"In your experience, what are the most critical aspects of writing and maintaining device drivers for high-throughput devices? How do you ensure that the driver is both efficient and minimizes CPU load, particularly in data-intensive applications?"
High-throughput devices such as graphics driver have their own processing units called graphic processing unit (GPU) for managing direct memory access between low level hardware memories ( display interface ) and applications using data for display.
Decomposition of driver modules is key to scalability and high performance of device drivers.
Various functionalities are implemented in different sub-modules for robustness and scalability.