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Comparing UBIFS And LogFS

Apr 02, 2008, 07:30 (0 Talkback[s])

"Following the recent announcement that UBIFS is nearly production ready, it was asked how UBIFS compares to LogFS. LogFS author Jörn Engel suggested, 'both share similar design goals. Biggest difference is that ubifs works on top of ubi and depends on ubi support, while logfs works on plain mtd (or block devices) and does everything itself. Code size difference is huge. Ubi weighs some 11kloc, ubifs some 30, logfs some 8.' He continued:

"'Ubi scales linearly, as it does a large scan at init time. It is still reasonably fast, as it reads just a few bytes worth of header per block...'"

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