On Sat, Jun 09, 2007 at 09:03:23PM -0700, Linus Torvalds wrote:
>
>
> 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.
Umm... Yes, but that depends on the time when that sucker is started and
the lifetime. IOW, we really need specific examples.
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