def calc_iteration(self, iter_num):
""" Return power usage of each application using audio after one
iteration. """
result = IterationData()
audio_on = (self._uid_usage is not None and len(self._uid_states) != 0
) or (self.AudioProxy.is_music_active())
result.set_sys_usage(AudioUsage(audio_on))
if self._uid_usage is not None:
with self._uidstate_lock:
uid = -1
for usage in self._uid_usage.values():
if usage.uid != uid:
result.set_uid_usage(usage.proxy_uid, AudioUsage(True))
uid = usage.uid
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using sensors after one
iteration. """
result = IterationData()
sensor_usage = SensorUsage()
with self._sensorslock:
sensor_usage.on_times = self._state.get_times()
result.set_sys_usage(sensor_usage)
for uid, state in self._uid_states.iteritems():
usage = SensorUsage()
usage.on_times = state.get_times()
result.set_uid_usage(uid, usage)
if state.started_sensors == 0:
del (self._uid_states[uid])
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using audio after one
iteration. """
result = IterationData()
audio_on = (self._uid_usage is not None and len(self._uid_states) !=
0) or (self.AudioProxy.is_music_active())
result.set_sys_usage(AudioUsage(audio_on))
if self._uid_usage is not None:
with self._uidstate_lock:
uid = -1
for usage in self._uid_usage.values():
if usage.uid != uid:
result.set_uid_usage(usage.proxy_uid, AudioUsage(True))
uid = usage.uid
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using GPS after one
iteration. """
result = IterationData()
# Get the power data for the physical GPS device
with self._statekeeper_lock:
state_times = self._statekeeper.state_times
pwr_state = self._statekeeper.pwr_state
self._statekeeper.reset_times()
# Get the number of satellite that were available in the last update
num_satellites = 0
with self._gpsstatus_lock:
if pwr_state == self.POWER_STATE_ON and self._status is not None:
num_satellites = len(self._status.getSatellites())
result.set_sys_usage(GPSUsage(state_times, num_satellites))
# Get usage data for each UID we have information on
if self.has_uid_information:
with self._uidstates_lock:
self._update_time = (self._start_time + self._iter_interval *
iter_num)
for uid, state in self._uid_states.iteritems():
state_times = state.get_state_times()
pwr_state = state.get_power_state()
state.reset_times()
# There is a guarantee that num_satellites will be zero
# if GPS is off (see above)
result.set_uid_usage(uid, GPSUsage(state_times,
num_satellites))
# Remove state information for UIDs no longer using the GPS
if pwr_state == self.POWER_STATE_OFF:
del (self._uid_states[uid])
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using display after one
iteration. """
result = IterationData()
brightness = Screen.get_display_brightness()
if 0 <= brightness <= 255:
self.logger.warn("Could not retrieve brightness information")
return result
with self._screenlock:
screen = self.screen_on
usage = LCDUsage(brightness, screen)
result.set_sys_usage(usage)
if screen:
uid = ForegroundDetector.get_foreground_uid()
result.set_uid_usage(uid, usage)
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using display after one
iteration. """
result = IterationData()
brightness = Screen.get_display_brightness()
if 0 <= brightness <= 255:
self.logger.warn("Could not retrieve brightness information")
return result
with self._screenlock:
screen = self.screen_on
usage = LCDUsage(brightness, screen)
result.set_sys_usage(usage)
if screen:
uid = ForegroundDetector.get_foreground_uid()
result.set_uid_usage(uid, usage)
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using 3G interface during
one iteration."""
