def __init__(self,
system_facade,
cfm_facade,
writer_function,
additional_system_metrics=[]):
"""
Constructor.
@param system_facade facade object to access system utils.
@param cfm_facade facade object to access cfm utils.
@param writer_function function called to collected metrics.
@param additional_system_metrics Additional metrics to collect.
"""
metric_set = system_metrics_collector.create_default_metric_set(
system_facade)
for metric in additional_system_metrics:
metric_set.append(metric)
self._system_metrics_collector = (
system_metrics_collector.SystemMetricsCollector(
system_facade, metric_set))
# Media metrics
data_point_collector = media_metrics_collector.DataPointCollector(
cfm_facade)
self._media_metrics_collector = (
media_metrics_collector.MetricsCollector(data_point_collector))
self._writer_function = writer_function
# Collector thread.
self._collector_thread = threading.Thread(
target=self._collect_snapshots_until_stopped)
self._stop = threading.Event()
def test_collector_default_set_of_metrics_no_error(self):
# Only verify no errors are thrown when collecting using
# the default metric set.
collector = system_metrics_collector.SystemMetricsCollector(
FakeSystemFacade())
collector.collect_snapshot()
collector.collect_snapshot()
collector.write_metrics(lambda **kwargs: None)
def test_collector(self):
collector = system_metrics_collector.SystemMetricsCollector(
FakeSystemFacade(), [TestMetric()])
collector.collect_snapshot()
d = {}
def _write_func(**kwargs):
d.update(kwargs)
collector.write_metrics(_write_func)
self.assertEquals('test_description', d['description'])
self.assertEquals([1], d['value'])
self.assertEquals(False, d['higher_is_better'])
self.assertEquals('test_unit', d['units'])
def __init__(
self,
title,
own_script,
common_script,
bindir,
tmpdir,
debugdir,
timeout = 70,
test_runtime_seconds = 60,
num_peer_connections = 5,
iteration_delay_millis = 500,
before_start_hook = None):
def perf_before_start_hook(tab):
"""
Before start hook to disable cpu overuse detection.
"""
if before_start_hook:
before_start_hook(tab)
tab.EvaluateJavaScript('cpuOveruseDetection = false')
super(WebRtcPeerConnectionPerformanceTest, self).__init__(
title,
own_script,
common_script,
bindir,
tmpdir,
debugdir,
timeout,
test_runtime_seconds,
num_peer_connections,
iteration_delay_millis,
perf_before_start_hook)
self.collector = system_metrics_collector.SystemMetricsCollector(
system_facade_native.SystemFacadeNative())
# TODO(crbug/784365): If this proves to work fine, move to a separate
# module and make more generic.
delay = 5
iterations = self.test_runtime_seconds / delay + 1
utils.BgJob('top -b -d %d -n %d -w 512 -c > %s/top_output.txt'
% (delay, iterations, self.debugdir))
utils.BgJob('iostat -x %d %d > %s/iostat_output.txt'
% (delay, iterations, self.debugdir))
utils.BgJob('for i in $(seq %d);'
'do netstat -s >> %s/netstat_output.txt'
';sleep %d;done'
% (delay, self.debugdir, iterations))