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From: chris@umcp-cs.UUCP (Chris Torek)
Newsgroups: net.emacs
Subject: Re: Including the "-n" ld option on BSD 4.2
Message-ID: <4036@umcp-cs.UUCP>
Date: Tue, 28-Oct-86 16:22:13 EST
Article-I.D.: umcp-cs.4036
Posted: Tue Oct 28 16:22:13 1986
Date-Received: Tue, 28-Oct-86 23:26:05 EST
References: <3574@mit-eddie.MIT.EDU>
Reply-To: chris@umcp-cs.UUCP (Chris Torek)
Organization: University of Maryland, Dept. of Computer Sci.
Lines: 15

In article <3574@mit-eddie.MIT.EDU> ehrlich@psuvax1.bitnet writes:
>Is there a reason why temacs is not loaded with the "-n" flag on
>BSD 4.2 systems? It would seem to be a reasonable thing to do and
>the manual page does not indicate that "-n" is a default option.

Yes: it is not really all that reasonable.  The 4.2 ld default is
`-z': demand paged.  `-n' makes the text shared, but not demand
paged.  Instead, on startup, the entire text is copied in to memory.
If Emacs were to touch all its pages on startup, that would be
sensible, but both Gnu and locally-hacked-Unipress touch only about
half their pages.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7690)
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