result = IterationData()
net_type = self._telephony.get_network_type()
# Seems like TelephonyManager.NETWORK_TYPE_HSDPA = 8
# TODO: Actually get models for the different network types
if ((net_type != TelephonyAccess.NETWORK_TYPE_UMTS)
and (net_type != TelephonyAccess.NETWORK_TYPE_HSDPA)):
net_type = TelephonyAccess.NETWORK_TYPE_UMTS
net_state = self._telephony.get_state()
if ((net_state != TelephonyAccess.DATA_CONNECTED)
or (net_type != TelephonyAccess.NETWORK_TYPE_UMTS
and net_type != TelephonyAccess.NETWORK_TYPE_HSDPA)):
# We need to allow the real interface state to reset itself so that
# the next update it knows it's coming back from an off state. We
# also need to clear all UID information
self._state.interface_off()
self._uid_states.clear()
result.set_sys_usage(ThreeGUsage())
return result
tx_pkts = int(self._sysfs.tx_packets)
rx_pkts = int(self._sysfs.rx_packets)
tx_bytes = int(self._sysfs.tx_bytes)
rx_bytes = int(self._sysfs.rx_bytes)
if (tx_bytes == -1) or (rx_bytes == -1):
self.logger.warn("Failed to read UID Tx/Rx byte counts")
return result
self._state.update(tx_pkts, rx_pkts, tx_bytes, rx_bytes)
if self._state.is_initialized():
result.set_sys_usage(
ThreeGUsage(True, self._state.delta_pkts, self._state.tx_bytes,
self._state.rx_bytes, self._state.pwr_state,
self._provider))
uids = SystemInfo.get_uids()
if uids is not None:
for uid in uids:
if uid < 0:
continue
uid_state = self._uid_states.setdefault(uid, ThreeGState())
if uid_state.is_stale():
# Use heuristic to not poll for UIDs that haven't had much
# activity recently
continue
# Read operations are the expensive part of polling
with open(self.UID_TX_BYTE_MASK.format(uid)) as fp:
tx_bytes = int(fp.read().strip())
with open(self.UID_RX_BYTE_MASK.format(uid)) as fp:
rx_bytes = int(fp.read().strip())
if (rx_bytes == -1) or (tx_bytes == -1):
self.logger.warn("Failed to read UID Tx/Rx byte counts")
elif uid_state.is_initialized():
uid_state.update(0, 0, tx_bytes, rx_bytes)
if ((uid_state.tx_bytes + uid_state.rx_bytes != 0)
or (uid_state.pwr_state != self.POWER_STATE_IDLE)):
usage = ThreeGUsage(True, uid_state.delta_pkts,
uid_state.tx_bytes,
uid_state.rx_bytes,
uid_state.pwr_state,
self._provider)
result.set_uid_usage(uid, usage)
else:
uid_state.update(0, 0, tx_bytes, rx_bytes)
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using CPU core after one
iteration. """
result = IterationData()
freq = self._read_cpu_freq()
if freq == 0:
self.logger.warn("Failed to read CPU frequency")
return result
times = SystemInfo.get_usr_sys_total_times(self.num)
if len(times) == 0:
self.logger.warn("Failed to read CPU times")
return result
usr_time = times[SystemInfo.INDEX_USR_TIME]
sys_time = times[SystemInfo.INDEX_SYS_TIME]
total_time = times[SystemInfo.INDEX_TOTAL_TIME]
init = self._state.is_initialized()
self._state.update(usr_time, sys_time, total_time, iter_num)
# Power draw is based on usage time along with CPU frequency
if init:
result.set_sys_usage(CPUUsage(self._state.get_usr_perc(),
self._state.get_sys_perc(), freq))
# Distribute CPU power draw during iteration among running processes.
# CPU usage is returned by Linux using process ID.
# A UID can have many processes and our final result should be based on
# UID (app), therefore we need to account for all processes referring
# to the same UID
self._uid_states.clear()
pids = SystemInfo.get_running_pids()
if pids is not None:
for i, pid in enumerate(pids):
if pid < 0:
break
pid_state = self._pid_states.get(pid, None)
# New process that hasn't been registered yet by our monitor
if not pid_state:
uid = SystemInfo.get_uid_for_pid(pid)
if uid >= 0:
self._pid_states[pid] = CPUState(uid)
else:
# Assume process no longer exists
continue
if pid_state.is_stale(iter_num):
# Nothing much is going on with this PID recently. We'll
# just assume that it's not using any of the CPU for this
# iteration
pid_state.skip_update(iter_num, total_time)
else:
times = SystemInfo.get_pid_usr_sys_times(pid)
if len(times) > 0:
