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Path: utzoo!mnetor!seismo!ut-sally!utah-cs!utah-gr!stride!bruce
From: bruce@stride.Stride.COM (Bruce Robertson)
Newsgroups: comp.lang.lisp
Subject: Re: autoload (was: Re: Against the Tide of Common LISP)
Message-ID: <652@stride.Stride.COM>
Date: Sun, 8-Mar-87 01:45:23 EST
Article-I.D.: stride.652
Posted: Sun Mar  8 01:45:23 1987
Date-Received: Mon, 9-Mar-87 03:37:41 EST
References: <257@su-russell.ARPA>
Reply-To: bruce@stride.Stride.COM.UUCP (Bruce Robertson)
Organization: Stride Micro, Reno, NV
Lines: 19

In article <257@su-russell.ARPA> wade@su-russell.ARPA (Wade Hennessey) writes:
>I also wish that Unix had features like copy-on-write and demand-zero
>pages.

Much as I dislike System V, the virtual memory system provided by AT&T
does not require you to have enough swap space to contain the process
no matter how big it might get, and it does have copy-on-write and
demand-zero pages.  Because of copy-on-write, data pages are stored in
the page cache as well as text pages, resulting in commonly used
programs starting up much more quickly.

In fact, we are using the System V virtual memory implementation in
the 4.3bsd port that we are working on, rather than Berkeley's
implementation.
-- 

	Bruce Robertson
	bruce@stride.Stride.COM
	cbosgd!utah-cs!utah-gr!stride!brucad