Date: Sun, 9 Mar 1997 18:04:29 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: solyom AT eik DOT bme DOT hu
cc: djgpp <djgpp AT delorie DOT com>
Subject: Re: Interesting benchmark results
In-Reply-To: <33203E53.22DA@eik.bme.hu>
Message-ID: <Pine.SUN.3.91.970309180414.26812U-100000@is>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


On Fri, 7 Mar 1997, DR. Andras Solyom wrote:

> System                        rel. speed (higher numbers are better)
> ....................................................................
> Pentium 100, Win95, DJGPP2, -O         46.3
>                             -O3        45   (slower ?? )
>              DOS6.22        -O         49
>                             -O3        49.9
> RISC 6000, AIX, XLC         -O         48

I wonder why people always jump right to -O3, bypassing -O2?  More is
not always better, I have seen many times a program that got slower by
-O3 relative to -O2.  It would be interesting to see how that
benchmark performs with -O2.

> And it is very
> impressive that my PC with DJGPP can be as fast or faster than our
> workstations...

What clock speed does that IBM 6000 have?