Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!ginosko!uunet!mcsun!ukc!edcastle!aiai!jeff
From: jeff@aiai.uucp (Jeff Dalton)
Newsgroups: comp.lang.lisp
Subject: Re: Incremental worlds, on conventional processors
Keywords: layered saved images, disk space, Poplog, Harlequin, Lucid, Franz
Message-ID: <937@skye.ed.ac.uk>
Date: 25 Sep 89 16:11:18 GMT
References: <3391@cbnewsc.ATT.COM> <924@skye.ed.ac.uk> <30019@news.Think.COM>
Sender: news@aiai.ed.ac.uk
Reply-To: jeff@aiai.uucp (Jeff Dalton)
Organization: AIAI, University of Edinburgh, Scotland
Lines: 20

In article <30019@news.Think.COM> barmar@kulla.UUCP (Barry Margolin) writes:
>In article <924@skye.ed.ac.uk> jeff@aiai.uucp (Jeff Dalton) writes:
>>That is, instead of setting up a state and then saving the world, I
>>write a file that sets up the state, compile it, and load it in
>>when needed.

>This sounds like you're arguing against saved worlds in general, not
>just incremental worlds.

Sorry.  I didn't intend to argue against either, just to point out
that loading compiled files was sometimes a reasonable alternative.
Then, because Poplog can't compile files, it's more important that
it provide incremental worlds.  I would not consider saved worlds
of any sort a point against any Lisp that provided them.

>I don't know of any professional-quality Lisps that don't provide
>saved worlds.

Neither do I.  Moreover, I wish more of them provided incremental
worlds so that the resulting files would be smaller.