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Date:      Fri, 27 Jan 2006 11:48:14 -0800
From:      Colin Percival <cperciva@freebsd.org>
To:        Pete French <petefrench@ticketswitch.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: How do I turn off hyperthreading on 6.0 ?
Message-ID:  <43DA78FE.3060600@freebsd.org>
In-Reply-To: <E1F2ZOL-000Dyc-HS@dilbert.firstcallgroup.co.uk>
References:  <E1F2ZOL-000Dyc-HS@dilbert.firstcallgroup.co.uk>

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Pete French wrote:
>> If you look at top(1), which processors do you see actually running
>> processes?
> 
> Errr, 0, 1, 2 and 3!

What do

# sysctl machdep.hlt_cpus
# sysctl machdep.logical_cpus_mask
# sysctl machdep.hyperthreading_allowed

say?

Colin Percival



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