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From: Ted Dennison <dennison@telepath.com>
Subject: Re: GNAT -vs- ObjectAda (was Re: where is the faq)
Date: 1999/07/19
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In article <3790b774.0@news.pacifier.com>,
  "Steve Doiel" <nospam_steved@pacifier.com> wrote:
> We have compiled and ran our code under both ObjectAda and GNAT.
> The code compiled under GNAT tends to run approximately 2X the
> speed.  The GNAT debugger (GDB) also permits viewing nearly all
> variables, while the ObjectAda debugger is somewhat limited in this
> regard, which is frustrating.

Ahh, yes. One important thing I left out of the comparison list.
ObjectAda doesn't have many options for optimization. Apparently about
all it can do is some peephole optimizations. gcc (and thus gnat) has
*tons* of optimization options. I wouldn't be too suprised to hear that
this often causes optmized Gnat exe's to run faster than optimized OE
exe's.

--
T.E.D.


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