Correct CPUTYPE= for Intel Celeron 2.50GHz (2500.10-MHz 686-class CPU)

Nikolas Britton nikolas.britton at
Fri Jun 9 20:56:06 UTC 2006

On 6/9/06, Frank Steinborn <steinex at> wrote:
> Hello,
> can someone tell what the right choice for CPUTYPE in /etc/make.conf
> is for that CPU?

CFLAGS+= -mtune=prescott
COPTFLAGS+= -mtune=prescott

I find that this produces faster, and safer, code then
-march=pentium4, etc. alone. you can view all the gcc flags here:

> And, is it safe to build kernel and world with --march= too?

With the gcc options I gave to you above yes.

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