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    • 2. 发明申请
    • MICRO-JOURNALING FOR FILE SYSTEM BASED ON NON-VOLATILE MEMORY
    • 基于非易失性存储器的文件系统的微型化
    • US20150193464A1
    • 2015-07-09
    • US14466928
    • 2014-08-22
    • Oh-seong KwonHwan-soo HanSun-young LimSung-tae Ryu
    • Oh-seong KwonHwan-soo HanSun-young LimSung-tae Ryu
    • G06F17/30G06F12/10G06F12/08
    • G06F16/1815
    • Provided is a micro-journaling for a file system based on a non-volatile memory. A system includes a central processing unit (CPU), a main memory realized in a non-volatile memory, and a storage device. The file system resides in the non-volatile main memory, and micro-journaling is performed. The micro-journaling includes a commit operation for flushing data of a CPU cache to a user space, and a checkpoint operation performed per page unit while a file write operation is performed through a system call. Since the non-volatile main memory is capable of permanently storing data, a data double duplication process for reliability of the file system may be removed, and the file system is recovered from a sudden power-off of the system by using the micro-journaling for recording logging information while the file write operation is performed and checking a point.
    • 提供了一种基于非易失性存储器的文件系统的微日志记录。 系统包括中央处理单元(CPU),在非易失性存储器中实现的主存储器和存储设备。 文件系统驻留在非易失性主存储器中,并执行微日志记录。 微日志包括用于将CPU缓存的数据刷新到用户空间的提交操作,以及在通过系统调用执行文件写入操作时每页单元执行的检查点操作。 由于非易失性主存储器能够永久地存储数据,因此可以去除用于文件系统的可靠性的数据双重复制过程,并且通过使用微日志来从系统的突然断电恢复文件系统 用于在执行文件写入操作并检查点时记录记录信息。