From: Paul Ruizendaal <firstname.lastname@example.org>
Subject: [TUHS] Re: forgotten versions
Date: Fri, 17 Jun 2022 16:50:13 +0200 [thread overview]
Message-ID: <B86E227E-73CF-4753-9B19-130A4D451C7A@planet.nl> (raw)
Wholeheartedly agree with the observations on forgotten versions, lack of source and a smaller pool of people back in the day.
It is not just the Research versions, also the internal AT&T versions and the base System V versions get little attention. Same reasons I think.
Luckily, these days the sources are available (although in the case of SysV of unclear legal status).
Part of the problem I think is that it is not well known what innovations are in each version. About 2 years ago I did a lot of spelunking through the V8 source and with the help of this list could come up with a list of highlights for V8 (text is now on the TUHS V8 source web page).
Never had the time to do that for V9. I think it was mentioned that it had a new filesystem with a bitmap free list. Also, it seems to have a lot of cleaned-up implementations of things that were new and rough in V8.
No clue what was new in V10.
Similar with Unix 3, Unix 4 and Unix 5. I’m thrilled that the docs for Unix 4 showed up recently. In these doc’s there is no material on IPC. From this I think that the IPC primitives from CB-Unix did not get merged in Unix 4, but only in Unix 5 (in a reworked form).
Personally, I’m still working (off and on) on recreating the Reiser demand paging system. To keep it interesting I’ve now got Sys III running on a small RISC-V board, and when I find another time slot I’ll try to add Reiser paging to it.
So the forgotten versions are only mostly forgotten, not totally forgotten :^)
next reply other threads:[~2022-06-17 14:50 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-17 14:50 Paul Ruizendaal [this message]
-- strict thread matches above, loose matches on Subject: below --
2022-06-24 6:47 Paul Ruizendaal
2022-06-25 19:16 ` Anthony Martin
2022-06-25 20:45 ` Paul Ruizendaal
2022-06-27 0:57 ` Kevin Bowling
2022-06-23 2:18 Noel Chiappa
2022-06-22 12:06 Noel Chiappa
2022-06-23 0:02 ` Dan Cross
2022-06-18 19:55 Paul Ruizendaal
2022-06-18 0:35 Douglas McIlroy
2022-06-18 5:00 ` Kevin Bowling
2022-06-18 5:13 ` Adam Thornton
2022-06-18 16:58 ` Clem Cole
2022-06-18 17:18 ` Warner Losh
2022-06-18 17:57 ` Clem Cole
2022-06-16 23:06 [TUHS] " Rob Pike
2022-06-16 23:17 ` [TUHS] " Earl Baugh
2022-06-16 23:18 ` George Michaelson
2022-06-16 23:44 ` George Michaelson
2022-06-17 0:10 ` Larry McVoy
2022-06-17 7:20 ` Diomidis Spinellis
2022-06-17 7:33 ` Rob Pike
2022-06-17 8:34 ` arnold
2022-06-17 10:52 ` arnold
2022-06-18 7:05 ` Angelo Papenhoff
2022-06-19 7:50 ` Rob Pike
2022-06-19 8:17 ` Angelo Papenhoff
2022-06-19 8:53 ` Rob Pike
2022-06-19 9:02 ` Angelo Papenhoff
2022-06-19 9:14 ` arnold
2022-06-19 9:19 ` Angelo Papenhoff
2022-06-19 9:23 ` arnold
2022-06-19 11:37 ` Matthias Bruestle
2022-06-19 14:47 ` Kenneth Goodwin
2022-06-19 16:27 ` Al Kossow
2022-06-19 18:32 ` Theodore Ts'o
2022-06-19 18:38 ` Dan Cross
2022-06-21 23:56 ` Jacob Moody
2022-06-22 0:13 ` Larry McVoy
2022-06-22 0:48 ` Rob Pike
2022-06-22 1:55 ` George Michaelson
2022-06-22 2:10 ` Bakul Shah
2022-06-22 2:14 ` Jon Steinhart
2022-06-22 2:19 ` Andrew Hume
2022-06-22 2:58 ` Rob Pike
2022-06-22 3:09 ` George Michaelson
2022-06-22 2:16 ` Andrew Hume
2022-06-22 2:55 ` Brad Spencer
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