Pengfei Su

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Assistant Professor
Department of Computer Science and Engineering
University of California, Merced
Office: SE2 276, 5200 N. Lake Road, Merced, CA 95343
Email: psu9 [@] ucmerced [DOT] edu
Curriculum Vitae


I received a Ph.D. degree from William & Mary in 2020, under the supervision of Dr. Xu Liu, an M.S. degree from Institute of Computing Technology, Chinese Academy of Sciences in 2016, and a B.E. degree from Yunnan University in 2013. My research interests broadly lie in programming languages, program analysis, high-performance/parallel computing as well as software engineering, with an emphasis in providing tools support for analyzing and optimizing software inefficiencies.

Multiple openings are available for self-motivated M.S. and Ph.D. students. Feel free to ping me with your resume, transcript, and anything else that could be a plus for your application!


Research Interests

  • Programming Languages

  • Static and Dynamic Program Analysis

  • High-performance/Parallel Computing

  • Software Engineering


  • [arXiv'21] "DJXPerf: Identifying Memory Inefficiencies via Object-centric Profiling for Java", Bolun Li, Pengfei Su, Milind Chabbi, Shuyin Jiao, Xu Liu. [Paper]

  • [SC'19] "Pinpointing Performance Inefficiencies via Lightweight Variance Profiling", Pengfei Su, Shuyin Jiao, Milind Chabbi, Xu Liu, The International Conference for High Performance Computing, Networking, Storage and Analysis, Nov 17-22, 2019, Denver, CO, USA. [Paper] [Slides]

  • [ESEC/FSE'19] "Pinpointing Performance Inefficiencies in Java", Pengfei Su, Qingsen Wang, Milind Chabbi, Xu Liu, The 27th ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering, Aug 26-30, 2019, Tallinn, Estonia. [Paper] [Slides]

  • [ICSE'19] "Redundant Loads: A Software Inefficiency Indicator", Pengfei Su, Shasha Wen, Hailong Yang, Milind Chabbi, Xu Liu, The 41st IEEE/ACM International Conference on Software Engineering, May 25-Jun 1, 2019, Montreal, Canada. [Paper] [Slides] ACM SIGSOFT Distinguished Paper Award

  • [PPoPP'19] "Lightweight Hardware Transactional Memory Profiling", Qingsen Wang, Pengfei Su, Milind Chabbi, Xu Liu, The 24th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, Feb 16-20, 2019, Washington, D.C.. [Paper] [Slides] Best Paper Award

Professional Services

  • Program Committee: HIPS'21, LCTES'21

  • Artifact Evaluation Committee: ASPLOS'20, CGO'18&19&20, PPoPP'18&19&21

  • Conference Sub-reviewer: CGO'20, HPCA'20, BIGCOM'19, ICPP'17&19&20

  • Conference Volunteer: ASPLOS'18

Industry Experience

  • Software Engineering Intern @Uber Technologies, Inc. (May - Aug 2019)

  • Research Engineer @Facebook, Inc. (May - Nov 2020)

Honors and Awards

  • Stephen K.Park Graduate Research Award

  • SIGSOFT Travel Grant for ESEC/FSE'19

  • Distinguished Paper Award of ICSE'19

  • Best Paper Award of PPoPP'19

  • SIGPLAN Travel Grant for PPoPP'19

  • NSF Travel Grant for PPoPP'19


  • CSE165 Introduction to Object-orientated Programming: Fall 2021