Debian 10.7 net install. 32 bit OS. CPU Intel N280 (single core, two threads). Nominal CPS frequency is 1662MHz. BIOS settings are unknown (remote machine with no iLO/KVM).
But CPC is here, because I see these files:
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find / -name scaling_governor
find / -name scaling_max_freq
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ondemand
ondemand
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
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performance
performance
The same issue with:
apt install cpufrequtils
for i in 0 1; do cpufreq-set -c $i -g performance; done
Also tried to set up kernel values via grub:
nano /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="intel_idle.max_cstate=0 processor.max_cstate=1 pcie_aspm=off idle=poll"
update-grub
sysctemctl reboot
But they are ignored after reboot, and CPU again shows low speeds like 1030-1260MHz
dmesg -T | grep intel_idle output is:
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[Sat Jan 9 14:48:34 2021] intel_idle: MWAIT substates: 0x20220
[Sat Jan 9 14:48:34 2021] intel_idle: v0.4.1 model 0x1C
[Sat Jan 9 14:48:34 2021] intel_idle: lapic_timer_reliable_states 0x2