Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!virtech!cpcahil
From: cpcahil@virtech.uucp (Conor P. Cahill)
Newsgroups: comp.unix.internals
Subject: Re: shmat() & shmdt() questions.
Message-ID: <1990Sep22.215535.16776@virtech.uucp>
Date: 22 Sep 90 21:55:35 GMT
References: <13782@hydra.gatech.EDU> <13783@hydra.gatech.EDU> <583@dptechno.UUCP> <1990Sep22.163631.23688@NCoast.ORG>
Reply-To: cpcahil@virtech.UUCP (Conor P. Cahill)
Organization: Virtual Technologies Inc., Sterling VA
Lines: 17

In article <1990Sep22.163631.23688@NCoast.ORG> allbery@ncoast.ORG (Brandon S. Allbery KB8JRR/KT) writes:
>Yes, this is a change of tune for me.  But I was hoping that AT&T would
>eventually integrate the two namespaces into a single one.  From the
>UNIX/WORLD description, it looks like they have... research, at least.  (See
>the article on Plan 9.)  I wonder how long before the commercial side picks up
>on that concept?

Actually they have.  System V.4 provides memory mapped files and with the
way virtual memory is managed, a memory mapped file that is being accessed
will attain about the same performance as shared memory, plus you use the
file system to access the file.


-- 
Conor P. Cahill            (703)430-9247        Virtual Technologies, Inc.,
uunet!virtech!cpcahil                           46030 Manekin Plaza, Suite 160
                                                Sterling, VA 22170