Date: Sun, 10 Jan 1999 13:45:22 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: Vic <tudor AT cam DOT org>
cc: djgpp AT delorie DOT com
Subject: Re: GCC 2.8.1 performance: NEED FEEDBACK
In-Reply-To: <3697995C.6819@cam.org>
Message-ID: <Pine.SUN.3.91.990110134453.20678d-100000@is>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Reply-To: djgpp AT delorie DOT com


On Sat, 9 Jan 1999, Vic wrote:

> I downloaded GCC 2.8.1 and DJGPP 2.02 and I noticed a performance
> decrease.

Please read section 14.2 of the DJGPP FAQ list.  It explains why this
can happen, and gives advice how to get better performance from newer
versions of the compiler.  (Hint: your optimized set of compiler
switches might be too specific to the old compiler version.)

> also, I'm confused about GCC 2.8.1 and DJGPP 2.02.
> what is the difference?

They are two different products.  GCC is a compiler, while DJGPP
includes header files and libraries for that compiler.

> Can I get DJGPP 2.02 and still use GCC 2.7.2.1 or PGCC?

Yes, you can.  But 2.8.1 should be a better and a faster compiler, so
you should seriously consider using it anyway.