Messages in this thread |  | | | Date | Sun, 10 Jun 2007 05:06:42 +0100 | | From | Al Viro <> | | Subject | Re: [patch 7/8] fdmap v2 - implement sys_socket2 |
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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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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