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Re: sparc v. dec 5k
> What kind of 5000 is lisp-pmax2? We were going to get '120s, but DEC is
> announcing a new machine next Tuesday, and are discontinuing that line.
> By "feel", your gut feeling when you're on the console hacking (lisp, maybe
> reading mail/news) -- does it really seem fast? My sparc seems slogging
> generally, but I probably run too many things on it (`ps ax | wc -l` = 62).
> If slow, does it seem fine as a server?
I never sit at the console of the decstations. I hate the keyboard.
I'd rather use an RT. Well, maybe it's not that bad. If I had the
option, I would run X on the RT and telnet to the decstation. In
fact, I almost never run anything serious on the same machine I'm
sitting at. But if I had to guess how our machines perform as servers
for big compile jobs, I would rate them:
1.0 lisp-pmax2 DECstation 5000/200, running MACH
0.85 lisp-sun1 SPARCstation 1+, running SunOS w/ Seagate drive
0.4 ardath SPARCstation 1+, running MACH w/ Hitachi drive
[They all have 24 meg of physical memory.] I haven't done any
side-by-sides involving lisp-pmax1 (our 3100), so I can't really rank
it. But it would probably be somewhere between ardath and lisp-sun1.
ps: lisp-pmax2 didn't work worth shit until Gripe fixed the +5 on the
power supply to actually deliver +5. It kept hanging under heavy disk
load. If you are buying a bunch of machines, you probably want to
factor reliability in. My impression is that Sun is a lot closers to
having their act together than DEC, but I don't have any real data to
back that up.
pps: You could always look into some of MIPS' stuff. If you want to
run CMUCL, a port to RISCos (MIPS' unix varient) would be a lot easier
than an Ultrix port. I have a friend who works for MIPS, so I figured
I should at least mention their existance :-). If you want to contact
him, send mail to firstname.lastname@example.org.