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    SubjectRe: [RFC] speeding up the stat() family of system calls...

    Linus> Here's both x86 people and filesystem people involved, because this
    Linus> hacky RFC patch touches both.

    Linus> NOTE NOTE NOTE! I've modified "cp_new_stat()" in place, in a way that
    Linus> is x86-64 specific. So the attached patch *only* works on x86-64, and
    Linus> will very actively break on anything else. That's intentional, because
    Linus> that way it's more obvious how the code changes, but a real patch
    Linus> would create a *new* cp_new_stat() for x86-64, and conditionalize the
    Linus> existing generic "cp_new_stat()" on not already having an
    Linus> architecture-optimized one.

    As a SysAdmin, I'm always interested in any speedups to filesystem
    ops, since I tend to do lots of trawling through filesystems with find
    looking for data on filesystem usage, largest files, etc. So this is
    good news. Any numbers of how much better this is? I'm travelling
    tomorrow, so I won't have time to spin up a VM and play, though it's
    tempting to do so.

    Thanks,
    John


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