def meter(module, name, count=1):
"""
Record an event rate:
::
meter(__name__, 'my_meter', 'event_type')
"""
meter = get_metric('meters', module, name, Meter())
meter.mark(count)
class Timer(object):
"""A timer metric which aggregates timing durations and provides duration
statistics, plus throughput statistics via a Meter.
Translated from Timer.java
"""
def __init__(self, duration_units):
self.meter = Meter()
self.histogram = Histogram()
self.duration_units = duration_units
def view(self):
snapshot = self.get_snapshot()
result = {
'count': self.meter.get_count(),
'max': snapshot.get_max(),
'mean': snapshot.get_mean(),
'min': snapshot.get_min(),
'p50': snapshot.get_median(),
'p75': snapshot.get_75th_percentile(),
'p95': snapshot.get_95th_percentile(),
'p98': snapshot.get_98th_percentile(),
'p99': snapshot.get_99th_percentile(),
'p999': snapshot.get_999th_percentile(),
'stddev': snapshot.get_std_dev(),
'm15_rate': self.meter.get_fifteen_minute_rate(),
'm1_rate': self.meter.get_one_minute_rate(),
'm5_rate': self.meter.get_five_minute_rate(),
'mean_rate': self.meter.get_mean_rate(),
'duration_units': self.duration_units,
'rate_units': 'calls/second'
}
return result
def update(self, duration):
"""Add a recorded duration."""
if duration >= 0:
self.histogram.update(duration)
self.meter.mark()
def get_count(self):
return self.histogram.get_count()
def get_fifteen_minute_rate(self):
return self.meter.get_fifteen_minute_rate()
def get_five_minute_rate(self):
return self.meter.get_five_minute_rate()
def get_one_minute_rate(self):
return self.meter.get_one_minute_rate()
def get_mean_rate(self):
return self.meter.get_mean_rate()
def get_snapshot(self):
return self.histogram.get_snapshot()
def __init__(self, duration_units):
self.meter = Meter()
self.histogram = Histogram()
self.duration_units = duration_units
def meter_and_clock():
with mock.patch('time.time', Clock(0.0)) as clock:
clock = clock
meter = Meter()
yield (meter, clock)
class Timer(object):
"""A timer metric which aggregates timing durations and provides duration
statistics, plus throughput statistics via a Meter.
Translated from Timer.java
"""
def __init__(self, duration_units):
self.meter = Meter()
self.histogram = Histogram()
self.duration_units = duration_units
def view(self):
snapshot = self.get_snapshot()
result = {
'count': self.meter.get_count(),
'max': snapshot.get_max(),
'mean': snapshot.get_mean(),
'min': snapshot.get_min(),
'p50': snapshot.get_median(),
'p75': snapshot.get_75th_percentile(),
'p95': snapshot.get_95th_percentile(),
'p98': snapshot.get_98th_percentile(),
'p99': snapshot.get_99th_percentile(),
'p999': snapshot.get_999th_percentile(),
'stddev': snapshot.get_std_dev(),
'm15_rate': self.meter.get_fifteen_minute_rate(),
'm1_rate': self.meter.get_one_minute_rate(),
'm5_rate': self.meter.get_five_minute_rate(),
'mean_rate': self.meter.get_mean_rate(),
'duration_units': self.duration_units,
'rate_units': 'calls/second'
}
return result
def update(self, duration):
"""Add a recorded duration."""
if duration >= 0:
self.histogram.update(duration)
self.meter.mark()
def get_count(self):
return self.histogram.get_count()
def get_fifteen_minute_rate(self):
return self.meter.get_fifteen_minute_rate()
def get_five_minute_rate(self):
return self.meter.get_five_minute_rate()
def get_one_minute_rate(self):
return self.meter.get_one_minute_rate()
def get_mean_rate(self):
return self.meter.get_mean_rate()
def get_snapshot(self):
return self.histogram.get_snapshot()
def __init__(self, duration_units):
self.meter = Meter()
self.histogram = Histogram()
self.duration_units = duration_units
