About Me

I’m a Ph.D. candidate at Brown University advised by Nikos Vasilakis in the Atlas Research Group. My research interests include distributed systems, operating systems, and cloud computing—with a particular focus on performance prediction and optimization for modular software architectures such as microservices, serverless platforms, and the shell. Before Brown, I worked with Vasiliki Kalavri and John Liagouris as part of CASP Lab at Boston University. I received my undergraduate degree from The Chinese University of Hong Kong, Shenzhen. I was also a Production Engineer intern in the Kernel Team at Meta.

Publications

* Equal contribution.
[OSDI'26]
Incr: Faster Re-execution via Bolt-on Incrementalization
Yizheng Xie*, Evangelos Lamprou*, Jerry Xia*, Nikos Vasilakis
20th USENIX Symposium on Operating Systems Design and Implementation
[PDF]
[NSDI'26]
Slowpoke: End-to-end Throughput Optimization Modeling for Microservice Applications
Yizheng Xie, Di Jin, Oğuzhan Çölkesen, Vasiliki Kalavri, John Liagouris, Nikos Vasilakis
23rd USENIX Symposium on Networked Systems Design and Implementation
[PDF] [Code]
[NSDI'26]
Fractal: Fault-Tolerant Shell-Script Distribution
Zhicheng Huang*, Ramiz Dundar*, Yizheng Xie, Konstantinos Kallas, Nikos Vasilakis
23rd USENIX Symposium on Networked Systems Design and Implementation
[PDF] [Code]
[PLOS'25]
Towards Hybrid Cooperative-Preemptive Scheduling
Yizheng Xie, Di Jin, Nikos Vasilakis
13th Workshop on Programming Languages and Operating Systems
[ACM] [PDF] [slides]

Teaching

  • Brown CSCI1380 Distributed Systems (TA, 23'Spring, 24'Spring)
  • Brown CSCI2952R Systems Seminar (TA, 24'Fall)