IMX6 V7.90.010 NTP checking every 15 seconds

**Iridium** · January 4, 2017 at 6:27 PM Official Post

IMX6 V7.90.010
Running journalctl --no-pager -b -0 -f

-- Logs begin at Thu 1970-01-01 01:19:51 BST. --
Jan 04 17:57:51 Deneb connmand[547]: ntp: time slew +0.001860 s
Jan 04 17:58:07 Deneb connmand[547]: ntp: time slew +0.001613 s
Jan 04 17:58:23 Deneb connmand[547]: ntp: time slew +0.001042 s
Jan 04 17:58:39 Deneb connmand[547]: ntp: time slew -0.001880 s
Jan 04 17:58:55 Deneb connmand[547]: ntp: time slew +0.004571 s
Jan 04 17:59:11 Deneb connmand[547]: ntp: time slew +0.001150 s
Jan 04 17:59:27 Deneb connmand[547]: ntp: time slew -0.002975 s
Jan 04 17:59:43 Deneb connmand[547]: ntp: time slew +0.008019 s
Jan 04 17:59:59 Deneb connmand[547]: ntp: time slew -0.001660 s
Jan 04 18:00:15 Deneb connmand[547]: ntp: time slew +0.000708 s

Which seems to suggest that LE is checking the NTP server every ~15 seconds.
Is this normal as it seems a bit excessive?

**vpeter** · January 4, 2017 at 6:55 PM

I see only 2 queries on boot and then nothing for some time.

Code

LibreELEC:~ #  journalctl --no-pager -b -0 | grep ntp:
Jan 04 18:52:17 LibreELEC connmand[304]: ntp: time slew +1.154688 s
Jan 04 18:52:18 LibreELEC connmand[304]: ntp: time slew -0.002825 s

**Iridium** · January 4, 2017 at 7:31 PM Official Post

Quote from vpeter

I see only 2 queries on boot and then nothing for some time.

Code

LibreELEC:~ #  journalctl --no-pager -b -0 | grep ntp:
Jan 04 18:52:17 LibreELEC connmand[304]: ntp: time slew +1.154688 s
Jan 04 18:52:18 LibreELEC connmand[304]: ntp: time slew -0.002825 s

Interesting? Mine is an upgrade from V7.90.005.
Still the same rate of updates ~16 seconds.

Could this be a fault in the RTC?
Anyway of disabling the update?

m.hueske · January 5, 2017 at 7:00 PM

just for your information: mine is doing this every 17 minutes, which seems ok to me

Code

Jan 05 18:07:24 LibreELEC connmand[286]: ntp: time slew +0.077293 s
Jan 05 18:24:28 LibreELEC connmand[286]: ntp: time slew +0.073507 s
Jan 05 18:41:32 LibreELEC connmand[286]: ntp: time slew +0.073023 s
Jan 05 18:58:36 LibreELEC connmand[286]: ntp: time slew +0.054811 s
Jan 05 19:15:40 LibreELEC connmand[286]: ntp: time slew +0.107906 s
Jan 05 19:32:44 LibreELEC connmand[286]: ntp: time slew +0.070018 s
Jan 05 19:49:48 LibreELEC connmand[286]: ntp: time slew +0.082021 s

**Iridium** · January 5, 2017 at 7:20 PM Official Post

Interestingly, after a reboot.
Jan 05 17:17:41 Deneb connmand[508]: ntp: time slew +0.750029 s
Jan 05 17:34:45 Deneb connmand[508]: ntp: time slew +0.071785 s
Jan 05 17:51:49 Deneb connmand[508]: ntp: time slew +0.072652 s
Jan 05 18:08:53 Deneb connmand[508]: ntp: time slew +0.072468 s
Jan 05 18:25:57 Deneb connmand[508]: ntp: time slew +0.071524 s
Jan 05 18:43:01 Deneb connmand[508]: ntp: time slew +0.077104 s
Jan 05 19:00:05 Deneb connmand[508]: ntp: time slew +0.075826 s

It's gone to every 17 minutes, the same as m.hueske