From: Larry McVoy <lm@mcvoy.com>
To: Andrew Warkentin <andreww591@gmail.com>
Cc: tuhs@tuhs.org
Subject: Re: [TUHS] A/UX [was Linux is on-topic]
Date: Mon, 20 Jul 2020 04:49:57 -0700 [thread overview]
Message-ID: <20200720114957.GL26294@mcvoy.com> (raw)
In-Reply-To: <CAD-qYGqEubTOMbBckDio8jW1tO1E6oJka5qSSto08Nu-9ZF-WA@mail.gmail.com>
On Mon, Jul 20, 2020 at 03:48:29AM -0600, Andrew Warkentin wrote:
> A/UX runs Mac OS as a Unix process (its default GUI is Mac OS although
> it does also support a traditional X server), making it the opposite
> of MachTen. It has considerable integration between Mac OS and Unix,
> and supports "hybrid" programs (Unix programs that make Mac OS system
> calls and Mac OS programs that make Unix system calls) (which I don't
> think MachTen supports, but I'm not completely sure of that). It is
> one of only two Unices that I'm aware of that runs another OS in a
> process to provide its main GUI (the other is a much more recent Linux
> distribution that runs AROS; I'm not counting things like running
> Windows under Merge or VP/IX because those were usually used in
> addition to X11).
This isn't quite the same but Victor Yodaiken wrote a real time kernel
that ran all of Linux as a user process. Super cool idea and it worked
great, he would demo it sampling the parallel port while Linux was running
some X11 perf thing, tarring up /usr and untarring on nfs://server/tmp/usr
and doing a ftp transfer. Basically beating the crap out of Linux as
hard as he could while running a real time sampler and it never missed.
Clem should pay attention, in my opinion, this is how you do Unix and
real time. Because Unix is time sharing and throughput, that is the
opposite of what real time is. Wedging real time into Unix is a mistake.
http://mcvoy.com/lm/papers/rtlmanifesto.pdf
--lm
next prev parent reply other threads:[~2020-07-20 11:51 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-17 18:08 [TUHS] H.J. Lu Bootable Root & Base System disks Norman Wilson
2020-07-17 18:14 ` John Cowan
2020-07-17 18:19 ` Larry McVoy
2020-07-17 19:53 ` [TUHS] Linux is on-topic Warren Toomey
2020-07-17 19:57 ` Larry McVoy
2020-07-17 20:00 ` Adam Thornton
2020-07-17 20:04 ` Larry McVoy
2020-07-17 20:03 ` Dan Cross
2020-07-17 23:31 ` A. P. Garcia
2020-07-19 10:26 ` emanuel stiebler
2020-07-17 20:07 ` Warren Toomey
2020-07-17 20:12 ` Warner Losh
2020-07-17 20:19 ` Clem Cole
2020-07-19 9:54 ` Sergio Pedraja
2020-07-17 20:08 ` Michael Kjörling
2020-07-17 20:55 ` Grant Taylor via TUHS
2020-07-17 21:28 ` Michael Kjörling
2020-07-18 20:22 ` Ed Carp
2020-07-18 20:29 ` Warner Losh
2020-07-19 2:31 ` Gregg Levine
2020-07-19 3:46 ` Wesley Parish
2020-07-19 4:42 ` Grant Taylor via TUHS
2020-07-19 18:01 ` Michael Parson
