1# performance testing setup script for dragon device
2
3if [[ "`id -u`" -ne "0" ]]; then
4  echo "WARNING: running as non-root, proceeding anyways..."
5fi
6
7# locking CPU frequency
8
9# note: locking cpu0 is sufficent to cover other cores as well
10echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
11echo 1530000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
12echo 1530000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
13echo 1530000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
14
15# locking GPU frequency
16
17# note: frequency choices can be found in:
18# cat /sys/class/drm/card0/device/pstate
19
20# select 768 MHz
21# 0a: core 768 MHz emc 1600 MHz
22echo 0a > /sys/class/drm/card0/device/pstate
23