Make use of several older machines here for testing and software development. As single-core they are not even officially supported - but still make excellent test beds...
Just had an instance with a new install of ClearOS 7.3 where one machine's clock would loose several seconds in each minute. The rate was too great for ntp to correct... So what clock-source is being used and what is available?
OK - let's change it...
It now keeps excellent time. See http://pamela.sraellis.tk/frame-10-ntp.html
One should make a systemd entry so this happens at boot time - too much effort! A simple line in /etc/rc.d/rc.local, although frowned on, is all that's required...
Might just help someone...
Just had an instance with a new install of ClearOS 7.3 where one machine's clock would loose several seconds in each minute. The rate was too great for ntp to correct... So what clock-source is being used and what is available?
[root@pamela ~]# cat /sys/devices/system/clocksource/clocksource0/available_clocksource
tsc acpi_pm
[root@pamela ~]# cat /sys/devices/system/clocksource/clocksource0/current_clocksource
tsc
OK - let's change it...
[root@pamela ~]# echo acpi_pm > /sys/devices/system/clocksource/clocksource0/current_clocksource
[root@pamela ~]# cat /sys/devices/system/clocksource/clocksource0/current_clocksource
acpi_pm
It now keeps excellent time. See http://pamela.sraellis.tk/frame-10-ntp.html
One should make a systemd entry so this happens at boot time - too much effort! A simple line in /etc/rc.d/rc.local, although frowned on, is all that's required...
Might just help someone...
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