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From: Nicholas Basila <mlists@northglobe.com>
To: Eric Masson <e-masson@kisoft-services.com>,
	Sam Napier <geek@mchsi.com>
Date: Sat, 13 Sep 2003 02:23:44 -0400
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cc: freebsd-smp@freebsd.org
Subject: Re: option Hyperthreading
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On Tuesday 02 September 2003 12:19 pm, Eric Masson wrote:
> >>>>> "Sam" == Sam Napier <geek@mchsi.com> writes:
>
>  Sam> 	I have a quad P-Pro machine (IBM PC-704) running FreeBSD 4.8
>  Sam> p-7, I wanted to know if there is an advantage to enabling
>  Sam> hyperthreading in the kernel config when you are using more
> than 2 Sam> physical processors?
>
> I really doubt PPros have HT capabilities. So in the best case, your
> box won't use HT code.
I've used the PC 704 machines before - they are 6+ year (probably 7 
year) old technology. I understand that you can update them by adding 
new processor boards, but I doubt they were even upgradeable to a P2, 
let alone a P4.
	I worked with several of them - and they all developed problems 
recognizing processors, after a couple of years of use. 
	Oh well - they do make a sturdy table....

Regards,

Nicholas

>
> Eric Masson