Xu Liu is an assistant professor in the Department of Computer Science at College of William and Mary. He obtained his Ph.D. from Rice University in 2014 and joined William and Mary in the same year. Prof. Liu works on performance evaluation. He has created and enhanced several open-source profiling tools, which are used at universities world-wide, DOE national laboratories, and in industry. Prof. Liu has published a number of papers in high-quality venues. His papers received Best Paper Award at SC'15, Best Paper Award at PPoPP'18, ASPLOS'17 Highlights, and 2017 HiPEAC Paper Award.