shmat() & shmdt() questions.
Conor P. Cahill
cpcahil at virtech.uucp
Sun Sep 23 07:55:35 AEST 1990
In article <1990Sep22.163631.23688 at NCoast.ORG> allbery at 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
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