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random/turbo-boost
2022-07-19 19:06:28 -05:00

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#!/bin/sh
# This is to toggle intel turbo boost.
if [[ -z $(which rdmsr) ]]; then
echo "msr-tools is not installed. Please install it and try again." >&2
exit 1
fi
if [[ ! -z $1 && $1 != "enable" && $1 != "disable" ]]; then
echo "Invalid argument: $1" >&2
echo ""
echo "Usage: $(basename $0) [disable|enable]"
exit 1
fi
cores=$(cat /proc/cpuinfo | grep processor | awk '{print $3}')
for core in $cores; do
if [[ $1 == "disable" ]]; then
sudo wrmsr -p${core} 0x1a0 0x4000850089
fi
if [[ $1 == "enable" ]]; then
sudo wrmsr -p${core} 0x1a0 0x850089
fi
state=$(sudo rdmsr -p${core} 0x1a0 -f 38:38)
if [[ $state -eq 1 ]]; then
echo "core ${core}: disabled"
else
echo "core ${core}: enabled"
fi
done