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From: rickert@mp.cs.niu.edu (Neil Rickert)
Newsgroups: comp.unix.internals
Subject: Re: Shared libraries are not necessary
Keywords: ISC i386 shared libraries
Message-ID: <1991May16.132612.19907@mp.cs.niu.edu>
Date: 16 May 91 13:26:12 GMT
References: <184@titccy.cc.titech.ac.jp> <1991May16.002617.15386@ladc.bull.com> <196@titccy.cc.titech.ac.jp>
Organization: Northern Illinois University
Lines: 22

In article <196@titccy.cc.titech.ac.jp> mohta@necom830.cc.titech.ac.jp (Masataka Ohta) writes:
>I say, in a good world, shared libraries shouldn't exist.
>
>	1) its space saving is negligible
>
>	2) shared libraries dose not help software version up
>	   from /etc/hosts to DNS
>
>So, why you think shared libraries should exist?

  If shared libraries are properly designed, a common set of code in memory
is shared by all uses of the shared library.  For library routines in use
concurrently by only one or two modules, this is no big deal.  But anything
used by many modules can result in reduced memory requirements for each, and
in particular, in reduced virtual storage paging activity.  If appropriately
used, the reduced paging can be adequate justification.

-- 
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  Neil W. Rickert, Computer Science               <rickert@cs.niu.edu>
  Northern Illinois Univ.
  DeKalb, IL 60115                                   +1-815-753-6940