Lyu Jun. He is currently a third-year Ph.D. student in the DevOps+ Research Laboratory (https://softeng.nju.edu.cn/), supervised by Prof. He (Jason) Zhang (https://softeng.nju.edu.cn/faculty/HeZhang/index.html), at Nanjing University, China. He research interests focus on improving software build efficiency and quality in practice, and reducing CI computing costs.