def _calculate_datapoints(self, final_pass=False):
for point in super(PBenchKPIReader, self)._calculate_datapoints(final_pass):
concurrency = self.stats_reader.get_data(point[DataPoint.TIMESTAMP])
for label_data in viewvalues(point[DataPoint.CURRENT]):
label_data[KPISet.CONCURRENCY] = concurrency
yield point
def _calculate_datapoints(self, final_pass=False):
for point in super(PBenchKPIReader, self)._calculate_datapoints(final_pass):
concurrency = self.stats_reader.get_data(point[DataPoint.TIMESTAMP])
for label_data in viewvalues(point[DataPoint.CURRENT]):
label_data[KPISet.CONCURRENCY] = concurrency
yield point
def _get_windowed_points(self, tstmp, value):
self.agg_buffer[tstmp] = value
for tstmp_old in self.agg_buffer.keys():
if tstmp_old <= tstmp - self.window:
del self.agg_buffer[tstmp_old]
continue
break
return viewvalues(self.agg_buffer)
def test_unpack(self):
ITERATIONS = 200
SIZE_LIMIT = 10
mon_buffer = MonitoringBuffer(SIZE_LIMIT, ROOT_LOGGER)
for i in range(ITERATIONS):
mon = [{"ts": i, "source": "local", "cpu": 1}]
mon_buffer.record_data(mon)
unpacked = sum(item['interval'] for item in viewvalues(mon_buffer.data['local']))
self.assertEqual(unpacked, ITERATIONS)
def _get_windowed_points(self, tstmp, value):
self.agg_buffer[tstmp] = value
for tstmp_old in self.agg_buffer.keys():
if tstmp_old <= tstmp - self.window:
del self.agg_buffer[tstmp_old]
continue
break
return viewvalues(self.agg_buffer)
def test_downsample_theorem(self):
# Theorem: average interval size in monitoring buffer will always
# be less or equal than ITERATIONS / BUFFER_LIMIT
mon_buffer = MonitoringBuffer(100, ROOT_LOGGER)
for i in range(5000):
mon = [{"ts": i, "source": "local", "cpu": 1, "mem": 2, "bytes-recv": 100, "other": 0}]
mon_buffer.record_data(mon)
for source, buffer in iteritems(mon_buffer.data):
self.assertLessEqual(len(buffer), 100)
sizes = [item['interval'] for item in viewvalues(buffer)]
avg_size = float(sum(sizes)) / len(sizes)
expected_size = 5000 / 100
self.assertLessEqual(avg_size, expected_size * 1.20)
def traverse(cls, obj, visitor):
"""
Deep traverse dict with visitor
:type obj: list or dict or object
:type visitor: callable
"""
if isinstance(obj, dict):
visitor(obj)
for val in viewvalues(obj):
cls.traverse(val, visitor)
elif isinstance(obj, list):
for val in obj:
cls.traverse(val, visitor)
def traverse(cls, obj, visitor):
"""
Deep traverse dict with visitor
:type obj: list or dict or object
:type visitor: callable
"""
if isinstance(obj, dict):
visitor(obj)
for val in viewvalues(obj):
cls.traverse(val, visitor)
elif isinstance(obj, list):
for val in obj:
cls.traverse(val, visitor)
