def __init__(self, cpu):
self.cpu = cpu
self._factor = self.units["mhz"]
self._settings = {}
self._new_settings = {}
# Attributes that don't change
self._lims = read_freq_lims(cpu)
self._governors = read_govs(cpu)
self.energy_pref_avail = is_energy_pref_avail(cpu)
self.energy_prefs = []
self.update_conf()
def update_conf(self):
cpu = self.cpu
self._settings["freqs"] = read_freqs(cpu)
self._settings["governor"] = read_governor(cpu)
self._settings["online"] = is_online(cpu)
# In case a new governor has been added
self._governors = read_govs(cpu)
# If energy performance preferences are available
self._settings["energy_pref"] = None
if self.energy_pref_avail:
self._settings["energy_pref"] = read_energy_pref(cpu)
self.energy_prefs = read_available_energy_prefs(cpu)
self.reset_conf()
def parse_governor(cpu: int, gov: str):
"""Return valid governor for cpu from config
Args:
cpu: The cpu to check as an integer
gov: The governor value from config
Returns:
governor: A valid governor
"""
if cpu not in cpus_available():
return None
governors = read_govs(cpu)
if not governors:
return None
if gov in governors:
return gov
return governors[0]
def _generate_default_profiles(self):
"""Generate default profiles based on current hardware.
The two profiles generated are 'Balanced' and 'Performance'.
The profiles apply either power-saving or performance governor.
"""
# Get a governor list from first cpu
govs = read_govs(0)
if not govs:
return
# generate balanced profile based on powersave/ondemand governor
if "powersave" in govs:
self._profiles["Balanced"] = DefaultProfile(
"Balanced", "powersave")
elif "ondemand" in govs:
self._profiles["Balanced"] = DefaultProfile("Balanced", "ondemand")
# generate performance profile based on performance governor
if "performance" in govs:
self._profiles["Performance"] = DefaultProfile(
"Performance", "performance")