cvs commit: src/sys/kern subr_param.c

Pawel Jakub Dawidek pjd at
Fri May 9 09:12:35 UTC 2008

On Fri, May 09, 2008 at 11:08:20AM +0200, Oliver Fromme wrote:
> Pawel Jakub Dawidek wrote:
>  >   Modified files:
>  >     sys/kern             subr_param.c 
>  >   Log:
>  >   - Export HZ value via kern.hz sysctl (this is the same name as for the
>  >     loader tunable).
> It's probably just me, but I don't see the usefulness of
> this.  The HZ value is already exported via kern.clockrate.
> (I'm not saying the change is wrong, I'm just looking for
> an explanation.)

The reason for this change was that I was trying to recall what is the
name of the tunable and I wasn't able to find it with simple
"sysctl -a | grep hz". In an ideal world most of not all loader tunables
should also be visible as read-only sysctls.

> (On the other hand, how about exporting the value of the
> kernel variable "ticks"?  Just a thought.)

No opinion on that one.

Pawel Jakub Dawidek             
pjd at                 
FreeBSD committer                         Am I Evil? Yes, I Am!
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