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From: ejk@ux1.cso.uiuc.edu (Ed Kubaitis)
Newsgroups: comp.windows.x
Subject: xfroot timing update
Message-ID: <1989Oct6.142454.22771@ux1.cso.uiuc.edu>
Date: 6 Oct 89 14:24:54 GMT
Sender: news@ux1.cso.uiuc.edu (News)
Reply-To: ejk@ux1.cso.uiuc.edu (Ed Kubaitis)
Organization: University of Illinois at Urbana
Lines: 50

Here is an updated list of xfroot fractal-points/processor_second 
measured on various clients. The number, a count of trips/second
through the 8 line "hopalong" loop in xfroot, is a rough index of scalar 
double-precision floating point uniprocessor speed.

       Cray X-MP             157,000 to 194,000*     (*=per processor)
       Cray 2                129,000 to 183,000*     
       DEC DS5800             95,000 to 115,000
       DEC DS5400             77,000 to  91,000    
       DEC DS3100             58,000 to  75,000
       Gould NP1              44,000 to  60,000* 
       DEC Vax 6400 (vcc)     50,000 to  57,000
       Convex C200 (vc -O2)   49,000 to  55,000*
       Convex C200            41,000 to  47,000*
       Sun Sparcstation 1    ~25,000 to        
       DEC MV3900 (vcc)       22,900 to  26,100
       Sun 4/380             ~21,000 to ~23,000
       DEC Vax 6220           16,800 to  19,200
       DEC Vaxserver 3500     13,200 to  15,200
       Sun 3/50 (gcc 68881)             ~11,200
       Sequent Symmetry        9,900 to  10,500*
       Sun 3/60 (-f 68881)     8,000 to   8,750
       DEC Vaxstation 2000/vcc 5,530 to   6,330
       Sun 3/50 (-f 68881)     5,480 to   6,080
       DEC Vaxstation 2000     4,670 to   5,530
       Sun 3/60                1,960 to   2,060
       Sun 3/50                1,270 to   1,330
       Sun 3/160 (no fpa)                  ~950

Thanks to:  bryan%kewill@uunet.uu.net, eric@geology.tn.cornell,
evans@decvax.dec.com, glenn@mathcs.emory.edu, harrison@decwrl.dec.com, 
hleroy@erisa.fr, howard@aic.hrl.hac.com, kline@ux1.cso.uiuc.edu,  
for sharing their results.

I would appreciate hearing about measurements on other clients, or results
differing significantly from those above.  To perform your own 
xfroot micro-benchmark:

	1. Get xfroot/part01 (V5-I3) and xfroot/patch1(V5-I7) from
	   comp.sources.x.
	2. Install xfroot on the client to be tested, taking care
	   that you have verified the definition of HZ in xfroot.c.
	   (See the README.)
	3. Make the following two runs:

	      xfroot -a 0.1 -b 0.1 -c 0.1    (lower bound)
	      xfroot -a 3000 -b 3000 -c 3000 (upper bound)
-------------------------
Ed Kubaitis (ejk@ux1.cso.uiuc.edu)
Computing Services Office - University of Illinois, Urbana