Xref: utzoo comp.lang.fortran:925 comp.unix.questions:8285
Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!ucsd!ucsdhub!esosun!seismo!uunet!steinmetz!davidsen
From: davidsen@steinmetz.ge.com (William E. Davidsen Jr)
Newsgroups: comp.lang.fortran,comp.unix.questions
Subject: Re: Sun 3 vs uVAXII floating point speed....
Message-ID: <11558@steinmetz.ge.com>
Date: 18 Jul 88 17:59:45 GMT
References: <25065@ucbvax.BERKELEY.EDU>
Reply-To: davidsen@crdos1.UUCP (bill davidsen)
Distribution: na
Organization: General Electric CRD, Schenectady, NY
Lines: 26

In article <25065@ucbvax.BERKELEY.EDU> ao@cevax.berkeley.edu (Akin Ozselcuk) writes:

| HOW ABOUT FLOATING POINT SPEEDS OF Sun386i vs uVAXII?

  An 11/780 is faster than a MV-II. A Sun3-260 is faster than a 780. I
include some figures I measured, showing actual instructions executed by
a high level language. I include figures from a Dell310 (386/387) simply
as a note of how far power has come in six years.

		U;ltrix 2.0	SunOS 3.2	Xenix/386 2.2.2
test		11/780		3/260		387
		w/ FPA		68881-20	80387-20

short		 302.1		1118.7		1922.1
long		 455.7		1804.2		1837.4
float		 136.7		 395.6		 442.3
double		 180.5		 457.2		 369.6

  All numbers are in a mix, similar to a Gibsom mix, described as
typical in an old IEEE journal. The mix percentages were rounded to the
nearest 5% before weighting. Like all benchmarks, this reveals trends
and small differences are not meaningful.
-- 
	bill davidsen		(wedu@ge-crd.arpa)
  {uunet | philabs | seismo}!steinmetz!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -me