We research device centric high-performance system and software. The legacy OS is CPU centric system, which suffers from high overhead for I/O operations. In the result, the CPU-centric system cannot take advantage of high performance emerging I/O devices. The device-centric system solves this problem and achieves a highly scalable system which fully utilize emerging I/O devices. The device-centric high-performance software is aware of this high-performance system. We expect that our new device centric high-performance system can speed up many workloads including cloud and big data workloads.