Re: clockctl(4) vs settimeofday(2)

[Rich Neswold <rich.neswold%gmail.com@localhost>]

On Mon, Dec 7, 2015 at 7:03 AM, Christos Zoulas <christos%astron.com@localhost> wrote:

In article <Pine.NEB.4.64.1512071017540.14191%vps1.whooppee.com@localhost>,
Paul Goyette  <paul%whooppee.com@localhost> wrote:
>However, looking at the source file for lib/libc/sys/settimeofday.c we
>have the following comment which says that we first try the syscall()
>and only use the /dev/clockctl mechanism if the syscall() fails:

Using the syscall is simpler and cheaper, so I think the man page should
be updated.

Is settimeofday() called frequently enough that "cheaper" is a concern? What is more correct (I don't know the answer)?

--

Rich