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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
Date: 1999-07-19T00:00:00+00:00	[thread overview]
Message-ID: <7mvbrv$t7f$1@nnrp1.deja.com> (raw)
In-Reply-To: 3790b774.0@news.pacifier.com

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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  parent reply	other threads:[~1999-07-19  0:00 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-07-14  0:00 where is the faq Rick Sutcliffe
1999-07-14  0:00 ` David Botton
1999-07-15  0:00 ` Ted Dennison
1999-07-16  0:00 ` David Kristola
1999-07-16  0:00 ` Ted Dennison
1999-07-16  0:00   ` tmoran
1999-07-16  0:00     ` Stanley R. Allen
1999-07-17  0:00     ` Robert Dewar
1999-07-25  0:00       ` tmoran
1999-07-17  0:00     ` GNAT -vs- ObjectAda (was Re: where is the faq) Steve Doiel
1999-07-17  0:00       ` Robert Dewar
1999-07-26  0:00         ` Pascal F. Martin
1999-07-26  0:00           ` Robert Dewar
1999-07-29  0:00             ` Pascal F. Martin
1999-07-30  0:00               ` Ted Dennison
1999-08-03  0:00                 ` Pascal F. Martin
1999-08-03  0:00                   ` jerry
1999-08-04  0:00                   ` Robert Dewar
1999-08-04  0:00                     ` Samuel T. Harris
1999-07-19  0:00       ` Ted Dennison [this message]
1999-07-19  0:00       ` Gautier
1999-07-17  0:00     ` where is the faq Robert Dewar
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