4.2 had networking, 4.1 did not. 32V did not either. I'm asking 32V vs 4.1 ᐧ On Sun, Jun 6, 2021 at 2:30 PM Larry McVoy <lm(a)mcvoy.com> wrote:

Didn't 4.1c have some kind of networking?

Clem Cole <clemc(a)ccc.com> wrote: 4.3 was ~ 3 years after 4.2 (1983 -> 1986). It was mainly a huge number of bug fixes and performance improvements. For example? As I remember it, it was essentially a super-bug-fixed version of 4.2. Nothing more. It was many years after that, circa 1992. Arnold

Clem Cole <clemc(a)ccc.com> wrote: Both of those were 4.4. Just to set the record straight. :-) Thanks, Arnold

4.2 and cheap LAN connections and later WAN connections drove the hockey stick - no doubt and your are right, until the Stream networking work (which was originally Steve Rago and the folks in Summit, IIRC), PWB 3/PWB 4.0 and later the commercially System V was definitely at a huge disadvantage and even when the Streams networking code shows us, the performance was not nearly as good plus by that time, all the code had started to assume sockets (and sockets had been ported to DOS), so Streams was still born. ᐧ On Sun, Jun 6, 2021 at 2:35 PM Clem Cole <clemc(a)ccc.com> wrote:

On Sun, Jun 6, 2021 at 2:39 PM Warner Losh &lt;imp(a)bsdimp.com&gt; wrote: Right - certainly my behavior and what I preached at the time. But it was also true for >>some<< sites inside the labs - frankly many from the ones I knew (Mary Ann what did run in Columbus). There were definitely copies of BSD in IH, as I know sent some of the stuff from my own work there. I never really understood who 'had' to run 32/V or (PWB 3.0 and PWB 4.0) and like Redman and the Marx machines were 'allowed' to be BSD. What I came to realize is that if a site ran VMS inside the labs, it was because they either had a commercial app that required it, or a had some really important FORTRAN code that needed the DEC tools. In the case of the later, since the stuff I worked on had a commercial Fortran compiler associated (great-great-grandfather to PGI compilers), those sites could use BSD so they could get the distribution (I must have written about 25-30 tapes before I left). But my stuff only ran on BSD 4.1/4.1a/4.1b/4.1c - I think Rick Spieklemeyers updated it when 4.2 and 4.3 finally finished but I had left UCB by then. ᐧ

At Sun, 6 Jun 2021 14:23:49 -0400, Clem Cole &lt;clemc(a)ccc.com&gt; wrote: Subject: Re: [TUHS] 32V memory management: not quite V7 style swapping -- source code update If my memory serves me correctly, University of Calgary ran 32V on their first teaching VAX 11/780 for a short while when I was starting my second year of undergrad (Sept. through to the xmas break, IIRC). This would be the fall of 1980. After that first term I think it was running 3BSD for the rest of the semester, and finally was running and early 4BSD not long after. As I recall they had tried to run 3.x right away but had some problems (possibly with a serial driver? the initial setup had some 20 or 30 terminals) and in order to not have all us students trying to crowd onto the old PDP 11/60 with just 12 terminals (which was also still in use by a bunch of classes), while the VAX sat idle, they just gave up and (re)installed 32V. I think my class probably lost a week or two of time to use the system. At that time the only other teaching system was the Multics mainframe, and it was also overloaded with too many users. I remember being a little dismayed that the BSD C compiler seemed entirely different from 32V (where it was very V7-like and thus what I was familiar with from first year). It wasn't until 4BSD offered me job control and command history in CSH that I finally became more accepting of BSD. I think it was after the 4.x upgrade that they instituted CPU time limits for students, and I remember discovering that if one caught SIGXCPU then the limit just kept increasing -- i.e. the hard limit never worked in the initial release of whatever version it was -- so I wrote a little program that would catch the signal, then burn CPU in a loop until the limit was above some requested value, and then it would fork a shell. I put that in my ~/.login and had lots of fun until I was caught. Then I fessed up and didn't get expelled! They fixed the bug of course and as a result of it all I then got to know the sysadmins better and learned an awful lot more from them than I did in class on some/many days. -- Greg A. Woods &lt;gwoods(a)acm.org&gt; Kelowna, BC +1 250 762-7675 RoboHack &lt;woods(a)robohack.ca&gt; Planix, Inc. &lt;woods(a)planix.com&gt; Avoncote Farms &lt;woods(a)avoncote.ca&gt;