HTT on single CPU?

Lukas Ertl l.ertl at
Tue Jul 8 04:36:24 PDT 2003

On Tue, 8 Jul 2003, Marco Wertejuk wrote:

> Hi Lukas,
> | how do I enable Hyperthreading on a box that has just a single CPU?
> you just have to enable Hyperthreading in the computers
> BIOS and compile a SMP Kernel with options HTT.

I would need to look a second time, but there is no such BIOS option, and
"options HTT" was nuked in 5.1, replaced by machdep.hlt_logical_cpus,
which I don't have on my system.


Lukas Ertl                             eMail: l.ertl at
UNIX-Systemadministrator               Tel.:  (+43 1) 4277-14073
Zentraler Informatikdienst (ZID)       Fax.:  (+43 1) 4277-9140
der Universität Wien         

More information about the freebsd-current mailing list