From: Stuart Remphrey <stu@remphrey.net>
To: Dave Horsfall <dave@horsfall.org>
Cc: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] Lorinda Cherry
Date: Thu, 17 Feb 2022 20:36:15 +0800 [thread overview]
Message-ID: <CAD0_1c=BUoUxY=8rYHOhAYHv6bUNsh-Fo87GTzLd0JT2e9ou7Q@mail.gmail.com> (raw)
In-Reply-To: <alpine.BSF.2.21.9999.2202170908540.45073@aneurin.horsfall.org>
[-- Attachment #1: Type: text/plain, Size: 3138 bytes --]
Sad news. Had read her papers in BSTJ early in my career. Very interesting
to read of her career, and thanks for the links.
I'm a daily/weekly "dc" guy (RPN ftw).
Never got into bc. Occasionally used eqn et al.
-----
> Wicat 150WS 27.3 sec
> Unison 32.6 sec
Unison must have been real slow!
Dave H. -- remember LSC's ads/posters:
"WICAT with *new* GLTC Technology"
Lionel/someone just made up the term.
For a while no-one asked, eventually it was revealed to stand for "Goes
Like The Clappers". ("A Wet Week" more like it)
Fortunately I supported the Unix stuff from LSC Brisbane/Qld. So in my
first UNIX job I got to play with Sun2-Sun4, lots'a Pyramids, one Convex.
Don't recall LSC's Gould though; before I joined?
When our sales reps sold WICAT (68000 or 68020?) it was mostly running PICK
ported by a bloke in our office (another Dave? I recall him destroying a
phone in frustration over the UART/terminal driver). Weird O/S: efficient
on-disk hashed DB; but very prone to corruption on unclean shutdown.
On Thu, 17 Feb 2022, 06:30 Dave Horsfall, <dave@horsfall.org> wrote:
> On Wed, 16 Feb 2022, Leah Neukirchen wrote:
>
> > Apparently it was a popular benchmark back in the day:
> > https://www.tuhs.org/Archive/Documentation/AUUGN/AUUGN-V05.1.pdf
>
> Yep.
>
> > > The benchmark was "echo 99k2vp8opq I /bin/time dc > /dev/null’. It
> > > uses dc (the desk calculator) to calculate the square root of 2 to 99
> > > decimal places,
>
> Ugh; that "I" ought to be "|" (and I can see other typos), so someone
> really needs to proofread those PDF scans if they're going to be regarded
> as authoritative. Yes, I can help...
>
> > > This benchmark has been applied to a large number of machines° It has
> > > (up until now) been useful because most manufacturers have not
> > > optimised dc, so the results are not likely to have been distorted by
> > > attempts to optimise for benchmarks.
>
> Indeed, when a lot of compilers recognised the Sieve of Eratosthenes being
> used and optimised for it... Wasn't all that long ago that vehicle
> manufacturers also started doing the same thing :-)
>
> > > Wicat 150WS 27.3 sec
> > > Unison 32.6 sec
>
> The WICAT 150 was just a terminal with several serial ports, and was
> p*ss-awful (I worked for Lionel Singer, and had to support the poxy
> thing); I'm surprised that it beat another box, though...
>
> > I looks like V7 dc used 100-limbs internally, so printing in decimal was
> > fast, but printing in octal required conversion.
>
> Yep; extra work for the CPU. Not much of a benchmark these days, as CPUs
> are really fast; when I was supporting Unify I used to use its automatic
> tutorial as a benchmark, and I used to joke that I needed a calendar on
> some boxes...
