Roy Zhu focused on performance optimization in the intel/vpl-gpu-rt repository, delivering a feature that reduced mutex contention in the fast copy path. By unlocking the mutex before performing the copy operation and relocking it afterward, Roy enabled smoother coordination between decode and fast copy processes, which improved overall throughput. This work demonstrated his proficiency in C++ and deep understanding of concurrency control and profiling within GPU runtime pipelines. Although no major bugs were addressed during this period, Roy’s efforts centered on enhancing system efficiency, reflecting a targeted and thoughtful approach to performance engineering in a complex, multi-threaded environment.