*BSD News Article 45683


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From: rwatson@clark.net (Robert Watson)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Post of praise for 2.0.5R: efficiency and min platform
Date: 20 Jun 1995 03:08:22 GMT
Organization: The Star-Lit BBS, Bethesda, Maryland, USA
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Just thought a quick note of praise was appropriate.  The hardware 
minimum platforms in the install guide/relnotes really are about right 
;).  I like to prove things can be done, and I'd like to report that 
FreeBSD runs well under 4 megs of ram on a 386sx20 ;).  I'd also like to 
report that so does XWindows on an et3000 video card on the same system 
;).  Admittadly I'm not running most of my applications on the local 
system -- mostly remotely with my system as the display, but it *does* 
work ;).For anyone intersted, there are a number of ways to get this to 
work ;).  The key thing is to free up a lot of memory so things don't 
have to swap a lot.  The most effective way I've found of doing this is 
to a) be in single user mode without most daemons running and b) prevent 
the server from reloading/etc if at all possible.  Also use efficient 
window managers, etc.  I run xdm from single user mode to bring up the 
server, then log in using olwm, and two-three xterms.  I have an 800x600 
desktop in a 640x480 viewport (my monior can't quite make 800x600 under 
Xfree86 -- can under windows, but apparently that's not quite the same 
;).  Admittadly the swapping is there occasionally, and certainly more 
than under 4 more megs of ram, but it does work effectively enough that I 
use my 386sx20 w/4megs of ram as an xterm hooked up to another system.  

To me this is pretty incredible ;).  Many thanks to the whole FreeBSD 
development team..  The isntallation was a little rough watered (problems 
with lack of memory and processies being killed before swap was enabled 
(like the boot sector writing processesss under sysinstall ;)), it's 
running great now.  Thanks!

--
Robert Watson   rwatson@sidwell.edu   http://www.sidwell.edu/~rwatson/
The goal of science is to build better mousetraps.  The goal of nature
is to build better mice.