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    SubjectRe: [PATCH] LogFS take three
    On Thu, 17 May 2007 16:43:59 +0800, David Woodhouse wrote:
    > > As I mentioned, some techniques like log-structured filesystem could
    > > perform generally better on any kind of flash-based storage with FTL.
    > > Although there are many kinds of FTL, it is commonly true that
    > > it performs well under workload where sequential write is dominant.
    > Yes, it's certainly possible that we _could_ write a file system which
    > is specifically targeted at FTL -- I was just wondering why anyone would
    > _bother_ :)

    Haven't you done that already? JFFS2 write behaviour is the best-case
    scenario for any FTL. When the delta cache is finished, LogFS will be
    pretty close to that as well.

    Not sure if anyone would specifically target FTL. Being well-suited for
    those beasts is just a side-effect.

    The FTL is still a net loss. Without that FAT enabling layer a real
    flash filesystem would be more efficient.


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    -- Publilius Syrus
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