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Date: Sun, 21 Dec 2008 17:26:54 -0600
From: "Sam Fourman Jr." <sfourman@gmail.com>
To: michael <michael.copeland@gmail.com>
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References: <200812202039.NAA10290@lariat.net> <494D5B32.50806@gmail.com>
Cc: Brett Glass <brett@lariat.net>, freebsd-questions@freebsd.org
Subject: Re: Status of hyperthreading in FreeBSD
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>>
> as far as i know, just enabling smp will allow ht to function. also, i don't
> know if intel changed ht in the new atom processor, they could have.
>>
is FreeBSD's smp special in some way that it would be the exception to
the following statement.
I know there was a lot of changes made in the new ULE2 scheduler maybe
that is why?

/*
Hyper-threading relies on support in the operating system as well as
the CPU. Conventional multiprocessor support is not enough to take
advantage of hyper-threading.[1] For example, even though Windows 2000
supports multiple CPUs, Intel does not recommend that hyper-threading
be enabled under that operating system.
*/

I found this in wikipedia at the following link
http://en.wikipedia.org/wiki/Hyper-threading

Sam Fourman Jr.
Fourman Networks