src: Change the default precision of timestamps from 9 digits (n...

[Repository Conversion <srcmastr%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3e91316e5446
branches:  trunk
changeset: 318153:3e91316e5446
user:      kre <kre%NetBSD.org@localhost>
date:      Sat Apr 14 01:53:38 2018 +0000
description:
Change the default precision of timestamps from 9 digits (nanosecs)
to 7 (100's of nanosecs).   This should perhaps depend upon the
port (what resolution is rational) the CPU speed, and the clock
update frequency (no point printing nanoseconds if the value being
brinted is only updated every few microseconds).

Eventually it should be able to be controlled by a sysctl, but
the default still matters, as that's what the autoconf (boot time,
before init starts) messages will use.

diffstat:

 sys/kern/subr_prf.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r ceeacf817838 -r 3e91316e5446 sys/kern/subr_prf.c
--- a/sys/kern/subr_prf.c       Sat Apr 14 01:45:37 2018 +0000
+++ b/sys/kern/subr_prf.c       Sat Apr 14 01:53:38 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: subr_prf.c,v 1.169 2018/04/14 01:45:37 kre Exp $       */
+/*     $NetBSD: subr_prf.c,v 1.170 2018/04/14 01:53:38 kre Exp $       */
 
 /*-
  * Copyright (c) 1986, 1988, 1991, 1993
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_prf.c,v 1.169 2018/04/14 01:45:37 kre Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_prf.c,v 1.170 2018/04/14 01:53:38 kre Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_ddb.h"
@@ -484,7 +484,7 @@
 
 #ifndef KLOG_NOTIMESTAMP
 static int needtstamp = 1;
-int log_ts_prec = 9;
+int log_ts_prec = 7;
 
 static void
 addtstamp(int flags, struct tty *tp)