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Article View: comp.sys.amiga.tech
Article #1307

Re: PowerPacker 2.2a

#1307
From: Eric J. Kennedy
Date: Sun, 17 Sep 1989 04:25
23 lines
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In article <89258.121835UH2@PSUVM.BITNET> UH2@PSUVM.BITNET (Lee Sailer) writes:
>Will packed files be less likely to load if memory is fragmented?  That is,
>does PP work by loading one big hunk, and then unpacking it into the
>original lots of little hunks?  Or what?

I suspect that packed files will require more memory to load, since
the entire file is loaded into ram and unpacked there.  Judging from the
speed of loading, the program is compressed into one large hunk, but I
don't know that for sure.

What I *do* know is that some very large files (Spice and Superplan, at
440kb and 410kb) have trouble loading when I don't have *lots* of free
memory available, if they're packed.  Particularly spice, since that
massive 440kb program is all one huge hunk anyway.  So to load spice,
I've got to have a 140kb block free (for the compressed version), and a
440kb block free (for the uncompressed vesion).  When I didn't have
enough for those two blocks, it crashed most ungracefully during the
unpacking operation.  Now I use uncompressed versions of spice and
superplan.  Too bad, because that's about 500kb less disk space.

-- 
Eric Kennedy
ejkst@cis.unix.pitt.edu
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From: ejkst@unix.cis.pitt.edu (Eric J. Kennedy)
Newsgroups: comp.sys.amiga.tech
Subject: Re: PowerPacker 2.2a
Message-ID: <19600@unix.cis.pitt.edu>
Date: 17 Sep 89 04:25:08 GMT
References: <89258.121835UH2@PSUVM.BITNET>
Reply-To: ejkst@unix.cis.pitt.edu (Eric J. Kennedy)
Organization: Univ. of Pittsburgh, Comp & Info Services
Lines: 23