Disk Cache Working Mechanism Research GUO Chuan-peng,TANG Guang-ming,Sun Yi-Feng (Institute of Electronic Technology,the PLA Information Engineering University,Zhengzhou 450004,China) Abstract:Cache is one kind of technology of improving the performance of computer.The working principle of Cache and the system framework of memory are discussed. The emphasis is the mechanism that Cache Manager cooperates with other components in kernel. Key words:Cache cache manager VMM kernel