Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site ecsvax.UUCP Path: utzoo!watmath!clyde!bonnie!akgua!mcnc!ecsvax!mjg From: mjg@ecsvax.UUCP (Michael Gingell) Newsgroups: net.micro.amiga Subject: Re: In the cause of Science ..... Message-ID: <719@ecsvax.UUCP> Date: Fri, 8-Nov-85 12:10:28 EST Article-I.D.: ecsvax.719 Posted: Fri Nov 8 12:10:28 1985 Date-Received: Wed, 13-Nov-85 07:40:16 EST References: <663@ecsvax.UUCP> <589@minster.UUCP> <398@aum.UUCP> Distribution: net Organization: North Carolina Educational Computing Service Lines: 23 > > >How fast is the Amiga ?. In the cause of Science I tried the Dhrystone > > >benchmark published recently in net.sources. Running in CLI mode only > > >and compiling with the current release of the Lattice compiler (no > > >Enums) I found it executed 50000 Drystone loops in 110 secs. Thats > > >approximately 450 Dhrystones/sec. > > > > Ok - so we ran it on an Atari 520ST ... 1092 Dhrystones/sec. This is, > > of course, independent of graphic mode, but if you wave the mouse about > > it slows down a bit. > > I should point out that the original 450 on the amiga was using the regular Lattice Compiler which uses 64 bit floating point arithemetic I believe. If I get time I will try it using the 32 bit routines in the Rom kernel. However these comparisons should be taken with a pinch of salt as it is compiler dependant - for all we know the Atari number could be for 16 bit integers. Of course, waving the mouse round on the Amiga makes no difference, you can run the disk drive, and the sound and have sprites going without the 68000 losing any of it's bus bandwidth. Mike Gingell ...decvax!mcnc!ecsvax!mjg