HTT on single CPU?
Tom Samplonius
tom at sdf.com
Tue Jul 8 12:01:34 PDT 2003
On Tue, 8 Jul 2003, John Baldwin wrote:
...
> > 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.
>
> You need to enable SMP and APIC_IO in your kernel to use HTT. Also,
> the BIOS setting probably won't make a difference.
Well, not all P4 CPUs are capable of HyperThreading. It has to be
fairly new. Plus, only certain motherboard chipsets seem capable of
supporting HyperThreading. I would suspect that the BIOS has no
HyperThreading options, it probably doesn't even support it.
> --
>
> John Baldwin <jhb at FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
> "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
> _______________________________________________
Tom
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