Subject: Re: Performance of VAX/780/750, Pyramid & Sun
From: er…@milo.uucp
To: net.works
Date: Aug 11, 1984, 5:49:02 PM

I must beg to differ. I currently have on loan a Sun-1 from Sun
which has 4.2 running on it. It may no longer be a product, but it does
exist.
—
eric
…!seismo!umcp-cs!aplvax!eric

—————-

Subject: Re: Performance of VAX/780/750, Pyramid & Sun
From: Tim Mann
To: net.works
Date: Aug 14, 1984, 4:17:12 PM

I think that people are confusing the difference between Sun-1 and Sun-2
with the difference between the Sun Model 100 and 120. The Model 100 is the
old style unit with the black and white metal case and the backplane under
the monitor. These originally came with Sun-1 processors, but can be
upgraded to be Sun-2’s. The Model 120 is the new style with the grey
plastic case and the backplane in a separate box. Model 120’s all have
Sun-2 processors. Around here we talk about the Sun-1/100, the Sun-2/100,
and the Sun-2/120 to make the distinction clear. (We’ll ignore the 150 and
170 for now.)
At any rate, 4.2 Unix runs only on Sun-2 processors, and definitely not on
Sun-1’s. (To further confuse the issue, there were some “Sun-1.5”
processors shipped which ran 4.1c Unix. These should all have been upgraded
to Sun-2’s by this time.)

–Tim

Mark Callow
Aug 8, 1984, 2:05:37 PM

These benchmarks would have been interesting but I have to treat them
as questionable due to the claim of running them on a Sun-1 under
4.2BSD. There is no such beast (unless you did it yourself; if so
I like to know how you dealt with page faults).

You might have a Sun-1.5 running 4.1c (which Sun have referred to
as the Berkeley Beta Release of 4.2). The Sun-1.5 is very slow
due to an additional wait state Sun had to add. The 4.1c release
(Sun 0.4) is very unloved around here. People found it slow and
liable to crash.

Now a Sun-2 running 4.2 (Sun Release 1.1) is a very different proposition.
It is fast (Our users perceive it as twice as fast as Sun1.5/4.1c). It
is also reliable. It would make a very nice personal computer.
—
From the TARDIS of Mark Callow
m…@qubix.UUCP, qubix!m…@decwrl.ARPA
…{decvax,ucbvax}!decwrl!qubix!msc, …{amd,ihnp4,ittvax}!qubix!msc

“Nothing shocks me. I’m an Engineer.”