Messages in this thread | | | Date | Wed, 7 Jan 1998 00:21:00 +0100 | From | ralf@uni-kobl ... | Subject | Re: lack of raw disk devices |
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On Tue, Jan 06, 1998 at 02:57:23PM -0500, Adam D. Bradley wrote:
> > Therefore we can't seriously suggest obsoleting raw-device > > access as long as we can't provide efficient means for > > continguous file allocation and access with minimum meta-data > > slowdown. Hmm.. I will think about this... > > You may want to try to dig up an old POSIX.4 draft, and read the stuff > about "real-time files"... they got cut from the standard, but > provided this kind of functionality. (Gallmeister talks about them a > little in his book on POSIX.4)
IRIX XFS volumes can contain a realtime part with guaranteed rate i/o. I'm not aware of any other implementations of realtime i/o on files.
Ralf
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