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    SubjectRe: [patch 7/8] fdmap v2 - implement sys_socket2


    On Sun, 10 Jun 2007, Al Viro wrote:

    > On Sat, Jun 09, 2007 at 08:48:39PM -0700, Linus Torvalds wrote:
    > > Agreed. That was actually part of the reason why I thought clone() was
    > > much better than the pthreads interface.
    > >
    > > That said, the Linux !CLONE_FILES does have downsides:
    > >
    > > - it is potentially much slower to do than sharing everything (if you
    > > have lots of file descriptors, incrementing the refcounts etc is
    > > actually a real overhead)
    >
    > Huh? We _skip_ the overhead when descriptor table is not shared.

    Not for clone()/exit(), ie the actual _creation_ of the thread.

    Linus
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