NVM local file management system and method based on SIMD instruction

The invention discloses an NVM (Non-Volatile Memory) local file management system and method based on an SIMD (Single Instruction Multiple Data) instruction, and the system comprises a directory data block index module based on linear Hash, which is used for obtaining a logic block number of a directory where a file is located; the global data block management module based on static hash is used for converting the logic block number into a physical block number to obtain a data block; and the directory in-block index module based on SIMD instruction optimization is used for carrying out in-block accelerated search in the data block by utilizing SIMD optimization. The method comprises the steps of file creation, file linking and file reading applied to the system. A new data block and directory management method is designed according to the read-write characteristics of the NVM equipment, and the file system performance is optimized and improved in combination with the SIMD instruction. The NVM local file mana