UBI File System
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"Here is a new flash file system developed by Nokia engineers with help from the University of Szeged. The new file-system is called UBIFS, which stands for UBI file system. UBI is the wear-leveling/ bad-block handling/volume management layer which is already in mainline (see drivers/mtd/ubi)," began Artem Bityutskiy. He explained that UBIFS is stable and "very close to being production ready", aiming to offer improved performance and scalability compared to JFFS2 by implementing write-back caching, and storing a file-system index rather than rebuilding it each time the media is mounted. The write-back cache implementation claims to offer around a 100 time improvement in write performance over JFFS2.
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