2020-07-20 8:47 ` [TUHS] A/UX [was Linux is on-topic] arnold
2020-07-20 9:46 ` Arno Griffioen
2020-07-20 16:35 ` Arthur Krewat
2020-07-20 17:44 ` Arno Griffioen
2020-07-20 19:07 ` Rich Morin
2020-07-20 19:45 ` Al Kossow
2020-07-20 19:49 ` Al Kossow
2020-07-24 0:01 ` Chris Hanson
2020-07-20 20:20 ` Ed Carp
2020-07-20 21:02 ` John Cowan
2020-07-20 22:27 ` Ed Carp
2020-07-24 0:04 ` Chris Hanson
2020-07-31 23:02 ` Dave Horsfall
2020-07-31 23:12 ` Richard Salz
2020-08-01 1:36 ` Larry McVoy
2020-08-01 16:08 ` Nemo Nusquam
2020-08-01 17:01 ` Arthur Krewat
2020-08-13 0:00 ` Dave Horsfall
2020-08-13 1:47 ` Larry McVoy
2020-08-13 3:15 ` Grant Taylor via TUHS
2020-08-13 4:02 ` Larry Cashdollar via TUHS
2020-08-31 21:12 ` Dave Horsfall
2020-09-03 14:10 ` Michael Parson
2020-08-13 1:53 ` Nemo Nusquam
2020-08-13 17:14 ` Dan Cross
2020-08-13 17:19 ` Henry Bent
2020-08-13 17:58 ` Warner Losh
2020-08-13 20:04 ` John Cowan
2020-08-13 20:52 ` Dan Cross
2020-08-14 17:31 ` Paul Winalski
2020-08-15 1:24 ` Dave Horsfall
2020-08-18 13:57 ` Derek Fawcus
2020-08-18 14:11 ` John Cowan
2020-08-31 21:20 ` Dave Horsfall
2020-08-13 19:18 ` Adam Thornton
2020-08-13 19:28 ` Warner Losh
2020-08-13 20:15 ` [TUHS] AIX link repost [was " Charles H Sauer
2020-08-13 20:09 ` [TUHS] " Rich
2020-08-13 20:16 ` Larry McVoy
2020-08-13 20:17 ` Dr Iain Maoileoin
2020-08-14 1:04 ` Christopher Browne
2020-08-14 17:18 ` Jim Capp
2020-08-14 17:37 ` Jim Capp
2020-08-14 17:39 ` Jon Steinhart
2020-08-15 0:33 ` Rich
2020-08-15 1:20 ` Larry McVoy
2020-08-15 2:08 ` Dave Horsfall
2020-08-15 2:47 ` Warner Losh
2020-08-15 17:44 ` Paul Winalski
2020-08-15 12:05 ` Thomas Paulsen
2020-08-15 1:33 ` Jon Steinhart
2020-08-15 2:02 ` Dave Horsfall
2020-08-15 2:45 ` Andrew Hume
2020-08-15 16:55 ` William Cheswick
2020-08-15 3:29 ` Larry McVoy
2020-08-15 1:40 ` Gregg Levine
2020-08-13 22:24 ` Grant Taylor via TUHS
2020-07-24 0:02 ` Chris Hanson
2020-07-20 9:48 ` Andrew Warkentin
2020-07-20 11:49 ` Larry McVoy [this message]
2020-07-20 14:36 ` Clem Cole
2020-07-20 17:24 ` John Cowan
2020-07-20 22:11 ` Ed Carp
2020-07-21 1:04 ` Larry McVoy
2020-07-22 3:13 ` tytso
2020-07-22 5:40 ` Bakul Shah
2020-07-22 14:16 ` Larry McVoy
2020-07-20 12:32 ` Derrik Walker v2.0
2020-07-20 12:54 ` Andrew Warkentin
2020-07-21 1:50 ` Larry McVoy
2020-07-21 2:30 ` Gregg Levine
2020-07-22 3:44 ` Jason
2020-07-22 12:23 ` Derrik Walker v2.0
2020-07-20 14:28 ` Clem Cole
2020-07-22 3:50 ` Jason
2020-07-22 4:26 ` Henry Bent
2020-07-24 0:10 ` Chris Hanson
2020-07-20 0:24 ` [TUHS] Linux is on-topic Ed Carp
2020-07-22 3:41 ` Jason
2020-07-22 16:15 ` Michael Parson
2020-07-18 3:34 ` Tomasz Rola
2020-07-18 16:45 ` Christopher Browne
2020-07-19 7:32 ` Lars Brinkhoff
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