if you have a modern intel CPU you can use this shell script to adjust the efficiency factor and control performance vs battery life on your laptop
intel 6th gen (skylake) and above,
I hope you all find it useful.
intel 6th gen (skylake) and above,
I hope you all find it useful.
Code:
#!/bin/sh
if [ $# != 1 ]
then
echo "You need to give me the effeciency scale from 0 to 100."
echo "0 : Best performance"
echo "100: Best battery life."
exit
fi
if ! [ $(echo $1 | grep -E '^[0-9]+$') ]
then
echo "Error: Not a valid number."
echo " effeciency scale must be a number in the range of 0 - 100 "
exit
fi
if [ $1 -gt 100 ]
then
echo "Error : effeciency scale is out of range."
echo " effeciency scale must be a number in the range of 0 - 100 "
exit
fi
Ncores=$(sysctl kern.smp.cores | cut -f2 -d':')
NThrds=$(sysctl kern.smp.threads_per_core | cut -f2 -d':')
MAX_CPU_UNITS=$((Ncores*NThrds-1))
for c in $(seq 0 $MAX_CPU_UNITS)
do
sudo sysctl dev.hwpstate_intel.$c.epp=$1
done
# Copyright 2023 Dr Amr Osman, Consultant of cardiology
# BSD 3 Clause
