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From: laser-lovers@uw-beaver
Newsgroups: fa.laser-lovers
Subject: dvi2ps and memory fill up
Message-ID: <1416@uw-beaver>
Date: Sun, 21-Jul-85 05:04:20 EDT
Article-I.D.: uw-beave.1416
Posted: Sun Jul 21 05:04:20 1985
Date-Received: Wed, 24-Jul-85 21:54:07 EDT
Sender: daemon@uw-beaver
Organization: U of Washington Computer Science
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From: Neal Holtz <holtz%cascade.carleton.cdn%ubc.csnet@csnet-relay.arpa>

Then I will also reply to the net:


==================
        Delivery-date: Friday, July 19, 1985 at 16:09 ADT
        From: Neal Holtz <holtz@cascade.carleton.cdn>
        To: Robert Morris <ram@umass-boston.csnet>
        In-Reply-To: dvi2ps:48
        Message-ID: dvi2ps:49
        Subject: Re:  dvi2ps Users?  - quick way to increase capacity (# of pages)
        
        Your analysis is substantially correct.  The context is that dvi2ps is a quick
        and dirty way to get TeX output on a LaserWriter -- it downloads all
        the TeX fonts and does not use any of the resident ones.  Horrible, I know,
        but pleasingly effective (3 pages/minute on long documents).
        
        The structure of the downloaded PS code for every page in the document is:
        
                -    start-of-page
                -    down load all new char bitmaps for that page
                -    save
                -    down load all typesetting instructions (strings, etc.)
                -    restore
        
        It does reclaim considerable VM after every page, but obviously not
        the bitmap downloading.  That has to be done outside the save/restores
        (I think), or else you have to download all chars every page (instead of
        each char only once)  -- that would be too expensive.
        
        So what happens is that VM eventually fills with downloaded chars and font
        dictionaries -- so that was why the suggestion of 'note' pagestyle.