[Bug 192315] high load average while idle, slow keyboard reaction

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192315

--- Comment #10 from Steve Wills <swills at FreeBSD.org> ---
(In reply to Alexander Motin from comment #9)
> 
> Hmm. It looks like the deepest C-state was actually disabled automatically.
> Then it is surprising to have any problem with LAPIC. But, just to be sure
> that BIOS does not fool us, could you disable all C-states completely with
> something like this in rc.conf:
> performance_cx_lowest="C1"
> economy_cx_lowest="C1"
> , and if it won't help, also disable C1E in BIOS.

Setting performance_cx_lowest="C1" and economy_cx_lowest="C1" in rc.conf did
seem to help.

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