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    SubjectRe: [PATCH] barrier patch set
    On Wednesday 31 of March 2004 00:21, Jeff Garzik wrote:
    > Stephen C. Tweedie wrote:
    > > Yep. It scares me to think what performance characteristics we'll start
    > > seeing once that gets used everywhere it's needed, though. If every raw
    > > or O_DIRECT write needs a flush after it, databases are going to become
    > > very sensitive to flush performance. I guess disabling the flushing and
    > > using disks which tell the truth about data hitting the platter is the
    > > sane answer there.
    > For IDE, O_DIRECT and O_SYNC can use special "FUA" commands, which don't
    > return until the data is on the platter.

    Do you know of any drive supporting it? I don't.


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