Terrence Xu enhanced the intel/lkvs repository by developing architecture-specific test coverage for performance monitoring units, focusing on the ARCH PEBS PMU. He designed and implemented seven automated test cases in Shell, targeting CPUID validation, general-purpose and XMM register groups, and various counter configurations. His approach emphasized system programming and performance monitoring, using architecture-aware test design to ensure comprehensive validation. By expanding test coverage and integrating register-level checks, Terrence improved the reliability and qualification readiness of performance monitoring features. The work demonstrated depth in testing and validation, addressing the need for robust, automated verification on the target architecture within the project.