Article View: comp.sys.atari.st
Article #27234More ST Floating Point Performance
From: Richard Sansom
Date: Wed, 10 Jun 1987 05:32
Date: Wed, 10 Jun 1987 05:32
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1722 bytes
I asked Joe Knapp (ihnp4!asr2!jmk) to send me a copy of orbit.c so I could
compile and execute with MWC 2.0. Well, he sent it, I compiled it, and got
results which produce the following updated performance chart:
machine compiler run time (s) accuracy
=========== ============ ======== ==========
520ST Lattice 3.03.01 480 very good
6300+ Microsoft 192 excellent
>> 520ST MWC 2.0 180 excellent
Amiga 1000 Manx -lm 25 poor
6300+/80287 Microsoft 22 excellent
VAX 11/785 Unix V cc 4 excellent
The good news is that the results were _exactly_ the same as those produced
by the VAX 11/785. The bad news is that the ST is still much slower than it
should be (based on the Amiga's performance).
I'm gonna kick this thing around for a few more days and see if I can
determine just what is slowing the ST down soooooo much.
-Rich
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/// Richard E. Sansom TRW Electronics & Defense Sector \\\
\\\ {decvax,ucbvax,ihnp4}!trwrb!sansom Redondo Beach, CA ///
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Technical Details
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!rutgers!cbmvax!bpa!burdvax!sdcrdcf!trwrb!sansom From: sansom@trwrb.UUCP (Richard Sansom) Newsgroups: comp.sys.atari.st Subject: More ST Floating Point Performance Message-ID: <1959@trwrb.UUCP> Date: Wed, 10-Jun-87 01:32:09 EDT Article-I.D.: trwrb.1959 Posted: Wed Jun 10 01:32:09 1987 Date-Received: Sat, 20-Jun-87 04:20:05 EDT Reply-To: sansom@trwrb.UUCP (Richard Sansom) Organization: TRW EDS, Redondo Beach, CA Lines: 26