Bowen Zhang (张博文)

I am a third-year PhD student at Shanghai Jiao Tong University, advised by Prof. Hong Mei and Prof. Linpeng Huang. I received my bachelor’s degree with Zhiyuan honors from Shanghai Jiao Tong University in 2021.

Research

My research interests focus on designing storage systems (e.g., database systems, key-value stores, and file systems) for modern hardware (e.g., persistent memory, RDMA, CXL, SmartNIC) or architecture (e.g., resource disaggregation). My current projects including:

• Persistent Memory-based Systems. Emerging persistent memory provides many attractive features, such as byte addressability, DRAM-comparable performance, and data durability, which motivates us to redesign existing systems to fully harness the benefits of persistent memory.
  • NBTree (VLDB 22): A persistent B+Tree that employs a two-layer leaf node structure to minimize the number of PM accesses and a lock-free concurrency protocol to enhance scalability.
  • Spash (ICDE 24): A persistent hash index that combines the benefits of HTM and persistent CPU cache to minimize write amplification and maximize concurrency.
  • Calloc (TPDS 24): A persistent memory allocator that fully exploits the persistent CPU cache to absorb PM writes during memory management.
• Disaggregated Memory-based Systems. Disaggregated memory systems disseminate the compute and memory resources of monolithic servers into two independent network-attached pools, offering high resource utilization, enhanced architectural elasticity, and fine-grained failure domain. These advantages have motivated our exploration into optimizing current systems for this innovative architecture.

Publication

• Exploiting Persistent CPU Cache for Scalable Persistent Hash Index

  Bowen Zhang, Shengan Zheng, Liangxu Nie, Zhenlin Qi, Linpeng Huang, Hong Mei

  Published in IEEE International Conference on Data Engineering (ICDE), 2024

• Revisiting PM-based B+-Tree with Persistent CPU Cache

  Bowen Zhang, Shengan Zheng, Liangxu Nie, Zhenlin Qi, Hongyi Chen, Linpeng Huang, Hong Mei

  Published in IEEE Transactions on Parallel and Distributed Systems (TPDS), 2024

• NBTree: a Lock-free PM-friendly Persistent B+-Tree for eADR-enabled PM Systems

  Bowen Zhang, Shengan Zheng, Zhenlin Qi, Linpeng Huang

  Published in Proceedings of the VLDB Endowment (VLDB) , 2022

• Conflux: Exploiting Persistent Memory and RDMA Bandwidth via Adaptive I/O Mode Selection

  Zhenlin Qi, Shengan Zheng, Yifeng Hui, Bowen Zhang, Linpeng Huang

  Published in International Conference on Parallel Processing (ICPP) , 2023

• Heart: A Scalable, High-performance ART for Persistent Memory

  Liangxu Nie, Shengan Zheng, Bowen Zhang, Jinyan Xu, Linpeng Huang

  Published in IEEE International Conference on Computer Design (ICCD) , 2023