Xref: utzoo comp.object:2038 comp.lang.smalltalk:2319
Path: utzoo!utgpu!watserv1!watmath!att!att!tut.cis.ohio-state.edu!abvax!iccgcc!klimas
From: klimas@iccgcc.decnet.ab.com
Newsgroups: comp.object,comp.lang.smalltalk
Subject: Smalltalk performance tips
Message-ID: <1712.272d936c@iccgcc.decnet.ab.com>
Date: 30 Oct 90 19:51:24 GMT
Lines: 14

One can achieve significant (i.e. 5-10x) performance improvements in Smalltalk 
by following a few simple rules.

	-don't create objects inside enumerations (loops).
	-use arrays instead of ordered collections whenever they can be
	 presized.
	-byte align graphics (i.e. use an X coordinate that is an even multiple
	 of 8, e.g. 8@0, 16@3, 64@22).

There are other pearls of wisdom, but these are relatively painless and can
provide immediate improvement with minimum effort.

BTW the last recommendation may be Digitalk specific and has not been verified 
for Smalltalk-80.