From: Dave Horsfall <dave@horsfall.org>
To: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] Lorinda Cherry
Date: Thu, 17 Feb 2022 09:27:39 +1100 (EST) [thread overview]
Message-ID: <alpine.BSF.2.21.9999.2202170908540.45073@aneurin.horsfall.org> (raw)
In-Reply-To: <8735kig8vb.fsf@vuxu.org>
[-- Attachment #1: Type: text/plain, Size: 1912 bytes --]
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
next prev parent reply other threads:[~2022-02-16 22:30 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 [this message]
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 ` [TUHS] Lorinda Cherry Stuart Remphrey
2022-02-17 19:59 ` 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
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