Junru Shen focused on improving the reliability of throughput benchmarks in the jeejeelee/vllm repository by addressing a critical bug in dataset routing for the prefix_repetition feature. Using Python and leveraging skills in benchmarking and data processing, Junru aligned the routing logic with user-provided arguments to ensure the correct dataset was selected during performance evaluations. This targeted bug fix enhanced the accuracy and trustworthiness of benchmark results, directly supporting more dependable performance measurements. The work demonstrated careful attention to correctness and maintainability, contributing to the overall quality of the benchmarking infrastructure without introducing new features during the development period.