usr_time = times[SystemInfo.INDEX_USR_TIME]
sys_time = times[SystemInfo.INDEX_SYS_TIME]
# Update slice of time used by this process based on
# global iteration time
pid_state.update(usr_time, sys_time, total_time,
iter_num)
if not init:
continue
uid_state = self._uid_states.get(pid_state.uid, None)
# Register new UID if it doesn't exist. Else absorb power data
# from its respective process
if uid_state is not None:
self._uid_states[pid_state.uid] = pid_state
else:
uid_state.absorb(pid_state)
# Remove processes that are no longer active
self._pid_states = {k: v for k, v in self._pid_states.iteritems() if
self._pid_states[k].is_alive(iter_num)}
# Collect the summed UID information
for k, v in self._uid_states.iteritems():
uid_usage = self._get_cpu_usage(uid_state.get_usr_perc(),
uid_state.get_sys_perc(), freq)
result.set_uid_usage(uid, uid_usage)
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using WiFi after one
iteration. """
result = IterationData()
state = self._wifi.get_state()
if ((state != WifiAccess.WIFI_STATE_ENABLED)
or (state != WifiAccess.WIFI_STATE_DISABLING)):
# Allow the real interface state keeper to reset its state so that
# the next update it knows it's coming back from an off state. We
# also need to clear all UID information
self._state.interface_off()
self._uid_states.clear()
self._speed = None
result.set_sys_usage(WifiUsage())
return result
tx_pkts = int(self._sysfs.tx_packets)
rx_pkts = int(self._sysfs.rx_packets)
tx_bytes = int(self._sysfs.tx_bytes)
rx_bytes = int(self._sysfs.rx_bytes)
if ((tx_pkts == -1) or (rx_pkts == -1) or (tx_bytes == -1)
or (rx_bytes == -1)):
self.logger.warn("Failed to read packet and byte counts from WiFi")
return result
# Update the link speed every 15 seconds as pulling the WifiInfo
# structure from WifiManager is a little expensive. This isn't really
# something that is likely to change frequently anyway
if (iter_num % 15 == 0) or not self._speed:
self._speed = self._wifi.get_speed()
if self._state.is_initialized():
result.set_sys_usage(
WifiUsage(True, self._state.delta_pkts,
self._state.delta_tx_bytes,
self._state.delta_rx_bytes, self._state.tx_rate,
self._speed, self._state.pwr_state))
self._state.update(tx_pkts, rx_pkts, tx_bytes, rx_bytes)
uids = SystemInfo.get_uids()
if uids is not None:
for uid in uids:
if uid < 0:
continue
uid_state = self._uid_states.get(uid, None)
if not uid_state:
uid_state = WifiState(
self._constants.WIFI_HIGHLOW_PKTBOUND,
self._constants.WIFI_LOWHIGH_PKTBOUND)
self._uid_states[uid] = uid_state
if not uid_state.is_stale():
# Use heuristic to not poll for UIDs that haven't had much
# activity recently
continue
# These read operations are the expensive part of polling
with open(self.UID_TX_BYTE_MASK.format(uid)) as fp:
tx_bytes = int(fp.read().strip())
with open(self.UID_RX_BYTE_MASK.format(uid)) as fp:
rx_bytes = int(fp.read().strip())
if (rx_bytes == -1) or (tx_bytes == -1):
self.logger.warn("Failed to read UID Tx/Rx byte counts")
elif uid_state.is_initialized():
# We only have info on bytes received but what we really
# want is the number of packets received so we will
# estimate it
delta_tx_bytes = tx_bytes - self._state.tx_bytes
delta_rx_bytes = rx_bytes - self._state.rx_bytes
tx_pkts = int(
round(delta_tx_bytes / self._state.avg_tx_pkt_size))
rx_pkts = int(
round(delta_rx_bytes / self._state.avg_rx_pkt_size))
if (delta_tx_bytes > 0) and (tx_pkts == 0):
tx_pkts = 1
if (delta_rx_bytes > 0) and (rx_pkts == 0):
rx_pkts = 1
active = ((tx_bytes != uid_state.tx_bytes)
or (rx_bytes != uid_state.rx_bytes))
uid_state.update((self._state.tx_pkts + tx_pkts),
(self._state.rx_pkts + rx_pkts), tx_bytes,
rx_bytes)
if active:
usage = WifiUsage(True, uid_state.delta_pkts,
uid_state.delta_tx_bytes,
uid_state.delta_rx_bytes,
uid_state.tx_rate, self._speed,
uid_state.pwr_state)
result.set_uid_usage(uid, usage)
else:
uid_state.update(0, 0, tx_bytes, rx_bytes)
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using 3G interface during
one iteration."""
