Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!husc6!purdue!umd5!mimsy!chris
From: chris@mimsy.UUCP (Chris Torek)
Newsgroups: comp.arch
Subject: Re: VM needed for rapid startup
Keywords: paging virtual-memory speed
Message-ID: <11716@mimsy.UUCP>
Date: 29 May 88 17:48:35 GMT
References: <463@cvaxa.sussex.ac.uk> <19322@beta.UUCP> <495@micropen>
Organization: U of Maryland, Dept. of Computer Science, Coll. Pk., MD 20742
Lines: 11

In article <495@micropen> dave@micropen (David F. Carlson) writes:
>I seem to remember that in BSD 4.1 on the VAX that a process was demand paged
>but in order to initialize the paging system the whole process needed to be
>loaded into core.

No; the whole process is (and has been) loaded initially only for NMAGIC
executables.  The linker defaults to ZMAGIC (demand-paged-in).  4.1BSD
did compile /usr/ucb/Mail with -n (NMAGIC).
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain:	chris@mimsy.umd.edu	Path:	uunet!mimsy!chris