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    SubjectRe: O_DIRECT question


    On Thu, 11 Jan 2007, Alan wrote:
    >
    > Well you can - its called SG_IO and that really does get the OS out of
    > the way. O_DIRECT gets crazy when you stop using it on devices directly
    > and use it on files

    Well, on a raw disk, O_DIRECT is fine too, but yeah, you might as well
    use SG_IO at that point. All of my issues are all about filesystems.

    And filesystems is where people use O_DIRECT most. Almost nobody puts
    their database on a partition of its own these days, afaik. Perhaps for
    benchmarking or some really high-end stuff. Not "normal users".

    Linus
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