cpu scaling freq cpufreq powersave
apt install cpufrequtils more /etc/init.d/cpufrequtils cpufreq-set -g powersave cpufreq-info ===== lscpu cat /proc/cpuinfo | grep -i ‘mhz’ grep -E ‘^model name|^cpu MHz’ /proc/cpuinfo cat /sys/devices/system/cpu/cpufreq/policy7/scaling_governor cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq **performance for CPUFREQ in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do [ -f $CPUFREQ ] || continue; echo -n performance > $CPUFREQ; done **powersave for CPUFREQ in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do [ -f $CPUFREQ ] || continue; echo -n powersave > $CPUFREQ; done echo “powersave” > /sys/devices/system/cpu/cpufreq/policy0/scaling_governor ...