Also seeing 2 x quad-core system slower that 2 x dual core

[Kris Kennaway]

Ivan Voras wrote:
> Kris Kennaway wrote:
> 
>> Check dmesg for the APIC numbers corresponding to the CPUs you want to
>> disable and add the corresponding entries to /boot/loader.conf, e.g.:
>>
>> hint.lapic.1.disable="1"
>> hint.lapic.3.disable="1"
>> hint.lapic.5.disable="1"
>> hint.lapic.7.disable="1"
> 
> Hi,
> 
> Do you know how his method compares to setting machdep.hlt_cpus ?

That is not supported with ULE (and will lead to deadlocks), but I don't 
know off-hand if hyperthreading virtual CPUs have their own apic...ok, 
it does on one of my systems at least, so that is probably the way to go 
when possible.

Kris