Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!pasteur!ucbvax!hplabs!hp-pcd!hplsla!jima
From: jima@hplsla.HP.COM (              Jim Adcock)
Newsgroups: comp.lang.c++
Subject: Re: Another Performance Comparison
Message-ID: <6590053@hplsla.HP.COM>
Date: 16 May 88 19:13:56 GMT
References: <4800022@uiucdcsm>
Organization: HP Lake Stevens, WA
Lines: 7

Choice of compiler options seems to have a moderate effect on the 
generated g++ code.  Also the local g++ "guru" [whoever made g++ for
your system] can choose what compiler options are in or not in "-O",
so "-O" may or may not be a particularly "good" choice for your system
and your particular application.  The g++ options are worth playing with
for awhile, in order to get a feel for how they affect a particular 
application on a particular machine.  You can ultimately turn on a lot
of optimizations that would affect debugging during code development.