Date: Wed, 01 Feb 2006 11:46:02 +0000 From: Pete French <petefrench@ticketswitch.com> To: john@essenz.com, mikej@rogers.com Cc: freebsd-stable@freebsd.org Subject: Re: 6-stable and HTT P4 Message-ID: <E1F4GR0-000CCB-3O@dilbert.firstcallgroup.co.uk> In-Reply-To: <43E05432.1040102@rogers.com>
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> > Just got it to work though... Had to add > > machdep.hyperthreading_allowed=1 to loader.conf in addition to > > hlt_logical_cpus=0 > > Great. FYI, HTT will give you little or even negative performance benefits. Heh - I still cant persuade my 6.0-RELEASE to *not* use hyperthreading! have got hyperthreading_allowed set to 0, hlt_logical_cpus set to 1 and it sttill shcedules things on 4 CPU's rather than 2. -pcf.
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