Date: Thu, 7 May 2009 06:55:17 +0400 From: pluknet <pluknet@gmail.com> To: Barney Cordoba <barney_cordoba@yahoo.com> Cc: "Current@freebsd.org" <Current@freebsd.org> Subject: Re: Hypertherading Message-ID: <a31046fc0905061955u4a7b5755ifbcd7bd5641cd954@mail.gmail.com> In-Reply-To: <270637.78561.qm@web63905.mail.re1.yahoo.com> References: <270637.78561.qm@web63905.mail.re1.yahoo.com>
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2009/5/7 Barney Cordoba <barney_cordoba@yahoo.com>: > > I just got a shiny new nehalem box and it comes up with 16 processors with dual quads installed. Is there any benefit or should hyperthreading be disabled? > Hi. There is a measurable win if hyperthreading is enabled [1]. You can switch it off via machdep.hyperthreading_enabled loader tunable. [1] http://lists.freebsd.org/pipermail/freebsd-stable/2009-January/047460.html -- wbr, pluknet
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