result = IterationData()
net_type = self._telephony.get_network_type()
# Seems like TelephonyManager.NETWORK_TYPE_HSDPA = 8
# TODO: Actually get models for the different network types
if ((net_type != TelephonyAccess.NETWORK_TYPE_UMTS) and
(net_type != TelephonyAccess.NETWORK_TYPE_HSDPA)):
net_type = TelephonyAccess.NETWORK_TYPE_UMTS
net_state = self._telephony.get_state()
if ((net_state != TelephonyAccess.DATA_CONNECTED) or
(net_type != TelephonyAccess.NETWORK_TYPE_UMTS and net_type
!= TelephonyAccess.NETWORK_TYPE_HSDPA)):
# We need to allow the real interface state to reset itself so that
# the next update it knows it's coming back from an off state. We
# also need to clear all UID information
self._state.interface_off()
self._uid_states.clear()
result.set_sys_usage(ThreeGUsage())
return result
tx_pkts = int(self._sysfs.tx_packets)
rx_pkts = int(self._sysfs.rx_packets)
tx_bytes = int(self._sysfs.tx_bytes)
rx_bytes = int(self._sysfs.rx_bytes)
if (tx_bytes == -1) or (rx_bytes == -1):
self.logger.warn("Failed to read UID Tx/Rx byte counts")
return result
self._state.update(tx_pkts, rx_pkts, tx_bytes, rx_bytes)
if self._state.is_initialized():
result.set_sys_usage(ThreeGUsage(True, self._state.delta_pkts,
self._state.tx_bytes,
self._state.rx_bytes,
self._state.pwr_state,
self._provider))
uids = SystemInfo.get_uids()
if uids is not None:
for uid in uids:
if uid < 0:
continue
uid_state = self._uid_states.setdefault(uid, ThreeGState())
if uid_state.is_stale():
# Use heuristic to not poll for UIDs that haven't had much
# activity recently
continue
# Read operations are the expensive part of polling
with open(self.UID_TX_BYTE_MASK.format(uid)) as fp:
tx_bytes = int(fp.read().strip())
with open(self.UID_RX_BYTE_MASK.format(uid)) as fp:
rx_bytes = int(fp.read().strip())
if (rx_bytes == -1) or (tx_bytes == -1):
self.logger.warn("Failed to read UID Tx/Rx byte counts")
elif uid_state.is_initialized():
uid_state.update(0, 0, tx_bytes, rx_bytes)
if ((uid_state.tx_bytes + uid_state.rx_bytes != 0) or
(uid_state.pwr_state != self.POWER_STATE_IDLE)):
usage = ThreeGUsage(True, uid_state.delta_pkts,
uid_state.tx_bytes,
uid_state.rx_bytes,
uid_state.pwr_state, self._provider)
result.set_uid_usage(uid, usage)
else:
uid_state.update(0, 0, tx_bytes, rx_bytes)
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using CPU core after one
iteration. """
result = IterationData()
freq = self._read_cpu_freq()
if freq == 0:
self.logger.warn("Failed to read CPU frequency")
return result
times = SystemInfo.get_usr_sys_total_times(self.num)
if len(times) == 0:
self.logger.warn("Failed to read CPU times")
return result
usr_time = times[SystemInfo.INDEX_USR_TIME]
sys_time = times[SystemInfo.INDEX_SYS_TIME]
total_time = times[SystemInfo.INDEX_TOTAL_TIME]
init = self._state.is_initialized()
self._state.update(usr_time, sys_time, total_time, iter_num)
# Power draw is based on usage time along with CPU frequency
if init:
result.set_sys_usage(
CPUUsage(self._state.get_usr_perc(),
self._state.get_sys_perc(), freq))