>
> Trivia: Lionel Singer also sold the then-new Sun-3, and we had one set up
> at an AUUG conference, giggling whenever someone tried that benchmark;
> what they didn't know was that the prominent window was actually an
> "rlogin" to the Gould that we also sold... The looks on their faces were
> priceless :-)
>
> -- Dave
[-- Attachment #2: Type: text/html, Size: 4269 bytes --]
next prev parent reply other threads:[~2022-02-17 12:39 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-15 22:31 Douglas McIlroy
2022-02-15 23:32 ` Steve Nickolas
2022-02-15 23:43 ` Jim Capp
2022-02-15 23:51 ` Larry McVoy
2022-02-16 0:54 ` Will Senn
2022-02-16 2:58 ` Steve Nickolas
2022-02-16 0:09 ` George Michaelson
2022-02-16 0:24 ` Dave Horsfall
2022-02-16 7:54 ` arnold
2022-02-16 8:13 ` markus schnalke
2022-02-16 14:54 ` Leah Neukirchen
2022-02-16 22:27 ` Dave Horsfall
2022-02-16 22:40 ` Andrew Diller
2022-02-17 10:14 ` Peter Jeremy via TUHS
2022-02-17 15:50 ` Adam Thornton
2022-02-17 20:23 ` Dave Horsfall
2022-02-17 10:24 ` Andy Kosela
2022-02-17 16:05 ` Andrew Hume
2022-02-17 16:38 ` Warner Losh
2022-02-16 22:42 ` Larry McVoy
2022-02-16 22:56 ` Clem Cole
2022-02-16 23:49 ` Paul Winalski
2022-02-16 23:49 ` [TUHS] Benchmarks Bakul Shah
2022-02-17 1:02 ` Larry McVoy
2022-02-17 12:36 ` Stuart Remphrey [this message]
2022-02-17 19:59 ` [TUHS] Lorinda Cherry Tom Ivar Helbekkmo via TUHS
2022-02-17 21:18 ` Dave Horsfall
2022-02-17 21:44 ` Bakul Shah
2022-02-18 8:33 ` Otto Moerbeek
2022-02-22 10:39 ` Ralph Corderoy
2022-02-22 15:53 ` Otto Moerbeek
2022-02-20 17:29 ` Derek Fawcus
2022-02-17 22:00 ` David Arnold
2022-02-18 9:58 ` Tom Ivar Helbekkmo via TUHS
2022-02-16 14:34 ` [TUHS] dc after bc Ralph Corderoy
2022-02-16 19:08 ` [TUHS] Lorinda Cherry Diomidis Spinellis
2022-02-16 20:55 ` John P. Linderman
2022-02-16 21:17 ` Andrew Hume
2022-02-16 21:59 ` Marshall Conover
2022-02-17 5:51 ` arnold
2022-02-17 22:09 ` Will Senn
2022-02-16 0:35 ` Andrew Hume
2022-02-16 8:02 ` Thomas Paulsen
2022-02-16 14:05 ` [TUHS] Shower of Dogs Ralph Corderoy
2022-02-16 14:09 ` Andrew Hume
2022-02-16 15:01 ` Larry McVoy
2022-02-16 16:57 ` Douglas McIlroy
2022-02-16 17:03 ` Dennis Boone
2022-02-16 17:18 ` Warner Losh
2022-02-16 14:09 ` Chet Ramey
2022-02-16 14:35 ` Ron Natalie
2022-02-16 14:41 ` Ralph Corderoy
2022-02-16 15:08 ` Rich Morin
2022-02-16 21:21 ` Dave Horsfall
2022-02-16 21:25 ` John Cowan
2022-02-17 3:31 ` Chet Ramey
-- strict thread matches above, loose matches on Subject: below --
2022-02-22 0:02 [TUHS] Lorinda Cherry Brian Walden
2022-03-01 21:51 ` Terry Jones
2022-02-18 3:18 Norman Wilson
2022-02-18 9:10 ` Peter Jeremy via TUHS
2022-02-15 21:17 John P. Linderman
2022-02-15 21:26 ` Dave Horsfall
2022-02-15 21:33 ` Jeffrey Joshua Rollin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAD0_1c=BUoUxY=8rYHOhAYHv6bUNsh-Fo87GTzLd0JT2e9ou7Q@mail.gmail.com' \
--to=stu@remphrey.net \
--cc=dave@horsfall.org \
--cc=tuhs@tuhs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).