win3-resources/scripts/tdp

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#! /usr/bin/bash
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# Global vars/settings
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command_name=$(basename $0)
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rapl_path="/sys/class/powercap/intel-rapl:0"
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pl1_path="${rapl_path}/constraint_0_power_limit_uw"
pl2_path="${rapl_path}/constraint_1_power_limit_uw"
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# Set up help text
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help_text="${command_name}: GDP Win 3 TDP management script
This script checks and sets the TDP using intel_rapl
Usage:
${command_name} COMMAND [ARGUMENTS]
Command:
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check [ARGS] Checks current TDP and prints it in watts
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c [ARGS] Shortened version of check
set WATTS [ARGS] Sets TDP to the requested number in watts
s WATTS [ARGS] Shortened version of set
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help Prints this help text
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COMMAND --help Prints help for specified command"
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check_help_text="${command_name} check [ARG]
Example:
${command_name} check --detail
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${command_name} c -d
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Arguments:
--detail, -d Prints PL2 as well as PL1
--help Prints this help text"
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set_help_text="${command_name} set WATT [ARGUMENTS]
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Example:
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${command_name} set 10 --detail
${command_name} s 10 -d
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Arguments:
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--detail, -d Prints PL2 as well as PL1
--same, -s PL2 will be set to the same as PL1 rather than 2W higher
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--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
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# 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 $1 '*' 1000000)
fi
}
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# Common checks/tasks
is_detailed () {
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if [[ "$@" == *"--detail"* ]] || [[ "$@" == *"-d"* ]]; then
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exit 0
else
exit 1
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fi
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}
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set_pl () {
if [ $1 -eq 1 ] || [ $1 -eq 2 ] || [ ! -z $2 ]; then
if [ $1 -eq 1 ]; then
pl_path=$pl1_path
elif [ $1 -eq 2 ]; then
pl_path=$pl2_path
fi
if [ "$EUID" -eq 0 ]; then
echo $(w_to_uw $2) > $pl_path
else
sudo bash -c "echo $(w_to_uw $2) > ${pl_path}"
fi
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else
exit 1
fi
}
get_pl () {
if [ $1 -eq 1 ]; then
cat $pl1_path
elif [ $1 -eq 2 ]; then
cat $pl2_path
fi
}
# Retrieves current TDP and prints it
check_tdp () {
if [ -z "$1" ] || ( is_detailed $@ ); then
local pl1=$(uw_to_w $(get_pl 1))
local pl2=$(uw_to_w $(get_pl 2))
echo "PL1 is ${pl1}W" # Placeholder
if ( is_detailed $@ ); then
echo "PL2 is ${pl2}W" # Placeholder
fi
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elif [ "$1" == "--help" ]; then
print_help "check"
else
print_unknown
fi
}
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# Sets PL1 to number provided as first argument, and PL2 2W higher
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set_tdp () {
if [ -z "$1" ]; then
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echo "Please specify wattage"
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exit
elif [ "$1" == "--help" ]; then
print_help "set"
exit
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elif ! [[ $1 =~ ^-?[0-9]+$ ]]; then
echo "TDP is not a number or argument unknown!)"
print_unknown
exit
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fi
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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"
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else
#PL1
local watts=$1
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set_pl 1 $watts
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#PL2
local watts2=$(expr $watts + 2)
if [[ "$@" == *"--same"* ]] || [[ "$@" == *"-s"* ]]; then
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watts2=$watts
fi
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set_pl 2 $watts2
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echo "PL1 is now ${watts}W (Long-term)"
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if ( is_detailed $@ ); then
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echo "PL2 is now ${watts2}W (Short-term)"
fi
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fi
}
# Command handler
case $1 in
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"check" | "c")
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check_tdp "${@:2}"
;;
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"set" | "s")
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set_tdp "${@:2}"
;;
"help")
print_help
;;
*)
print_unknown
;;
esac