From owner-freebsd-net@freebsd.org  Wed Apr 20 18:51:38 2016
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Date: Wed, 20 Apr 2016 20:51:33 +0200
From: Miroslav Lachman <000.fbsd@quip.cz>
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To: Raimundo Santos <raitech@gmail.com>,
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Subject: Re: HZ kernel configuration still needed nowadays?
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Raimundo Santos wrote on 04/20/2016 18:54:

> In this scenario, it's needed to compile my kernel with HZ=1000?
>
> And, in general, is it still needed to compile a custom kernel for dummynet
> to work more precisely?

hz=1000 is the default value. You can check it by sysctl:

# sysctl kern.hz
kern.hz: 1000

And you can change it in /boot/loader.conf if you need.

echo 'kern.hz="999"' >> /boot/loader.conf
shutdown -r now

Miroslav Lachman