[mythtv-users] Compiler optimizations

steve at nexusuk.org steve at nexusuk.org
Sun Feb 22 13:14:33 EST 2004


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On Sun, 22 Feb 2004, Joseph A. Caputo wrote:

> Am I missing something?  I don't understand why you should be surprised.  I'd 
> expect -march=pentium3 to generate code that took better advantage of P3 
> features vs. -march=pentiumpro.  Unless it's the --fast-math part that you 
> find counter-intuitive?

Well I'm using an Athlon-XP, and today I tried recompiling with 
- -march=pentium3 and -march=athlon-xp and neither seemed especially 
different to -march=pentiumpro as far as CPU used goes.

- -- 

 - Steve                                             http://www.nexusuk.org/

     Servatis a periculum, servatis a maleficum - Whisper, Evanescence

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