# Distribute CPU power draw during iteration among running processes.
# CPU usage is returned by Linux using process ID.
# A UID can have many processes and our final result should be based on
# UID (app), therefore we need to account for all processes referring
# to the same UID
self._uid_states.clear()
pids = SystemInfo.get_running_pids()
if pids is not None:
for i, pid in enumerate(pids):
if pid < 0:
break
pid_state = self._pid_states.get(pid, None)
# New process that hasn't been registered yet by our monitor
if not pid_state:
uid = SystemInfo.get_uid_for_pid(pid)
if uid >= 0:
self._pid_states[pid] = CPUState(uid)
else:
# Assume process no longer exists
continue
if pid_state.is_stale(iter_num):
# Nothing much is going on with this PID recently. We'll
# just assume that it's not using any of the CPU for this
# iteration
pid_state.skip_update(iter_num, total_time)
else:
times = SystemInfo.get_pid_usr_sys_times(pid)
if len(times) > 0:
usr_time = times[SystemInfo.INDEX_USR_TIME]
sys_time = times[SystemInfo.INDEX_SYS_TIME]
# Update slice of time used by this process based on
# global iteration time
pid_state.update(usr_time, sys_time, total_time,
iter_num)
if not init:
continue
uid_state = self._uid_states.get(pid_state.uid, None)
# Register new UID if it doesn't exist. Else absorb power data
# from its respective process
if uid_state is not None:
self._uid_states[pid_state.uid] = pid_state
else:
uid_state.absorb(pid_state)
# Remove processes that are no longer active
self._pid_states = {
k: v
for k, v in self._pid_states.iteritems()
if self._pid_states[k].is_alive(iter_num)
}
# Collect the summed UID information
for k, v in self._uid_states.iteritems():
uid_usage = self._get_cpu_usage(uid_state.get_usr_perc(),
uid_state.get_sys_perc(), freq)
result.set_uid_usage(uid, uid_usage)
return result
def calc_iteration(self, iter_num):
""" Return power usage of each application using WiFi after one
iteration. """
result = IterationData()
state = self._wifi.get_state()
if ((state != WifiAccess.WIFI_STATE_ENABLED) or
(state != WifiAccess.WIFI_STATE_DISABLING)):
# Allow the real interface state keeper to reset its state so that
# the next update it knows it's coming back from an off state. We
# also need to clear all UID information
self._state.interface_off()
self._uid_states.clear()
self._speed = None
result.set_sys_usage(WifiUsage())
return result
tx_pkts = int(self._sysfs.tx_packets)
rx_pkts = int(self._sysfs.rx_packets)
tx_bytes = int(self._sysfs.tx_bytes)
rx_bytes = int(self._sysfs.rx_bytes)
if ((tx_pkts == -1) or (rx_pkts == -1) or (tx_bytes == -1) or
(rx_bytes == -1)):
self.logger.warn("Failed to read packet and byte counts from WiFi")
return result
# Update the link speed every 15 seconds as pulling the WifiInfo
# structure from WifiManager is a little expensive. This isn't really
# something that is likely to change frequently anyway
if (iter_num % 15 == 0) or not self._speed:
self._speed = self._wifi.get_speed()
if self._state.is_initialized():
result.set_sys_usage(WifiUsage(True, self._state.delta_pkts,
self._state.delta_tx_bytes,
self._state.delta_rx_bytes,
self._state.tx_rate, self._speed,
self._state.pwr_state))
self._state.update(tx_pkts, rx_pkts, tx_bytes, rx_bytes)
uids = SystemInfo.get_uids()
if uids is not None:
for uid in uids:
if uid < 0:
continue
uid_state = self._uid_states.get(uid, None)
if not uid_state:
uid_state = WifiState(self._constants.WIFI_HIGHLOW_PKTBOUND,
self._constants.WIFI_LOWHIGH_PKTBOUND)
self._uid_states[uid] = uid_state
if not uid_state.is_stale():
# Use heuristic to not poll for UIDs that haven't had much
# activity recently
continue
# These read operations are the expensive part of polling
with open(self.UID_TX_BYTE_MASK.format(uid)) as fp:
tx_bytes = int(fp.read().strip())
with open(self.UID_RX_BYTE_MASK.format(uid)) as fp:
rx_bytes = int(fp.read().strip())
if (rx_bytes == -1) or (tx_bytes == -1):
self.logger.warn("Failed to read UID Tx/Rx byte counts")
elif uid_state.is_initialized():
# We only have info on bytes received but what we really
# want is the number of packets received so we will
# estimate it
delta_tx_bytes = tx_bytes - self._state.tx_bytes
delta_rx_bytes = rx_bytes - self._state.rx_bytes
tx_pkts = int(round(delta_tx_bytes /
self._state.avg_tx_pkt_size))
rx_pkts = int(round(delta_rx_bytes /
self._state.avg_rx_pkt_size))
if (delta_tx_bytes > 0) and (tx_pkts == 0):
tx_pkts = 1
if (delta_rx_bytes > 0) and (rx_pkts == 0):
rx_pkts = 1
active = ((tx_bytes != uid_state.tx_bytes) or
(rx_bytes != uid_state.rx_bytes))
uid_state.update((self._state.tx_pkts + tx_pkts),
(self._state.rx_pkts + rx_pkts), tx_bytes,
rx_bytes)
if active:
usage = WifiUsage(True, uid_state.delta_pkts,
uid_state.delta_tx_bytes,
uid_state.delta_rx_bytes,
uid_state.tx_rate,
self._speed, uid_state.pwr_state)
result.set_uid_usage(uid, usage)
else:
uid_state.update(0, 0, tx_bytes, rx_bytes)
return result