Precise GPU observability and programmability are essential for optimizing performance in AI workloads and other computationally intensive high-performance computing (HPC) applications. In this paper, we introduce eGPU, the first framework and eBPF runtime that dynamically offloads eBPF bytecode onto GPUs via dynamic PTX injection. Designed primarily for observability, our system leverages real-time GPU telemetry, eBPF-based dynamic instrumentation, and automated performance analysis to pinpoint...