[Bug 259642] CLOCK_* seems to default to CLOCK_*_PRECISE instead of CLOCK_*_FAST

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259642

            Bug ID: 259642
           Summary: CLOCK_* seems to default to CLOCK_*_PRECISE instead of
                    CLOCK_*_FAST
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: 0mp@FreeBSD.org

The clock_gettime(2) manual page [1] documents that:

>    The clock IDs CLOCK_REALTIME_FAST,	CLOCK_MONOTONIC_FAST,
>    CLOCK_UPTIME_FAST are analogs of corresponding IDs	without	_FAST suffix
>    but do not	perform	a full time counter query, so their accuracy is	one
>    timer tick.

However, in the source code of kern_clock_gettime() in sys/kern/kern_time.c
[2], the clock IDs without a suffix default to PRECISE instead of FAST.

Is it the manual page or the source code that needs fixing?

[1]:
https://www.freebsd.org/cgi/man.cgi?query=clock_gettime&manpath=FreeBSD+13.0-RELEASE+and+Ports
[2]:
https://cgit.freebsd.org/src/tree/sys/kern/kern_time.c?h=releng%2F13.0#n323

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