https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541
--- Comment #46 from Alexander Motin ---
It is a long known problem of very idle systems. To save the power kernel
tries to group different timer events together to reduce number of CPU wakeups
from idle state. The problem is that load
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541
--- Comment #45 from Viktor Štujber
---
fwiw the dualcore HT atom minipc I originally reported this for has been
showing realistic averages (0.01 to 0.10) since my last post around 10.2 in
late 2015, and has remained that way until now,
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541
--- Comment #48 from Alexander Motin ---
I am not sure what he means. There could be some optimizations, but I am not
sure it can be easily fixed, unless we implement some mechanism to somehow
strictly prevent timer other events grouping
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541
--- Comment #50 from Mark Millard ---
(In reply to Alexander Motin from comment #46)
Quoting your #9 :
. . . if system is idle, its CPU may wakeup as low as two times per second.
But, the load average code is based on fixed 5 second
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541
--- Comment #52 from Mark Millard ---
(In reply to Stavros Filargyropoulos from comment #51)
Good question: bad substitution in my head that I did not notice,
despite "second" being in what I quoted.
So Ignore my #50. Sorry for the
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541
--- Comment #49 from Stavros Filargyropoulos ---
(In reply to Alexander Motin from comment #48)
Thanks Alexander. Gives me some more confidence to know the root cause and
understand that it shouldn't functionally affect the system in any
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541
--- Comment #51 from Stavros Filargyropoulos ---
(In reply to Mark Millard from comment #50)
> 30sec
Where did you get the 30secs from?
He said twice per second. Not per minute?
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=173541
--- Comment #47 from Stavros Filargyropoulos ---
(In reply to Alexander Motin from comment #46)
Alexander, in the comment above g...@freebsd.org suggested that this has been
fixed. I tried to have a look through the recent commits in ACPI
