def clear(self):
"""
Resets the meter.
"""
self.start_time = time()
self._count = 0
self._m1_rate = EWMA.one_minute_EWMA()
self._m5_rate = EWMA.five_minute_EWMA()
self._m15_rate = EWMA.fifteen_minute_EWMA()
def clear(self):
"""
Resets the meter.
"""
self.start_time = time()
self._count = 0
self._m1_rate = EWMA.one_minute_EWMA()
self._m5_rate = EWMA.five_minute_EWMA()
self._m15_rate = EWMA.fifteen_minute_EWMA()
def __init__(self, event_type=""):
"""
Creates a new L{Meter} instance.
@type event_type: C{str}
@param event_type: the plural name of the event the meter is measuring
(e.g., I{"requests"})
"""
self.event_type = event_type
self.start_time = time()
self._m1_rate = EWMA.one_minute_EWMA()
self._m5_rate = EWMA.five_minute_EWMA()
self._m15_rate = EWMA.fifteen_minute_EWMA()
self._count = 0
def __init__(self, event_type=""):
"""
Creates a new L{Meter} instance.
@type event_type: C{str}
@param event_type: the plural name of the event the meter is measuring
(e.g., I{"requests"})
"""
self.event_type = event_type
self.start_time = time()
self._m1_rate = EWMA.one_minute_EWMA()
self._m5_rate = EWMA.five_minute_EWMA()
self._m15_rate = EWMA.fifteen_minute_EWMA()
self._count = 0
def test_fifteen_minute_EWMA_one_minute_tick(self, time_mock):
time_mock.return_value = 0.0
self.ewma = EWMA.fifteen_minute_EWMA()
self.ewma.update(3)
time_mock.return_value += 5
self.ewma.tick()
for expected_rate in [0.6, 0.56130419, 0.52510399, 0.49123845,
0.45955700, 0.42991879, 0.40219203,
0.37625345, 0.35198773, 0.32928698]:
self.assertAlmostEqual(self.ewma.get_rate(), expected_rate)
time_mock.return_value += 60
def test_five_minute_EWMA_one_minute_tick(self, time_mock):
time_mock.return_value = 0.0
self.ewma = EWMA.five_minute_EWMA()
self.ewma.update(3)
time_mock.return_value += 5
self.ewma.tick()
for expected_rate in [0.6, 0.49123845, 0.40219203, 0.32928698,
0.26959738, 0.22072766, 0.18071653,
0.14795818, 0.12113791, 0.09917933]:
self.assertAlmostEqual(self.ewma.get_rate(), expected_rate)
time_mock.return_value += 60
def test_one_minute_EWMA_one_minute_tick(self, time_mock):
time_mock.return_value = 0.0
self.ewma = EWMA.one_minute_EWMA()
self.ewma.update(3)
time_mock.return_value += 5
self.ewma.tick()
for expected_rate in [0.6, 0.22072766, 0.08120117, 0.02987224,
0.01098938, 0.00404277, 0.00148725,
0.00054713, 0.00020128, 0.00007405]:
self.assertAlmostEqual(self.ewma.get_rate(), expected_rate)
time_mock.return_value += 60
def test_fifteen_minute_EWMA_one_minute_tick(self, time_mock):
time_mock.return_value = 0.0
self.ewma = EWMA.fifteen_minute_EWMA()
self.ewma.update(3)
time_mock.return_value += 5
self.ewma.tick()
for expected_rate in [
0.6, 0.56130419, 0.52510399, 0.49123845, 0.45955700,
0.42991879, 0.40219203, 0.37625345, 0.35198773, 0.32928698
]:
self.assertAlmostEqual(self.ewma.get_rate(), expected_rate)
time_mock.return_value += 60
def test_five_minute_EWMA_one_minute_tick(self, time_mock):
time_mock.return_value = 0.0
self.ewma = EWMA.five_minute_EWMA()
self.ewma.update(3)
time_mock.return_value += 5
self.ewma.tick()
for expected_rate in [
0.6, 0.49123845, 0.40219203, 0.32928698, 0.26959738,
0.22072766, 0.18071653, 0.14795818, 0.12113791, 0.09917933
]:
self.assertAlmostEqual(self.ewma.get_rate(), expected_rate)
time_mock.return_value += 60
def test_one_minute_EWMA_one_minute_tick(self, time_mock):
time_mock.return_value = 0.0
self.ewma = EWMA.one_minute_EWMA()
self.ewma.update(3)
time_mock.return_value += 5
self.ewma.tick()
for expected_rate in [
0.6, 0.22072766, 0.08120117, 0.02987224, 0.01098938,
0.00404277, 0.00148725, 0.00054713, 0.00020128, 0.00007405
]:
self.assertAlmostEqual(self.ewma.get_rate(), expected_rate)
time_mock.return_value += 60
