Mailinglist Archive: opensuse-factory (850 mails)

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Re: [opensuse-factory] Dist Meeting 2006-09-14: Proposed Agenda
  • From: Marc Collin <collinm@xxxxxxxxxxxxxxxx>
  • Date: Wed, 13 Sep 2006 16:46:30 -0400
  • Message-id: <200609131646.30201.collinm@xxxxxxxxxxxxxxxx>
Le mercredi 13 septembre 2006 15:59, Stephan Kulow a écrit :
> Am Mittwoch, 13. September 2006 20:57 schrieb Marc Collin:
> > minimum to be done: -march=x86-64
> >
> > i think x86 64 bits have minimum sse2
> >
> > -mfpmath=sse2
> >
> > -msse2
> > -funroll-all-loops
>
> Make sure you read http://funroll-loops.org/ - what exactly do you measure?
>

time to start, time to run function.....

when i created some program in C for a company i used often something similar
to....

g++ -O2 -funroll-all-loops -fomit-frame-pointer -ffast-math -march=x86-64 -mfpmath=sse
program_name.cpp -o program_name

i get about 10% faster then the standard syntax....

without change my code.....
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