher focus on operating systems and virtualization for next-generation data centers. My recent work focuses on emerging interconnect technologies such as CXL.

I earned my PhD from the University of Edinburgh -- viva comittee: Dr. Daniel S. Berger(MSR) and Dr. Luo Mai(UoE)

I was proudly supervised by Dr. Antonio Barbalace, who has guided my italian food cooking, english accent, life style and research since my master’s studies in the USA. I completed my bachelor’s degree in China.

Contact

Email: Tong.Xing@ed.ac.uk

Address: Informatics Forum, 10 Crichton Street, Edinburgh EH8 9AB, UK

Research Interests

• Operating systems, Virtualization
• Heterogeneous-ISA platforms
• Multi-tiered memory e.g. Memory Tiering
• Software Managed Cache Coherence e.g. DSM

Selected Publications

1. T. Xing, C. Xiong, T. Wei, J. Balkind, B. Ravindran, A. Sanchez, A. Barbalace.
   Stramash: A Fused Kernel Operating System For Cache-Coherent, Heterogeneous-ISA Systems. ASPLOS ’25
2. T. Xing, A. Barbalace.
   Rethinking Applications' Address Space with CXL shared memory pools HCDS ’25
3. D. Mvondo, T. Xing, A. Barbalace.
   UTwinVM: Reliable hints on the effects of hypervisor updates on VMs in the Cloud. Middleware ’24
4. T. Xing, C. Xiong, J. Picorel, Y. Chuan, A. Barbalace.
   Maximizing VMs’ I/O Performance on Overcommitted CPUs with Fairness. SoCC ’23
5. H. Chuang*, K. Manaouil*, T. Xing*, A. Barbalace, P. Olivier, B. Heerekar, B. Ravindran.
   Aggregate VM: Why Reduce or Evict VM’s Resources When You Can Borrow Them From Other Nodes. EuroSys ’23 (Co-first author)
6. T. Xing, H. Tajbakhsh, I. Haque, M. Honda, A. Barbalace.
   Towards Portable End-to-End Network Performance Characterization of SmartNICs. APSys ’22
7. T. Xing, A. Barbalace, P. Olivier, M.L. Karaoui, W. Wang, B. Ravindran.
   H-Container: Enabling Heterogeneous-ISA Container Migration in Edge Computing. ACM TOCS
8. A. Barbalace, M.L. Karaoui, W. Wang, T. Xing, P. Olivier, B. Ravindran.
   Edge computing: the case for heterogeneous-ISA container migration. VEE ’20

Tutorials & Presentations

UK Systems Research Workshop

• Characterizing SmartNIC Architectures
• Maximize the I/O performance of overcommitted VM

H-Container Tutorial

• H-Container support for Docker on local testbed and AWS
• Tutorial demo

Programming Heterogeneous-ISA Platforms with Popcorn Linux OS and Compiler Framework)

Service

• PC, SoCC ’25
• Shadow PC, EuroSys ’25
• Student Volunteer, EuroSys ’21

Skills

• Linux kernel, KVM, containers (LXC/Docker)
• QEMU, SmartNICs/DPUs, memory tiering (NUMA/CXL)
• Languages: C, C++, Python, x86/ARM asm, Make, Shell