Date: Wed, 11 Mar 2009 08:36:47 +0100 From: Robert Heron <robert@heron.pl> To: freebsd-smp@FreeBSD.ORG, Heron <robert@heron.pl>, Julian Elischer <julian@elischer.org> Subject: Re: only one logical CPU used in Xeon Message-ID: <FD641002-AEA3-4C8E-93E0-3FE67BB658FA@heron.pl> In-Reply-To: <200903102131.n2ALVIjR072494@lurza.secnetix.de> References: <200903102131.n2ALVIjR072494@lurza.secnetix.de>
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On Mar 10, 2009, at 10:31 PM, Oliver Fromme wrote: > No need for benchmarks here, because Robert's processors > don't do hyperthreading at all. FreeBSD 6.2 recognized > the *cores* as logical HT processors, so he needs to > set hyperthreading_allowed in order to enable the cores. > > Of course, the better solution is to update to a more > recent release, such as 6.4 or even 7.1. His 6.2 is > more than 2 years old and contains lots of known bugs, > of which the wrong recognition of cores is a relatively > harmless one. I also tried 6.4 with exactly the same wrong results as 6.2. 7.1 is OK, but is has hyperthreading_allowed=1 by default. Robert
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