国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

During the mode switching process in the satellite, the storage system cannot be accessed quickly due to the slow initialization. The design of high-speed system based on hierarchical cache adopts the hardware architecture of on-chip cache combined with small capacity non-volatile memory (MRAM), in which the file object header index and Nand Flash block metadata area index are stored to accelerate the start-up operation of the file system. The performance of system design is analyzed by data modeling and simulation experiments. The system design is implemented and the start-up algorithm is verified in the on-board storage module. The start-up process based on object index takes 3.12 ms, and the initialization based on block metadata area takes 143.47 ms. Compared with the traditional start-up operation which takes 170.35s, this system design accelerated by hierarchical caching has high reliability and greatly shortens the start-up time of storage system. The improvement of its performance provides a technical basis for the optimization of satellite on-orbit management and control.