Abdullah Al-Marrie wrote:
On 1/10/07, Garrett Cooper <[EMAIL PROTECTED]> wrote:
Abdullah Al-Marrie wrote:
> Mine is EMT64, but I use i386.
> Could you please tell me why P4 would be better for MySQL server or
> apache?
Crap, I can't find the article where Intel was comparing the Opterons to
the Xeons that I was reading last night. It mentioned what the Intel
guys used for GCC with -march on a Core 2 Duo system.

However, I did find a Gentoo Wiki page where it says that safe CFLAGS /
CPUTYPE values for EM64T CPUs is nocona:
The only thing is that they use gcc-3.4 by default as well as gcc-4.1 /
gcc-4.2, so processor support may be better with the later versions of gcc.


So for i386 I should use prescott, right?
prescott should be a safe bet, yes. However, I don't see why nocona support couldn't be used. CPUTYPE in freebsd's make.conf is a "soft alias" to -march, which adds CPU support for the target architecture, but doesn't force the binary to only work in the target architecture IIRC.
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