pluknet pluknet at gmail.com
Thu May 7 02:55:19 UTC 2009

2009/5/7 Barney Cordoba <barney_cordoba at 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


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