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Subject: Re: GCC 2.95.3 parallel very fast

Author: Gian-Carlo Pascutto

Date: 06:25:13 04/14/01

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On April 13, 2001 at 17:45:10, Vincent Diepeveen wrote:

>However that's all single cpu measured.
>When running dual then very interesting is the size of the
>program in the L1,L2 caches (when talking about DIEP that is).
>
>Single cpu gcc 2.95.3 is only 8% slower as visual c++ 6.0 sp5 now.
>Using compile options:
>  -O5 -march=pentiumpro -mcpu=pentiumpro -fno-gcse -fforce-mem
>

If size is what matters most for you, try

gcc -O2 -Os -march=pentiumpro -fno-gcse

I believe -fforce-mem is already enabled by default in newer gcc's

--
GCP



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