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Nvidia's Max Performance Script for Tegra X1
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#!/bin/sh | |
# turn on fan for safety | |
echo "Enabling fan for safety..." | |
if [ ! -w /sys/kernel/debug/tegra_fan/target_pwm ] ; then | |
echo "Cannot set fan -- exiting..." | |
fi | |
echo 255 > /sys/kernel/debug/tegra_fan/target_pwm | |
echo 0 > /sys/devices/system/cpu/cpuquiet/tegra_cpuquiet/enable | |
echo 1 > /sys/kernel/cluster/immediate | |
echo 1 > /sys/kernel/cluster/force | |
echo G > /sys/kernel/cluster/active | |
echo "Cluster: `cat /sys/kernel/cluster/active`" | |
# online all CPUs - ignore errors for already-online units | |
echo "onlining CPUs: ignore errors..." | |
for i in 0 1 2 3 ; do | |
echo 1 > /sys/devices/system/cpu/cpu${i}/online | |
done | |
echo "Online CPUs: `cat /sys/devices/system/cpu/online`" | |
# set CPUs to max freq (perf governor not enabled on L4T yet) | |
echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor | |
cpumax=`cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk '{print $NF}'` | |
echo "${cpumax}" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed | |
for i in 0 1 2 3 ; do | |
echo "CPU${i}: `cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq`" | |
done | |
# max GPU clock (should read from debugfs) | |
cat /sys/kernel/debug/clock/gbus/max > /sys/kernel/debug/clock/override.gbus/rate | |
echo 1 > /sys/kernel/debug/clock/override.gbus/state | |
echo "GPU: `cat /sys/kernel/debug/clock/gbus/rate`" | |
# max EMC clock (should read from debugfs) | |
cat /sys/kernel/debug/clock/emc/max > /sys/kernel/debug/clock/override.emc/rate | |
echo 1 > /sys/kernel/debug/clock/override.emc/state | |
echo "EMC: `cat /sys/kernel/debug/clock/emc/rate`" |
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