About Me
I’m currently a final year Master student in the School of Computer Science Technology, Fudan University, advised by Prof. Jin Zhao. I obtained my B.Eng. degree from Northeastern University in 2019.
Research Interests
My research interests lie in computer networking and systems. Below are the major projects I participated in.
- Deep Packet Inspection (DPI) Accelerating. As an intern in Intel from Feb. 2022 to Dec. 2023, I’m a developer of Hyperscan, the fastest regular expression matching engine running on modern CPUs. I would convert the processes of multi-string matching and DFA transformation, critical stages of Hyperscan’s workflow, into bitwise operations and take advantage of SIMD to accelerate them. Hyperscan has been integrated into famous DPI applications such as Snort and Suricata. It dramatically increases their real-time packet processing capability. Relevant works have been published in NSDI, ICPP, and INFOCOM.
- IPU Feature Development. As an intern in Intel, I also work on developing new features for IPU based on the specific requirements of Google Cloud. This involves the offloading of fundamental infrastructure‑related tasks from CPU to IPU.
- SDN. I used to work in Sangfor Virtual Network Department for a year, where I worked with a seven-person team to develop the control plane of an SDN system.
- P4 Gateway Testbed. I worked in Bytedance as an intern from May 2021 to Aug. 2021, supervised by Chuanxiong Guo. I built a testbed to test the functionality and performance of P4 gateway. The testbed utilizes a single server to simulate multiple network topologies(e.g. gateway connecting with switches, gateway connecting with servers, gateway connecting with both switches and servers).
News
- 01/2024. One paper is accepted by TNSM.
- 12/2023. Win HuaTai Securities Technology Fellowship.
- 12/2022. Be selected as Intel 2022 Excellent Intern.
- 12/2022. One paper is accepted by INFOCOM 2023.
- 10/2022. Win Intel 2022 Fellowship.
- 12/2021. Be interviewed by the official media outlet “Fudan Graduate Students”. Interview Piece
- 04/2021. Be accepted by School of Computer Science, Fudan University.
Publications
- Hao Xu, Harry Chang, Wenjun Zhu, Yang Hong, Geoff Langdale, Kun Qiu, Jin Zhao, “Harry: A Scalable SIMD‑based Multi‑literal Pattern Matching Engine for Deep Packet Inspection”. In IEEE International Conference on Computer Communications (INFOCOM’23). Acceptance Rate: 252/1312=19%.
- Hao Xu, Harry Chang, Kun Qiu, Yang Hong, Wenjun Zhu, Xiang Wang, Baoqian Li, Jin Zhao, “Accelerating Deep Packet Inspection with SIMD-based Multi-literal Matching Engine”. In IEEE Transactions on Network and Service Management (TNSM).
- Hao Xu, Zhiyong Zhang, Jun Zhao, Kun Qiu, Yang Hong, Wenjun Zhu, Geoff Langdale, Jin Zhao, “Optimizing the Data and Instruction‑Level Parallelism of SIMD‑based Multi‑literal Pattern Matching Algorithm”. In IEEE Transactions on Parallel and Distrubuted Systems (TPDS). [Under Review]
Educations
- 09/2021 - Now. M.Eng. at School of Computer Science, Fudan University.
- 09/2015 - 07/2019. B.Eng. at School of Computer Science and Technology, Northeastern University.
Industrial Experience
- 02/2022 - 12/2023 Intern, Intel Network Platforms Group.
- 05/2021 - 08/2021 Intern, Bytedance Infrastructure Department.
- 07/2019 - 08/2020 Software Engineer, Sangfor Virtual Network Department.
Achievements
- 12/2023 Win HuaTai Securities Technology Fellowship.
- 12/2022 Win 2022 Intel Excellent Intern.
- 09/2022 Win 2022 Intel Fellowship.
- 04/2021 Rank top 1% in the graduate entrance examination towards Fudan CS.
- 09/2017 First Class Scholarship of Northeastern University.
- 09/2016 National Encouragement Scholarship.
- 09/2016 First Class Scholarship of Northeastern University.