Worked on enhancing observability for the alibaba/ROLL repository by addressing a critical gap in the qwen2.5-vl-7B-rlvr script’s metrics logging. Focused on Python-based debugging and performance monitoring, the developer implemented timers for key operations such as tps, actor_infer, actor_infer_response, and actor_train within the metrics manager. This targeted bug fix enabled accurate tracking of system throughput and actor lifecycle stages, improving the ability to analyze script performance and troubleshoot issues efficiently. The improvements support data-driven capacity planning and SLA tracking, reflecting a methodical approach to logging and monitoring in a production Python environment over a focused month.