Path: utzoo!mnetor!uunet!cme-durer!libes
From: libes@cme-durer.ARPA (Don Libes)
Newsgroups: comp.unix.wizards
Subject: Re: Shared Memory in BSD4.3 is lacking?
Message-ID: <241@muffin.cme-durer.ARPA>
Date: 24 Feb 88 19:54:10 GMT
References: <9100@ism780c.UUCP> <2329@umd5.umd.edu>
Reply-To: libes@muffin (Don Libes)
Organization: National Bureau of Standards, Gaithersburg, MD
Lines: 20

In article <2329@umd5.umd.edu> chris@trantor.umd.edu (Chris Torek) writes:
>In article <9100@ism780c.UUCP> mikep@ism780c.UUCP (Michael A. Petonic) writes:
>>Now, don't get me wrong.  I like Berzerkeley and all, but JEEZ!  No
>>shared memory?
>                               You could write a special device
>driver that cheats, and acts like System V shared memory....

A couple of years ago, I wrote a shared memory server for 4.2BSD.
It is all user-level code, and has the advantage of extending the
paradigm to multiple machines.  I assume it will run on 4.3BSD
although I haven't tried to do so.

We still use it here, so it's been pretty well banged on and
debugged.  People like it because it's easy to use, although it is
obviously slower than real common memory.

It was written up in the Summer 1985 Usenix Proceedings.  If anyone
is interested I can make it ftp accessable or post it to the net.

Don Libes          cme-durer.arpa      ...!uunet!cme-durer!libes