From: Paul Ruizendaal <pnr@planet.nl>
To: TUHS main list <tuhs@minnie.tuhs.org>
Cc: Noel Chiappa <jnc@mercury.lcs.mit.edu>
Subject: Re: [TUHS] Fwd: Choice of Unix for 11/03 and 11/23+ Systems
Date: Thu, 24 Sep 2020 13:02:53 +0200 [thread overview]
Message-ID: <3D6D5DB5-A500-470F-868D-A49F80B617E6@planet.nl> (raw)
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> V6, as distributed, had no networking at all. There are two V6 systems with
> networking in TUHS:
>
> https://minnie.tuhs.org//cgi-bin/utree.pl?file=SRI-NOSC <https://minnie.tuhs.org//cgi-bin/utree.pl?file=SRI-NOSC>
> https://minnie.tuhs.org//cgi-bin/utree.pl?file=BBN-V6 <https://minnie.tuhs.org//cgi-bin/utree.pl?file=BBN-V6>
>
> The first is an 'NCP' Unix (unless unless you have an ARPANet); the second is
> a fairly early TCP/IP from BBN (ditto, out of the box; although one could write
> an Ethernet driver for it).
I’ve also done a port of the BBN VAX stack to V6 (running on a TI990 clone), using a serial
PPP interface to connect. Experimental, but may have the OP's interest:
https://www.jslite.net/cgi-bin/9995/dir?ci=tip
> There's also a fairly nice Internet-capable V6 (well, PWB1, actually) from MIT
> which I keep meaning to upload; it includes SMTP, FTP, etc, etc. I also have
> visions of porting an ARP I wrote to it, and bringing up an Ethernet driver
> for the DEQNA/DELQA, but I've yet to get to any of that.
I’d love to have a look at that and compare and contrast the approaches.
I’m finding that BBN’s original design, with a separate kernel thread for the network stack,
is elegant but difficult to tune: too much priority and it crowds out user processes, too little
and the slow PPP line is not kept busy.
I think I’m beginning to understand why CSRG (and later also BBN) moved to
the interrupt driven structure of 4.2BSD: perhaps it was also difficult to tune for a
VAX with ethernet.
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next reply other threads:[~2020-09-24 11:11 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-24 11:02 Paul Ruizendaal [this message]
2021-02-03 0:12 ` Greg A. Woods
-- strict thread matches above, loose matches on Subject: below --
2021-02-03 1:25 Noel Chiappa
2020-10-18 21:36 Norman Wilson
2020-10-12 22:43 Noel Chiappa
2020-10-12 19:27 Noel Chiappa
2020-10-10 23:29 Noel Chiappa
2020-10-11 2:30 ` Jay Logue
2020-10-11 23:24 ` Paul Riley
2020-10-12 0:53 ` Dave Horsfall
2020-10-12 1:56 ` Warner Losh
2020-10-12 2:09 ` Andrew Warkentin
2020-10-12 16:57 ` Arthur Krewat
2020-10-18 20:42 ` Michael Huff
2020-10-08 23:49 Noel Chiappa
2020-10-08 16:06 Noel Chiappa
2020-10-06 23:08 Noel Chiappa
2020-10-07 5:24 ` Jay Logue
2020-10-06 20:34 Noel Chiappa
2020-10-06 19:34 Noel Chiappa
2020-10-06 19:04 Noel Chiappa
2020-10-06 14:46 Noel Chiappa
2020-10-06 16:22 ` jay-tuhs9915
2020-10-02 0:39 Noel Chiappa
2020-10-01 12:51 Noel Chiappa
2020-10-02 0:23 ` Paul Riley
2020-09-30 23:16 Noel Chiappa
2020-09-30 18:51 Noel Chiappa
2020-09-30 17:58 Noel Chiappa
2020-09-28 23:21 Noel Chiappa
2020-09-30 1:50 ` Paul Riley
2020-09-27 21:07 Noel Chiappa
2020-09-27 21:12 ` Warner Losh
2020-09-28 0:22 ` Pete Turnbull
2020-09-27 20:50 Noel Chiappa
2020-09-29 13:20 ` Paul Riley
2020-09-25 22:08 Noel Chiappa
2020-09-26 14:52 ` John Foust
2020-09-28 0:03 ` Paul Riley
2020-09-28 0:06 ` Paul Riley
2020-09-24 18:56 Noel Chiappa
2020-09-24 13:04 Noel Chiappa
2020-09-24 18:24 ` John Cowan
2020-09-24 1:28 Noel Chiappa
2020-09-23 23:14 Noel Chiappa
2020-09-24 1:09 ` John Foust
2020-09-22 21:51 John Foust
2020-09-22 21:36 Noel Chiappa
2020-09-22 21:46 ` Warner Losh
2020-09-22 21:49 ` John Foust
2020-09-22 15:59 Noel Chiappa
2021-02-03 0:07 ` Greg A. Woods
2020-09-22 0:47 Noel Chiappa
2020-09-21 19:37 Noel Chiappa
2020-09-21 23:16 ` devin davison
2020-09-21 18:13 Noel Chiappa
2020-09-21 17:59 Noel Chiappa
2020-09-21 18:18 ` Arthur Krewat
2020-09-20 13:12 Noel Chiappa
2020-09-19 15:28 Noel Chiappa
2020-09-21 10:26 ` Paul Riley
2021-01-24 16:07 ` Tom Ivar Helbekkmo via TUHS
2021-01-25 4:58 ` Gregg Levine
2021-01-25 8:21 ` Tom Ivar Helbekkmo via TUHS
[not found] <CAD05_j1bc6DDRtfPkd4QVeWXjwSp73bty46D=2ATozUbHThBWw@mail.gmail.com>
2020-09-19 3:22 ` Paul Riley
2020-09-19 14:20 ` Heinz Lycklama
2020-09-21 13:54 ` Paul Riley
2020-09-21 15:30 ` Heinz Lycklama
2020-09-21 23:27 ` Henry Bent
[not found] ` <4C35E6D2-8ABD-4DC2-BB2F-F15FA5BF30DD@icloud.com>
2020-09-22 0:22 ` Henry Bent
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