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From: schorr@ead.dsa.com (Andrew J. Schorr)
Newsgroups: comp.unix.aix
Subject: maximum of 10 concurrent memory mapped files
Message-ID: <1990Sep21.185156@ead.dsa.com>
Date: 21 Sep 90 22:51:56 GMT
Sender: news@ead.dsa.com
Reply-To: schorr@ead.dsa.com (Andrew J. Schorr)
Organization: Daiwa Securities America, New York
Lines: 12

I have verified this limitation, and it seems like a pretty
serious one to me.  It would seem
that there are at least 2 ways to solve this problem: 1. don't
require a segment register for memory mapping a file; 2. find some
way of swapping segments in and out of the registers (i.e. virtual
segments).  Frankly, I just don't see why an entire segment must be
devoted to a single memory mapping; I'm sure this is an implementation
issue, but I think this ought to be corrected.  Perhaps I'm alone in
feeling this way, but to me, memory mapping is an important tool for
improving performance.

-Andy