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From: Max Laier <max@love2party.net>
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To: freebsd-hackers@freebsd.org
Date: Mon, 28 Jan 2008 20:02:44 +0100
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Cc: Sean Bruno <sbruno@miralink.com>
Subject: Re: How long is a hz?
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On Monday 28 January 2008, Sean Bruno wrote:
> I couldn't quite find the definition for "hz" in sys/ this morning.
> What is it's value and where is it defined?

sys/kern/subr_param.c:int   hz;
sys/sys/time.h:     int     hz;         /* clock frequency */

sys/kernel.h:extern int tick;           /* usec per tick (1000000 / hz) */
sys/kernel.h:extern int hz;             /* system clock's frequency */

The actual value for hz comes from your kernel configuration.  The default=
=20
is "options HZ=3D1000" at the moment.

=2D-=20
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