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FIOPS: A New Linux I/O Scheduler For Flash/SSDs

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  • #16
    Originally posted by damg View Post
    I've always wondered if it would make sense to use SSDs as a new layer in the cache hierarchy rather than as an additional faster drive? e.g. hard disk -> SSD -> memory -> L3/L2/L1 caches -> registers.
    Like a Seagate Momentum XT on steroids? That one uses the cache only for reading, so no fear of burning through all write cycles in a month, but you obviously lose speed advantages writing. And you get some acceleration for everything, but you can never be sure that something doesn't get evicted, while using a ssd as system drive will always benefit the data on it (and obviously do nothing for everything else).

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