Re: netBSD support for dual-Xeon. E7500, Hyper-Threading ...

I think you'll find that tech-smp or port-i386 are better placed to answer
this than port-arm.

Chris

(bcc'd port-arm so they know i've moved it)

----- Original Message -----
From: "David Francheski" <[email protected]>
To: <[email protected]>
Sent: Friday, September 27, 2002 7:55 PM
Subject: netBSD support for dual-Xeon. E7500, Hyper-Threading ...


> Can anyone tell me if netBSD supports the dual-Xeon architecture
>
> with E7500 chipset?    This would require netBSD to be SMP capable
>
> at a minimum (which I believe it is?).
>
>
>
> The Xeon has a feature called Hyper-Threading which enables the
>
> single physical processor to appear as two logical processors
>
> (completely transparent to the OS).   The only requirement is for
>
> the OS to detect the presence of the logical processors by reading
>
> the ACPI (Advanced Configuration and Power Interface) table maintained
> by the BIOS.
>
>
>
> Can netBSD already read the ACPI?
>
>
>
> My last question is whether or not netBSD can differentiate between the
> logical
>
> and physical processors themselves.   For performance reasons, the
> kernel
>
> should schedule processes/threads to execute on physical processors
> first,
>
> followed then by logical processors.
>
>
>
> Any help is greatly appreciated.
>
> Regards,
>
>
>
> David L. Francheski
>
>
>