Please add the output of
cat /proc/acpi/processor/CPU0/power and grep . -r /sys/devices/system/cpu/cpu0/cpuidle/
with/without nohz=off option.
Please add the output of
cat /proc/acpi/ processor/ CPU0/power system/ cpu/cpu0/ cpuidle/
and
grep . -r /sys/devices/
with/without nohz=off option.