SMP with hyperthreading CPU (5.3)?
Ewald Jenisch
a at jenisch.at
Tue Nov 2 01:25:10 PST 2004
On Sat, Oct 30, 2004 at 01:43:09PM -0700, Luke wrote:
> I haven't updated my system since August, but back then the "apic" device
> was also required. 5.3 may be different.
> This is the relevant section from my 5.2-CURRENT hyperthreading kernel
> from last August.
>
> # To make an SMP kernel, the next two are needed
> options SMP # Symmetric MultiProcessor Kernel
> device apic # I/O APIC
>
Sorry, forgot to say, that I've got both of them in my kernel config
file, i.e. "SMP" and "apic" - however I don't get the characteristic
"CPU... launched" messages upon boot.
This brings me to another point: What's the best way (besides checking
/var/log/messages) to tell whether SMP is active?
Does "top" display cpu load for hyperthreading (as opposed to
multiprocessor) systems too?
-ewald
More information about the freebsd-questions
mailing list