From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 1127 invoked from network); 16 Feb 2022 22:30:42 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 16 Feb 2022 22:30:41 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 2877D9D3A5; Thu, 17 Feb 2022 08:30:39 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id DB7C39D036; Thu, 17 Feb 2022 08:30:23 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 649679D036; Thu, 17 Feb 2022 08:27:45 +1000 (AEST) Received: from nsstlmta18p.bpe.bigpond.com (nsstlmta18p.bpe.bigpond.com [203.38.21.18]) by minnie.tuhs.org (Postfix) with ESMTPS id 551BD9D035 for ; Thu, 17 Feb 2022 08:27:44 +1000 (AEST) Received: from smtp.telstra.com ([10.10.24.4]) by nsstlfep18p-svc.bpe.nexus.telstra.com.au with ESMTP id <20220216222742.YJQY30715.nsstlfep18p-svc.bpe.nexus.telstra.com.au@smtp.telstra.com> for ; Thu, 17 Feb 2022 09:27:42 +1100 X-RG-Spam: Unknown X-RazorGate-Vade: gggruggvucftvghtrhhoucdtuddrgedvvddrjeeigdduiedtucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuuffpveftpgfvgffnuffvtfetpdfqfgfvnecuuegrihhlohhuthemucegtddtnecunecujfgurhepfffhvffujgfkfhgfgggtsehmtddtredtreejnecuhfhrohhmpeffrghvvgcujfhorhhsfhgrlhhluceouggrvhgvsehhohhrshhfrghllhdrohhrgheqnecuggftrfgrthhtvghrnhepgffftefgueejvedvleelheffhefhtdegvdekteeuuedviefggfejgeethfehtddtnecuffhomhgrihhnpehtuhhhshdrohhrghenucfkphepuddutddrudeguddrudelfedrvdeffeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhephhgvlhhopegrnhgvuhhrihhnrdhhohhrshhfrghllhdrohhrghdpihhnvghtpeduuddtrddugedurdduleefrddvfeefpdhmrghilhhfrhhomhepuggrvhgvsehhohhrshhfrghllhdrohhrghdpnhgspghrtghpthhtohepuddprhgtphhtthhopehtuhhhshesthhuhhhsrdhorhhg X-RazorGate-Vade-Verdict: clean 0 X-RazorGate-Vade-Classification: clean X-RG-VS-CLASS: clean Received: from aneurin.horsfall.org (110.141.193.233) by smtp.telstra.com (5.8.806) id 61BACA710BEEAAF9 for tuhs@tuhs.org; Thu, 17 Feb 2022 09:27:41 +1100 Received: from aneurin.horsfall.org (localhost [127.0.0.1]) by aneurin.horsfall.org (8.15.2/8.15.2) with ESMTP id 21GMReGd057185 for ; Thu, 17 Feb 2022 09:27:41 +1100 (EST) (envelope-from dave@horsfall.org) Received: from localhost (dave@localhost) by aneurin.horsfall.org (8.15.2/8.15.2/Submit) with ESMTP id 21GMReL1057182 for ; Thu, 17 Feb 2022 09:27:40 +1100 (EST) (envelope-from dave@horsfall.org) X-Authentication-Warning: aneurin.horsfall.org: dave owned process doing -bs Date: Thu, 17 Feb 2022 09:27:39 +1100 (EST) From: Dave Horsfall To: The Eunuchs Hysterical Society In-Reply-To: <8735kig8vb.fsf@vuxu.org> Message-ID: References: <202202160754.21G7sbUa011318@freefriends.org> <1nKFRN-4IZ-00@marmaro.de> <8735kig8vb.fsf@vuxu.org> User-Agent: Alpine 2.21.9999 (BSF 287 2018-06-16) X-GPG-Public-Key: http://www.horsfall.org/gpgkey.pub X-GPG-Fingerprint: 05B4 FFBC 0218 B438 66E0 587B EF46 7357 EF5E F58B X-Home-Page: http://www.horsfall.org/ X-Witty-Saying: "chmod 666 the_mode_of_the_beast" MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="1483753691-422299519-1645050460=:45073" Subject: Re: [TUHS] Lorinda Cherry X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --1483753691-422299519-1645050460=:45073 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT 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 --1483753691-422299519-1645050460=:45073--