| Re: [chrony-users] Fwd: Chrony malfunctioning at beaglebones |
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On Thu, Nov 19, 2015 at 11:25:55PM +0000, Nuno Gonçalves wrote:
> So I just tried to recompile a kernel and disabling dyntick. That's
> it. The jitter dropped to the best values I had before when having a
> task running every 1ms, so AFAIK nohz=off is really not working.
Interesting. I think one way to verify if nohz is really disabled is
to check the interrupt counter in /proc/interrupts. On a x86_64
machine with 4.2.6 kernel booted with nohz=off I can see the LOC value
is gaining about 1000 per second as expected.
Does the recompiled kernel have the same CONFIG_HZ as the one you
tried before?
--
Miroslav Lichvar
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