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Subject: Re: Pentium 4 optimized Crafty (& Tbird)

Author: Gian-Carlo Pascutto

Date: 02:42:50 09/27/01

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On September 27, 2001 at 05:33:06, Aaron Gordon wrote:

>CFLAGS = -O2 -Qipo -G6 -Qunroll -Qprof_use -Qprof_dir c:\opt

The newer Intel C's support -O3 as well, might want to try it.

>After that it will create the optimized exe...  I'm not a programmer or anything
>so I can't explain what the profiling does exactly, only guessing.. but it does
>seem to help a LOT.

After profiling the compiler has a much better idea which branches will
be taken, what is worth inlining and what not, which data should be
grouped, etc...

--
GCP



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