Feng Ren

GitHub · Blog · RDMA 101

About

I'm Feng Ren (任峰), an independent researcher working on networking and storage systems for LLM serving. I have been a co-founder of Mooncake since 2024, and I am the author and a core maintainer of Mooncake Transfer Engine.

After leaving my research position, I permanently stepped away from the conventional academic career path. I continue to do research, but on an independent agenda centered on building systems for real-world problems.

Email: renfeng.chn AT outlook.com

Experience

Approaching AI Inc.

Technical Expert · AI Infrastructure

2026 – Present

9# AISoft, Beijing

Associate Researcher

2023 – 2026

Education

Tsinghua University

Ph.D. in Computer Science and Technology

2017 – 2023

Xidian University

B.Eng. in Computer Science and Technology

2013 – 2017

Selected Publications

TENT: A Declarative Slice Spraying Engine for Performant and Resilient Data Movement in Disaggregated LLM Serving

Feng Ren, Ruoyu Qin, Teng Ma, Shangming Cai, Zheng Liu, Chao Lei, Dejiang Zhu, Ke Yang, Zheming Li, Jialei Cui, Weixiao Huang, Yikai Zhao, Yineng Zhang, Hao Wu, Xiang Gao, Yuhao Fu, Jinlei Jiang, Yongwei Wu, Mingxing Zhang.

arXiv preprint arXiv:2604.00368, 2026

Mooncake: A KVCache-centric Disaggregated Architecture for LLM Serving

Ruoyu Qin, Zheming Li, Weiran He, Jialei Cui, Heyi Tang, Feng Ren, Teng Ma, Shangming Cai, Yineng Zhang, Mingxing Zhang, Yongwei Wu, Weimin Zheng, Xinran Xu.

ACM Transactions on Storage, 2025

Mooncake: Trading More Storage for Less Computation—a KVCache-centric Architecture for Serving LLM Chatbot

Ruoyu Qin, Zheming Li, Weiran He, Jialei Cui, Feng Ren, Mingxing Zhang, Yongwei Wu, Weimin Zheng, Xinran Xu.

23rd USENIX Conference on File and Storage Technologies (FAST '25), 2025

Scaling Up Memory Disaggregated Applications with Smart

Feng Ren, Mingxing Zhang, Kang Chen, Huaxia Xia, Zuoning Chen, Yongwei Wu.

Proceedings of the 29th ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS '24), 2024

libcrpm: Improving the Checkpoint Performance of NVM

Feng Ren, Kang Chen, Yongwei Wu.

Proceedings of the 59th ACM/IEEE Design Automation Conference (DAC '22), 2022