(I am not subscribed to the mailing list, please keep me CC'd)

Issue: a stable/10 system that has an abnormally high load average (e.g.
0.15, but may be higher depending on other variables which I can't
account for) when the machine is definitely idle (i.e. cannot be traced
to high interrupt usage per vmstat -i, cannot be traced to a userland
process or kernel thread, etc.).

This problem has been discussed many times on the FreeBSD mailing lists
and the FreeBSD forum (including some folks seeing it on 9.x, but my
complaint here is focused on 10.x so please focus there).

I'd politely like to request that anyone experiencing this, or who has
experienced it (and if you know when it stopped or why, including what
you may have done, include that), to chime in on this ticket from 2012
(made for 9.x but style of issue still applies; c#5 is quite valid):

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541

For those still experiencing it, I'd suggest reading c#8 and seeing if
sysctl kern.eventtimer.periodic=1 relieves the problem for you.  (At
this time I would not suggest leaving that set indefinitely, as it does
seem to increase the interrupt rate in cpuX:timer in vmstat -i.  But for
me kern.eventtimer.periodic=1 "fixes" the issue)

Thanks.

-- 
| Jeremy Chadwick                                   j...@koitsu.org |
| UNIX Systems Administrator                http://jdc.koitsu.org/ |
| Making life hard for others since 1977.             PGP 4BD6C0CB |

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