win3-resources/scripts/tdp

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#! /usr/bin/bash
# Global vars/settings
command_name=$(basename $0)
rapl_base="/sys/class/powercap/intel-rapl:0"
pl1_path="${rapl_base}/constraint_0_power_limit_uw"
pl2_path="${rapl_base}/constraint_1_power_limit_uw"
# Set up help text
help_text="${command_name}: GDP Win 3 TDP management script
This script checks and sets the TDP using intel_rapl
Usage:
${command_name} COMMAND [ARGUMENTS]
Command:
check [ARGS] Checks current TDP and prints it in watts
set WATTS [ARGS] Setts TDP to the requested number in watts
help Prints this help text
COMMAND --help Prints help for specified command"
check_help_text="${command_name} check [ARG]
Example:
${command_name} check --detail
${command_name} c -d
Arguments:
--detail, -d Prints PL2 as well as PL1
--help Prints this help text"
set_help_text="${command_name} set WATT [ARGUMENTS]
Example:
${command_name} set 10 --detail
${command_name} s 10 -d
Arguments:
--detail, -d Prints PL2 as well as PL1
--help Prints this help text"
print_help () {
case $1 in
"check")
echo "$check_help_text"
;;
"set")
echo "$set_help_text"
;;
*)
echo "$help_text"
;;
esac
}
print_unknown () {
echo "Unknown command or incorrect arguments.
Try \"${command_name} help\" or \"${command_name} COMMAND --help\""
}
# End of help text
# Conversion tools
uw_to_w () {
if ! [[ $1 =~ ^-?[0-9]+$ ]]; then
exit
else
echo $(expr $1 / 1000000)
fi
}
w_to_uw () {
if ! [[ $1 =~ ^-?[0-9]+$ ]]; then
exit
else
echo $(expr $1 '*' 1000000)
fi
}
# Retrieves current TDP and prints it
check_tdp () {
if [[ "$@" == *"--detail"* ]] || [[ "$@" == *"-d"* ]]; then
local detailed=yes
fi
if [ -z "$1" ]; then
echo "PL1 is $(uw_to_w 10000000)W" # Placeholder
if [ $detailed == "yes" ]; then
echo "PL2 is $(uw_to_w 12000000)W" # Placeholder
elif [ "$1" == "--help" ]; then
print_help "check"
else
print_unknown
fi
}
# Sets PL1 to number provided as first argument, and PL2 2W higher
set_tdp () {
if [ -z "$1" ]; then
echo "Please specify wattage"
exit
elif [ "$1" == "--help" ]; then
print_help "set"
exit
elif ! [[ $1 =~ ^-?[0-9]+$ ]]; then
echo "TDP is not a number or argument unknown!)"
print_unknown
exit
fi
if [ $1 -lt 5 ] || [ $1 -gt 30 ]; then
echo "TDP too high or low, should be between 5W and 30W"
echo "This is a sanity limit to prevent you from throttling to a near unusable state"
else
#PL1
local watts=$1
local uwatts=$(w_to_uw $watts)
#PL2
local watts2=$(expr $watts + 2)
local uwatts2=$(w_to_uw $watts2)
echo $uwatts
echo "PL1 is now ${watts}W (Long-term)"
if [[ "$@" == *"--detail"* ]] || [[ "$@" == *"-d"* ]]; then
echo "PL2 is now ${watts2}W (Short-term)"
fi
fi
}
# Command handler
case $1 in
"check" | "c")
check_tdp "${@:2}"
;;
"set" | "s")
set_tdp "${@:2}"
;;
"help")
print_help
;;
*)
print_unknown
;;
esac