first time with a 64bit CPU ... kernel config ...

Marc G. Fournier scrappy at
Mon Jan 16 15:23:35 PST 2006

On Mon, 16 Jan 2006, Vivek Khera wrote:

> On Jan 16, 2006, at 2:25 PM, Marc G. Fournier wrote:
>> perfect, thanks ... final question for now ... when I get and put in the 
>> second CPU, is there anything I need to add/change in the kernel config 
>> file for it, or will it just be auto-detected?
> options SMP
> done.  i'm fairly confident you can boot such a kernel on a single CPU too.
> also, make sure you don't have hyperthreading on these processors on.  it 
> seems to just degrade performance.  if you build a SMP kernel, it will try to 
> use hyperthreading unless you tell it not to and/or it is disabled in bios.

'k, will have to check the BIOS on this one, but how does one disable it 
within FreeBSD 6.x?  Same as 4.x?

Marc G. Fournier           Hub.Org Networking Services (
Email: scrappy at           Yahoo!: yscrappy              ICQ: 7615664

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