Worked on the sgl-project/sglang repository to implement a caching optimization for the mrope_position_delta function, targeting improved performance in forward batch processing. The approach focused on reducing redundant calculations, which led to increased throughput and lower CPU usage during batch inference. By modularizing the cache and introducing targeted tests, the work established a clearer caching strategy and laid the groundwork for future enhancements. The project involved extensive use of Python and leveraged skills in data processing, machine learning, and performance optimization. No major bugs were addressed during this period, with efforts concentrated on feature development and codebase maintainability.