Message-Id: <m10pUEy-001mHUC@Dirac.Chemie.FU-Berlin.DE>
From: melchers AT chemie DOT fu-berlin DOT de (Bernd Melchers)
Subject: Performance of Krzysztof program
To: pgcc AT delorie DOT com
Date: Thu, 3 Jun 1999 11:56:47 +0200 (MEST)
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I tested Krzysztofs program (gausil) at the same computer
and different operating systems:

intel BX board, P2-400MHz:
Win98/VC++6.0/standard-release flags:
1.32 sec
Linux-2.2.9/egcs-1.1.2/glibc2/-O6 -march=pentiumpro -mcpu=pentiumpro
3.06 sec
(simlar for -O2)

why is the microsoft compiler so much better?

It seems that there is much room for improvements in egcs and pgcc.

i have also other values for computers in our group:
Amd K6-233   VC++6  2.3 sec
Amd K6-2-350 VC++6  1.6 sec
SGI Mips R4000-100  7.27 sec
SGI Mips R8000-75   3.28 sec
SGI Mips R10000-225 0.854 sec

our oldest PC with the old Amd K6-233 CPU is 25% faster with Windows/VC++
than our newest PC with P2-400 and Linux/egcs! How could this be true???

Ciao
Bernd
-- 
Bernd Melchers             | melchers AT FU-Berlin DOT DE
Freie Universitaet Berlin  | "We don't write software, we compose it."
AG Macromolecular Modelling - Prof. Dr. E.W. Knapp
for more information see http://userpage.chemie.fu-berlin.de/~melchers/