Re: Performance decrease with Unix32/v1.1.1

From: Robert Harley (Robert.Harley@inria.fr)
Date: Wed Mar 08 2000 - 20:10:45 MET

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Dr. Sven Dietrich reported a slowdown with a K6-2 chip running FreeBSD.

Xavier Hienne had previously made an RPM optimised for K6 using pgcc
with the following flags:

  -O3 -fomit-frame-pointer -malign-loops=1 -malign-jumps=1 -malign-functions=2
  -mpreferred-stack-boundary=3 -funroll-all-loops -fexpensive-optimizations
  -fstrict-aliasing -mpentium -mwide-multiply

After I compiled FreeBSD versions using GCC 2.95 with these flags and
-DMMX, Sven confirmed that he did get a speedup.

People who want to try Xavier's RPM (v1.1.0) can get it here:

http://www.linux-nantes.fr.eu.org/~xavier/RPMS/ecdl/

Bye,
Rob.

Next message: Ian Wehrman: "more performance questions"
Previous message: Robert Harley: "Re: Version 1.1.1 / Compilation flags"
Maybe in reply to: Dr. Sven Dietrich: "Performance decrease with Unix32/v1.1.1"
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