def get_current_governor(self):
governors = ["", ""]
adb = ADBInterface()
governors[0] = adb.command(
"cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor").split(
)[0]
governors[1] = adb.command(
"cat /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor").split(
)[0]
return governors
def reset_cpu_frequencies(self, cpu):
adb = ADBInterface()
table_path = "/sys/devices/system/cpu/cpufreq/mp-cpufreq/{}_freq_table".format(
self.little_name if cpu <= 3 else self.big_name)
freqs = adb.command("cat {}".format(table_path)).split()
min_freq = freqs[-1]
max_freq = freqs[0]
self.set_min_freq(cpu, min_freq)
self.set_max_freq(cpu, max_freq)
def set_hotplug_online(self, state):
adb = ADBInterface()
if state:
adb.command("echo 1 > /sys/power/enable_dm_hotplug")
else:
adb.command("echo 0 > /sys/power/enable_dm_hotplug")
def set_governor(self, governor):
self.set_big_online(True)
self.set_hotplug_online(False)
adb = ADBInterface()
adb.command(
"echo {} > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor".
format(governor))
adb.command(
"echo {} > /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor".
format(governor))
def set_big_online(self, state):
adb = ADBInterface()
if state:
for i in range(4):
adb.command(
"echo 1 > /sys/devices/system/cpu/cpu{}/online 2> /dev/null"
.format(i))
else:
for i in range(4):
adb.command(
"echo 0 > /sys/devices/system/cpu/cpu{}/online 2> /dev/null"
.format(i))
def set_max_freq(self, cpu, freq):
adb = ADBInterface()
adb.command(
"echo {} > /sys/devices/system/cpu/cpu{}/cpufreq/scaling_max_freq".
format(freq, cpu))
def get_max_freq(self, cpu):
adb = ADBInterface()
return adb.command(
"cat /sys/devices/system/cpu/cpu{}/cpufreq/scaling_max_freq".
format(cpu)).split()[0]
def get_governors(self):
adb = ADBInterface()
return adb.command(
"cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors"
).split()