Networked Systems
Almost all computational infrastructures used to deliver services involve networked systems, and our research agenda spans a wide range of layers, contexts, methodologies, and approaches. We are particularly fond of overturning conventional wisdom. This group at ICSI is a close collaborative partner of the Networked Systems Lab (NetSys) at UC Berkeley, and we make no distinction between the efforts of the two groups.
Our research has examined:
- Internet architectures
- Large-scale distributed systems
- Data center designs
- Cellular telephony
- Performance verification tools
Selected recent publications (see all publications):
- Alexander Krentsel, Rishabh Iyer, Isaac Keslassy, Bharath Modhipalli, Sylvia Ratnasamy, Anees Shaikh, Rob Shakir. CrossCheck: Input Validation for WAN Control Systems. CoRR abs/2603.05792, 2026.
- Tyler Griggs, Soujanya Ponnapalli, Dev Bali, Wenjie Ma, James DeLoye, Audrey Cheng, Jaewan Hong, Natacha Crooks, Scott Shenker, Ion Stoica, Matei Zaharia. Delta Fair Sharing: Performance Isolation for Multi-Tenant Storage Systems. CoRR abs/2601.20030, 2026.
- Ziming Mao, Yihan Zhang, Chihan Cui, Kaichao You, Zhongjie Chen, Zhiying Xu, Scott Shenker, Costin Raiciu, Yang Zhou, Ion Stoica. UCCL-EP: Portable Expert-Parallel Communication. CoRR abs/2512.19849, 2025.
- Alexander Krentsel, Oliver Ye, Anthony Tafoya, Xuqian Ma, Sylvia Ratnasamy, Anees Shaikh. Towards Accessible Model-Free Verification. HotNets 2025.
- Zhihong Luo, Sam Son, Dev Bali, Emmanuel Amaro, Amy Ousterhout, Sylvia Ratnasamy, Scott Shenker. Efficient Microsecond-scale Blind Scheduling with Tiny Quanta. ASPLOS (2) 305-319, 2024.
- Zhihong Luo, Sam Son, Sylvia Ratnasamy, Scott Shenker. Harvesting Memory-bound CPU Stall Cycles in Software with MSH. OSDI 57-75, 2024.
