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From: Sergio Lenzi <lenzi@k1.com.br>
To: freebsd-questions@freebsd.org
Date: Tue, 20 Jun 2006 22:23:52 -0300
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Subject: FreeBSD smp
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Hello,

Is SMP enabled in the GENERIC kernel? I have a hyperthreading box, and
on
Linux it shows up with two cpus. When I do a top on the box in FreeBSD I
still
see only one CPU. Also, sysctl -a | grep cpu only shows a dev.cpu.0. 


You must set :

machdep.hyperthreading_allowed=1


in /boot/loader.conf.