Waiting for bufdaemon

[Konstantin Belousov]

On Sun, Mar 07, 2021 at 02:25:45PM -0600, Kyle Evans wrote:
> I'm going to be pedantic here, but note that this isn't a tunable. You
> cannot, AFAIK, influence the timecounter chosen with kenv; it has to
> be set post-boot via sysctl, and if you're really unlucky it could be
> that bufdaemon wedges before you manage to change it (though it seems
> unlikely).
> 
> I've had some success with setting it to ACPI-fast in sysctl.conf here.
Right, I forgot that timecounter.hardware is not tunable, I thought that
it was fixed.

https://reviews.freebsd.org/D29122