During March 2025, Jiankun Tang focused on backend development for the cubefs/cubefs repository, delivering a targeted performance optimization in Go. He introduced a ClearPacket method to reset and reuse the Packet struct within the serveConn network path, reducing memory allocations and improving throughput under load. This approach addressed memory management concerns by lowering the memory footprint during high-traffic scenarios. Jiankun supported the feature with comprehensive unit tests to validate ClearPacket’s behavior and ensure robust end-to-end reuse. His work demonstrated depth in performance optimization and testing, aligning with the repository’s goals for efficient resource utilization and maintainable backend code.