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From: swk@mlb.semi.harris.COM ("Song W. Koh")
Newsgroups: comp.lang.scheme
Subject: Scheme performance
Message-ID: <9010130449.AA28696@seymour.mlb.semi.harris.com>
Date: 13 Oct 90 04:49:22 GMT
Sender: root@athena.mit.edu (Wizard A. Root)
Organization: The Internet
Lines: 20


I am working on a neural network application and the following is an
informal comparison of performance :

Lucid Lisp: 0.28 seconds   
MIT Scheme: 2.5  seconds   
PC-Scheme:  7.4 seconds

The application is "quickprop" Written by Scott Fahlman in Common
Lisp. I made a literal translation from Common Lisp to Scheme. The
program uses global vectors to store information, which are
manipulated in nested "do" loops.  All times are for compiled files.

Can anyone explain the 10X difference between Lucid and MIT Scheme? 

Song Koh
Harris Semiconductor

Phone:		(407)-724-7085
Internet:	swk@mlb.semi.harris.com